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id="_R_3dd_">Appearance settings</div></div></div><div class="MarketingHeader-module__menu__GIy3y"><div class="MarketingHeader-module__menuWrapper__owstH"><nav class="MarketingNavigation-module__nav__W0KYY" aria-label="Global"><ul class="MarketingNavigation-module__list__tFbMb"><li><div class="NavDropdown-module__container__l2YeI"><button type="button" class="NavDropdown-module__button__PEHWX" aria-expanded="false" aria-controls="_R_nd_">Platform<svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-triangle-right NavDropdown-module__buttonIcon__Tkl8_" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m6.427 4.427 3.396 3.396a.25.25 0 0 1 0 .354l-3.396 3.396A.25.25 0 0 1 6 11.396V4.604a.25.25 0 0 1 .427-.177Z"></path></svg></button><div id="_R_nd_" class="NavDropdown-module__dropdown__xm1jd"><ul class="NavDropdown-module__list__zuCgG"><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_5knd_">AI CODE CREATION</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_5knd_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/features/copilot" data-analytics-event="{&quot;action&quot;:&quot;github_copilot&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;github_copilot_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD 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1.553.299.305.784.54 1.638.54.922 0 1.28-.198 1.442-.379.179-.2.308-.578.308-1.371 0-.765-.123-1.242-.37-1.554-.233-.296-.693-.587-1.713-.7Z"></path><path d="M6.25 9.037a.75.75 0 0 1 .75.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 .75-.75Zm4.25.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 1.5 0Z"></path></svg>GitHub Copilot</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Write better code with AI</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/features/ai/github-app" data-analytics-event="{&quot;action&quot;:&quot;github_copilot_app&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;github_copilot_app_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon 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class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Direct agents from issue to merge</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/mcp" data-analytics-event="{&quot;action&quot;:&quot;mcp_registry&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;mcp_registry_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-mcp NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M5.52 1.12a3.578 3.578 0 0 1 6.078 2.98 3.578 3.578 0 0 1 2.982 6.08l-3.292 3.293a.252.252 0 0 0 0 .354l.843.843a.749.749 0 1 1-1.06 1.06l-.844-.843a1.75 1.75 0 0 1 0-2.474L13.52 9.12a2.08 2.08 0 0 0 0-2.94 2.08 2.08 0 0 0-2.94 0L7.731 9.03A.75.75 0 0 1 6.67 7.97l2.85-2.85a2.08 2.08 0 0 0 0-2.94 2.08 2.08 0 0 0-2.94 0l-4.799 4.8A.75.75 0 0 1 .72 5.92Z"></path><path d="M7.52 3.12a.749.749 0 1 1 1.06 1.06L5.731 7.03A2.079 2.079 0 0 0 8.67 9.97l2.85-2.85a.749.749 0 1 1 1.06 1.06l-2.849 2.85A3.578 3.578 0 0 1 4.67 5.97Z"></path></svg>MCP Registry</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Integrate external tools</span></span></a></li></ul></div></li><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_9knd_">DEVELOPER WORKFLOWS</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_9knd_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/features/actions" data-analytics-event="{&quot;action&quot;:&quot;actions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;actions_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-workflow NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M0 1.75C0 .784.784 0 1.75 0h3.5C6.216 0 7 .784 7 1.75v3.5A1.75 1.75 0 0 1 5.25 7H4v4a1 1 0 0 0 1 1h4v-1.25C9 9.784 9.784 9 10.75 9h3.5c.966 0 1.75.784 1.75 1.75v3.5A1.75 1.75 0 0 1 14.25 16h-3.5A1.75 1.75 0 0 1 9 14.25v-.75H5A2.5 2.5 0 0 1 2.5 11V7h-.75A1.75 1.75 0 0 1 0 5.25Zm1.75-.25a.25.25 0 0 0-.25.25v3.5c0 .138.112.25.25.25h3.5a.25.25 0 0 0 .25-.25v-3.5a.25.25 0 0 0-.25-.25Zm9 9a.25.25 0 0 0-.25.25v3.5c0 .138.112.25.25.25h3.5a.25.25 0 0 0 .25-.25v-3.5a.25.25 0 0 0-.25-.25Z"></path></svg>Actions</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Automate any workflow</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/features/codespaces" data-analytics-event="{&quot;action&quot;:&quot;codespaces&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;codespaces_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-codespaces NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M0 11.25c0-.966.784-1.75 1.75-1.75h12.5c.966 0 1.75.784 1.75 1.75v3A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25Zm2-9.5C2 .784 2.784 0 3.75 0h8.5C13.216 0 14 .784 14 1.75v5a1.75 1.75 0 0 1-1.75 1.75h-8.5A1.75 1.75 0 0 1 2 6.75Zm1.75-.25a.25.25 0 0 0-.25.25v5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-5a.25.25 0 0 0-.25-.25Zm-2 9.5a.25.25 0 0 0-.25.25v3c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-3a.25.25 0 0 0-.25-.25Z"></path><path d="M7 12.75a.75.75 0 0 1 .75-.75h4.5a.75.75 0 0 1 0 1.5h-4.5a.75.75 0 0 1-.75-.75Zm-4 0a.75.75 0 0 1 .75-.75h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1-.75-.75Z"></path></svg>Codespaces</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Instant dev environments</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/features/issues" 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NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path></svg>Issues</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Plan and track work</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/features/code-review" data-analytics-event="{&quot;action&quot;:&quot;code_review&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;code_review_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-code NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path></svg>Code Review</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Manage code changes</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/features/code-quality" data-analytics-event="{&quot;action&quot;:&quot;code_quality&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;code_quality_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-codescan-checkmark NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M10.28 6.28a.75.75 0 1 0-1.06-1.06L6.25 8.19l-.97-.97a.75.75 0 0 0-1.06 1.06l1.5 1.5a.75.75 0 0 0 1.06 0l3.5-3.5Z"></path><path d="M7.5 15a7.5 7.5 0 1 1 5.807-2.754l2.473 2.474a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215l-2.474-2.473A7.472 7.472 0 0 1 7.5 15Zm0-13.5a6 6 0 1 0 4.094 10.386.748.748 0 0 1 .293-.292 6.002 6.002 0 0 0 1.117-6.486A6.002 6.002 0 0 0 7.5 1.5Z"></path></svg>Code Quality</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Enforce quality at merge</span></span></a></li></ul></div></li><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_dknd_">APPLICATION SECURITY</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_dknd_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/security/advanced-security" data-analytics-event="{&quot;action&quot;:&quot;github_advanced_security&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;github_advanced_security_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ 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1-1.33 0c-2.447-1.042-4.049-2.357-5.032-3.855C1.32 10.182 1 8.566 1 7V3.48a1.75 1.75 0 0 1 1.217-1.667l5.25-1.68a1.748 1.748 0 0 1 1.066 0Zm-.61 1.429.001.001-5.25 1.68a.251.251 0 0 0-.174.237V7c0 1.36.275 2.666 1.057 3.859.784 1.194 2.121 2.342 4.366 3.298a.196.196 0 0 0 .154 0c2.245-.957 3.582-2.103 4.366-3.297C13.225 9.666 13.5 8.358 13.5 7V3.48a.25.25 0 0 0-.174-.238l-5.25-1.68a.25.25 0 0 0-.153 0ZM11.28 6.28l-3.5 3.5a.75.75 0 0 1-1.06 0l-1.5-1.5a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215l.97.97 2.97-2.97a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path></svg>GitHub Advanced Security</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Find and fix vulnerabilities</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/security/advanced-security/code-security" data-analytics-event="{&quot;action&quot;:&quot;code_security&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;code_security_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS 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Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Secure your code as you build</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 NavLink-module__link__EG3d4" href="https://github.com/security/advanced-security/secret-protection" data-analytics-event="{&quot;action&quot;:&quot;secret_protection&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;secret_protection_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-lock NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M4 4a4 4 0 0 1 8 0v2h.25c.966 0 1.75.784 1.75 1.75v5.5A1.75 1.75 0 0 1 12.25 15h-8.5A1.75 1.75 0 0 1 2 13.25v-5.5C2 6.784 2.784 6 3.75 6H4Zm8.25 3.5h-8.5a.25.25 0 0 0-.25.25v5.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-5.5a.25.25 0 0 0-.25-.25ZM10.5 6V4a2.5 2.5 0 1 0-5 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0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path></svg></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/marketplace" data-analytics-event="{&quot;action&quot;:&quot;marketplace&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;platform&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;marketplace_link_platform_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS 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class="Primer_Brand__ExpandableArrow-module__ExpandableArrow___aaZs9 Primer_Brand__Link-module__Link-arrow___yd78i" width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true" focusable="false"><path fill="currentColor" d="M7.28033 3.21967C6.98744 2.92678 6.51256 2.92678 6.21967 3.21967C5.92678 3.51256 5.92678 3.98744 6.21967 4.28033L7.28033 3.21967ZM11 8L11.5303 8.53033C11.8232 8.23744 11.8232 7.76256 11.5303 7.46967L11 8ZM6.21967 11.7197C5.92678 12.0126 5.92678 12.4874 6.21967 12.7803C6.51256 13.0732 6.98744 13.0732 7.28033 12.7803L6.21967 11.7197ZM6.21967 4.28033L10.4697 8.53033L11.5303 7.46967L7.28033 3.21967L6.21967 4.28033ZM10.4697 7.46967L6.21967 11.7197L7.28033 12.7803L11.5303 8.53033L10.4697 7.46967Z"></path><path class="Primer_Brand__ExpandableArrow-module__ExpandableArrow-stem___0K8Hz" stroke="currentColor" d="M1.75 8H11" stroke-width="1.5" stroke-linecap="round"></path></svg></a></div></div></div></li><li><div class="NavDropdown-module__container__l2YeI"><button type="button" class="NavDropdown-module__button__PEHWX" aria-expanded="false" aria-controls="_R_17d_">Solutions<svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-triangle-right NavDropdown-module__buttonIcon__Tkl8_" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m6.427 4.427 3.396 3.396a.25.25 0 0 1 0 .354l-3.396 3.396A.25.25 0 0 1 6 11.396V4.604a.25.25 0 0 1 .427-.177Z"></path></svg></button><div id="_R_17d_" class="NavDropdown-module__dropdown__xm1jd"><ul class="NavDropdown-module__list__zuCgG"><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_5l7d_">BY COMPANY SIZE</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_5l7d_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/enterprise" data-analytics-event="{&quot;action&quot;:&quot;enterprises&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;enterprises_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Enterprises</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/team" data-analytics-event="{&quot;action&quot;:&quot;small_and_medium_teams&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;small_and_medium_teams_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Small and medium teams</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/enterprise/startups" data-analytics-event="{&quot;action&quot;:&quot;startups&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;startups_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Startups</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/industry/nonprofits" data-analytics-event="{&quot;action&quot;:&quot;nonprofits&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;nonprofits_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Nonprofits</span></a></li></ul></div></li><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_9l7d_">BY USE CASE</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_9l7d_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/use-case/app-modernization" data-analytics-event="{&quot;action&quot;:&quot;app_modernization&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;app_modernization_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">App Modernization</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/use-case/devsecops" data-analytics-event="{&quot;action&quot;:&quot;devsecops&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;devsecops_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">DevSecOps</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/use-case/devops" data-analytics-event="{&quot;action&quot;:&quot;devops&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;devops_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">DevOps</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/use-case/ci-cd" data-analytics-event="{&quot;action&quot;:&quot;ci/cd&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;ci/cd_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">CI/CD</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 Primer_Brand__Link-module__Link--arrow-end___esdN8" href="https://github.com/solutions/use-case" data-analytics-event="{&quot;action&quot;:&quot;view_all_use_cases&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;view_all_use_cases_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">View all use cases</span><svg class="Primer_Brand__ExpandableArrow-module__ExpandableArrow___aaZs9 Primer_Brand__Link-module__Link-arrow___yd78i" width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true" focusable="false"><path fill="currentColor" d="M7.28033 3.21967C6.98744 2.92678 6.51256 2.92678 6.21967 3.21967C5.92678 3.51256 5.92678 3.98744 6.21967 4.28033L7.28033 3.21967ZM11 8L11.5303 8.53033C11.8232 8.23744 11.8232 7.76256 11.5303 7.46967L11 8ZM6.21967 11.7197C5.92678 12.0126 5.92678 12.4874 6.21967 12.7803C6.51256 13.0732 6.98744 13.0732 7.28033 12.7803L6.21967 11.7197ZM6.21967 4.28033L10.4697 8.53033L11.5303 7.46967L7.28033 3.21967L6.21967 4.28033ZM10.4697 7.46967L6.21967 11.7197L7.28033 12.7803L11.5303 8.53033L10.4697 7.46967Z"></path><path class="Primer_Brand__ExpandableArrow-module__ExpandableArrow-stem___0K8Hz" stroke="currentColor" d="M1.75 8H11" stroke-width="1.5" stroke-linecap="round"></path></svg></a></li></ul></div></li><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_dl7d_">BY INDUSTRY</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_dl7d_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/industry/healthcare" data-analytics-event="{&quot;action&quot;:&quot;healthcare&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;healthcare_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Healthcare</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/industry/financial-services" data-analytics-event="{&quot;action&quot;:&quot;financial_services&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;financial_services_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Financial services</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/industry/manufacturing" data-analytics-event="{&quot;action&quot;:&quot;manufacturing&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;manufacturing_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Manufacturing</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/solutions/industry/government" data-analytics-event="{&quot;action&quot;:&quot;government&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;government_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Government</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 Primer_Brand__Link-module__Link--arrow-end___esdN8" href="https://github.com/solutions/industry" data-analytics-event="{&quot;action&quot;:&quot;view_all_industries&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;view_all_industries_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">View all industries</span><svg class="Primer_Brand__ExpandableArrow-module__ExpandableArrow___aaZs9 Primer_Brand__Link-module__Link-arrow___yd78i" width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true" focusable="false"><path fill="currentColor" d="M7.28033 3.21967C6.98744 2.92678 6.51256 2.92678 6.21967 3.21967C5.92678 3.51256 5.92678 3.98744 6.21967 4.28033L7.28033 3.21967ZM11 8L11.5303 8.53033C11.8232 8.23744 11.8232 7.76256 11.5303 7.46967L11 8ZM6.21967 11.7197C5.92678 12.0126 5.92678 12.4874 6.21967 12.7803C6.51256 13.0732 6.98744 13.0732 7.28033 12.7803L6.21967 11.7197ZM6.21967 4.28033L10.4697 8.53033L11.5303 7.46967L7.28033 3.21967L6.21967 4.28033ZM10.4697 7.46967L6.21967 11.7197L7.28033 12.7803L11.5303 8.53033L10.4697 7.46967Z"></path><path class="Primer_Brand__ExpandableArrow-module__ExpandableArrow-stem___0K8Hz" stroke="currentColor" d="M1.75 8H11" stroke-width="1.5" stroke-linecap="round"></path></svg></a></li></ul></div></li></ul><div class="NavDropdown-module__trailingLinkContainer__VgJGL"><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 Primer_Brand__Link-module__Link--arrow-end___esdN8" href="https://github.com/solutions" data-analytics-event="{&quot;action&quot;:&quot;view_all_solutions&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;solutions&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;view_all_solutions_link_solutions_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">View all solutions</span><svg class="Primer_Brand__ExpandableArrow-module__ExpandableArrow___aaZs9 Primer_Brand__Link-module__Link-arrow___yd78i" width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true" focusable="false"><path fill="currentColor" d="M7.28033 3.21967C6.98744 2.92678 6.51256 2.92678 6.21967 3.21967C5.92678 3.51256 5.92678 3.98744 6.21967 4.28033L7.28033 3.21967ZM11 8L11.5303 8.53033C11.8232 8.23744 11.8232 7.76256 11.5303 7.46967L11 8ZM6.21967 11.7197C5.92678 12.0126 5.92678 12.4874 6.21967 12.7803C6.51256 13.0732 6.98744 13.0732 7.28033 12.7803L6.21967 11.7197ZM6.21967 4.28033L10.4697 8.53033L11.5303 7.46967L7.28033 3.21967L6.21967 4.28033ZM10.4697 7.46967L6.21967 11.7197L7.28033 12.7803L11.5303 8.53033L10.4697 7.46967Z"></path><path class="Primer_Brand__ExpandableArrow-module__ExpandableArrow-stem___0K8Hz" stroke="currentColor" d="M1.75 8H11" stroke-width="1.5" stroke-linecap="round"></path></svg></a></div></div></div></li><li><div class="NavDropdown-module__container__l2YeI"><button type="button" class="NavDropdown-module__button__PEHWX" aria-expanded="false" aria-controls="_R_1nd_">Resources<svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-triangle-right NavDropdown-module__buttonIcon__Tkl8_" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m6.427 4.427 3.396 3.396a.25.25 0 0 1 0 .354l-3.396 3.396A.25.25 0 0 1 6 11.396V4.604a.25.25 0 0 1 .427-.177Z"></path></svg></button><div id="_R_1nd_" class="NavDropdown-module__dropdown__xm1jd"><ul class="NavDropdown-module__list__zuCgG"><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_5lnd_">EXPLORE BY TOPIC</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_5lnd_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/resources/articles?topic=ai" data-analytics-event="{&quot;action&quot;:&quot;ai&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;ai_link_resources_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">AI</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/resources/articles?topic=software-development" data-analytics-event="{&quot;action&quot;:&quot;software_development&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;software_development_link_resources_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Software Development</span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/resources/articles?topic=devops" data-analytics-event="{&quot;action&quot;:&quot;devops&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;devops_link_resources_navbar&quot;}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS 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itemprop=\"text\"\u003e\u003cp align=\"center\" dir=\"auto\"\u003e\n\u003ca href=\"https://www.programmercarl.com/xunlian/xunlianying.html\" rel=\"nofollow\"\u003e\n  \u003cimg src=\"/feinan/leetcode-master/raw/master/pics/训练营.png\" width=\"1000\" style=\"max-width: 100%;\"\u003e\n\u003c/a\u003e\n\u003c/p\u003e\u003cp align=\"center\" dir=\"auto\"\u003e\u003cstrong\u003e\u003ca href=\"/feinan/leetcode-master/blob/master/problems/qita/join.md\"\u003e参与本项目\u003c/a\u003e，贡献其他语言版本的代码，拥抱开源，让更多学习算法的小伙伴们受益！\u003c/strong\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e1035.不相交的线\u003c/h1\u003e\u003ca id=\"user-content-1035不相交的线\" class=\"anchor\" aria-label=\"Permalink: 1035.不相交的线\" href=\"#1035不相交的线\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://leetcode.cn/problems/uncrossed-lines/\" rel=\"nofollow\"\u003e力扣题目链接\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e我们在两条独立的水平线上按给定的顺序写下 A 和 B 中的整数。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e现在，我们可以绘制一些连接两个数字 A[i] 和 B[j] 的直线，只要 A[i] == B[j]，且我们绘制的直线不与任何其他连线（非水平线）相交。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e以这种方法绘制线条，并返回我们可以绘制的最大连线数。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://camo.githubusercontent.com/a6e8b0945ddcc2d7167a669664b9c7b4b99f3d8136f5c3029ec6ff4705a27910/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f323032313033323131363336333533332e706e67\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/a6e8b0945ddcc2d7167a669664b9c7b4b99f3d8136f5c3029ec6ff4705a27910/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f323032313033323131363336333533332e706e67\" alt=\"1035.不相交的线\" data-canonical-src=\"https://code-thinking-1253855093.file.myqcloud.com/pics/2021032116363533.png\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e算法公开课\u003c/h2\u003e\u003ca id=\"user-content-算法公开课\" class=\"anchor\" aria-label=\"Permalink: 算法公开课\" href=\"#算法公开课\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e\u003ca href=\"https://programmercarl.com/other/gongkaike.html\" rel=\"nofollow\"\u003e《代码随想录》算法视频公开课\u003c/a\u003e：\u003ca href=\"https://www.bilibili.com/video/BV1h84y1x7MP\" rel=\"nofollow\"\u003e动态规划之子序列问题，换汤不换药 | LeetCode：1035.不相交的线\u003c/a\u003e，相信结合视频再看本篇题解，更有助于大家对本题的理解\u003c/strong\u003e。\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e思路\u003c/h2\u003e\u003ca id=\"user-content-思路\" class=\"anchor\" aria-label=\"Permalink: 思路\" href=\"#思路\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e相信不少录友看到这道题目都没啥思路，我们来逐步分析一下。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e绘制一些连接两个数字 A[i] 和 B[j] 的直线，只要 A[i] == B[j]，且直线不能相交！\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e直线不能相交，这就是说明在字符串A中 找到一个与字符串B相同的子序列，且这个子序列不能改变相对顺序，只要相对顺序不改变，链接相同数字的直线就不会相交。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e拿示例一A = [1,4,2], B = [1,2,4]为例，相交情况如图：\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://camo.githubusercontent.com/e8e6dcbc9be664feb01259b373576e5d9c531b90b7ded4e4bba74e55780bb804/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f32303231303931343134353135382e706e67\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/e8e6dcbc9be664feb01259b373576e5d9c531b90b7ded4e4bba74e55780bb804/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f32303231303931343134353135382e706e67\" alt=\"\" data-canonical-src=\"https://code-thinking-1253855093.file.myqcloud.com/pics/20210914145158.png\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e其实也就是说A和B的最长公共子序列是[1,4]，长度为2。 这个公共子序列指的是相对顺序不变（即数字4在字符串A中数字1的后面，那么数字4也应该在字符串B数字1的后面）\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e这么分析完之后，大家可以发现：\u003cstrong\u003e本题说是求绘制的最大连线数，其实就是求两个字符串的最长公共子序列的长度！\u003c/strong\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e那么本题就和我们刚刚讲过的这道题目\u003ca href=\"https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html\" rel=\"nofollow\"\u003e动态规划：1143.最长公共子序列\u003c/a\u003e就是一样一样的了。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e一样到什么程度呢？ 把字符串名字改一下，其他代码都不用改，直接copy过来就行了。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e其实本题就是求最长公共子序列的长度，介于我们刚刚讲过\u003ca href=\"https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html\" rel=\"nofollow\"\u003e动态规划：1143.最长公共子序列\u003c/a\u003e，所以本题我就不再做动规五部曲分析了。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e如果大家有点遗忘了最长公共子序列，就再看一下这篇：\u003ca href=\"https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html\" rel=\"nofollow\"\u003e动态规划：1143.最长公共子序列\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e本题代码如下：\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-c++ notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"class Solution {\npublic:\n    int maxUncrossedLines(vector\u0026lt;int\u0026gt;\u0026amp; A, vector\u0026lt;int\u0026gt;\u0026amp; B) {\n        vector\u0026lt;vector\u0026lt;int\u0026gt;\u0026gt; dp(A.size() + 1, vector\u0026lt;int\u0026gt;(B.size() + 1, 0));\n        for (int i = 1; i \u0026lt;= A.size(); i++) {\n            for (int j = 1; j \u0026lt;= B.size(); j++) {\n                if (A[i - 1] == B[j - 1]) {\n                    dp[i][j] = dp[i - 1][j - 1] + 1;\n                } else {\n                    dp[i][j] = max(dp[i - 1][j], dp[i][j - 1]);\n                }\n            }\n        }\n        return dp[A.size()][B.size()];\n    }\n};\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eclass\u003c/span\u003e \u003cspan class=\"pl-en\"\u003eSolution\u003c/span\u003e {\n\u003cspan class=\"pl-k\"\u003epublic:\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emaxUncrossedLines\u003c/span\u003e(vector\u0026lt;\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e\u0026gt;\u0026amp; A, vector\u0026lt;\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e\u0026gt;\u0026amp; B) {\n        vector\u0026lt;vector\u0026lt;\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e\u0026gt;\u0026gt; \u003cspan class=\"pl-c1\"\u003edp\u003c/span\u003e(A.\u003cspan class=\"pl-c1\"\u003esize\u003c/span\u003e() + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e, vector\u0026lt;\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e\u0026gt;(B.\u003cspan class=\"pl-c1\"\u003esize\u003c/span\u003e() + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e, \u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e));\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e (\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e i = \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e; i \u0026lt;= A.\u003cspan class=\"pl-c1\"\u003esize\u003c/span\u003e(); i++) {\n            \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e (\u003cspan class=\"pl-k\"\u003eint\u003c/span\u003e j = \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e; j \u0026lt;= B.\u003cspan class=\"pl-c1\"\u003esize\u003c/span\u003e(); j++) {\n                \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e (A[i - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] == B[j - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]) {\n                    dp[i][j] = dp[i - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][j - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e;\n                } \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e {\n                    dp[i][j] = \u003cspan class=\"pl-c1\"\u003emax\u003c/span\u003e(dp[i - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][j], dp[i][j - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]);\n                }\n            }\n        }\n        \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e dp[A.\u003cspan class=\"pl-c1\"\u003esize\u003c/span\u003e()][B.\u003cspan class=\"pl-c1\"\u003esize\u003c/span\u003e()];\n    }\n};\u003c/pre\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e时间复杂度: O(n * m)\u003c/li\u003e\n\u003cli\u003e空间复杂度: O(n * m)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e总结\u003c/h2\u003e\u003ca id=\"user-content-总结\" class=\"anchor\" aria-label=\"Permalink: 总结\" href=\"#总结\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e看到代码大家也可以发现其实就是求两个字符串的最长公共子序列，但如果没有做过\u003ca href=\"https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html\" rel=\"nofollow\"\u003e1143.最长公共子序列\u003c/a\u003e，本题其实还有很有难度的。\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e这是Carl为什么要先讲\u003ca href=\"https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html\" rel=\"nofollow\"\u003e1143.最长公共子序列\u003c/a\u003e再讲本题，大家会发现一个正确的刷题顺序对算法学习是非常重要的！\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e这也是Carl做了很多题目（包括ACM和力扣）才总结出来的规律，大家仔细体会一下哈。\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e其他语言版本\u003c/h2\u003e\u003ca id=\"user-content-其他语言版本\" class=\"anchor\" aria-label=\"Permalink: 其他语言版本\" href=\"#其他语言版本\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eJava：\u003c/h3\u003e\u003ca id=\"user-content-java\" class=\"anchor\" aria-label=\"Permalink: Java：\" href=\"#java\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-java notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"  class Solution {\n    public int maxUncrossedLines(int[] nums1, int[] nums2) {\n        int len1 = nums1.length;\n        int len2 = nums2.length;\n        int[][] dp = new int[len1 + 1][len2 + 1];\n\n        for (int i = 1; i \u0026lt;= len1; i++) {\n            for (int j = 1; j \u0026lt;= len2; j++) {\n                if (nums1[i - 1] == nums2[j - 1]) {\n                    dp[i][j] = dp[i - 1][j - 1] + 1;\n                } else {\n                    dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);\n                }\n            }\n        }\n\n        return dp[len1][len2];\n    }\n}\"\u003e\u003cpre\u003e  \u003cspan class=\"pl-k\"\u003eclass\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eSolution\u003c/span\u003e {\n    \u003cspan class=\"pl-k\"\u003epublic\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emaxUncrossedLines\u003c/span\u003e(\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e[] \u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e, \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e[] \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e) {\n        \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen1\u003c/span\u003e = \u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e.\u003cspan class=\"pl-s1\"\u003elength\u003c/span\u003e;\n        \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e = \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e.\u003cspan class=\"pl-s1\"\u003elength\u003c/span\u003e;\n        \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e[][] \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e = \u003cspan class=\"pl-k\"\u003enew\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003elen1\u003c/span\u003e + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e];\n\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e (\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e = \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e; \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u0026lt;= \u003cspan class=\"pl-s1\"\u003elen1\u003c/span\u003e; \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e++) {\n            \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e (\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e = \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e; \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u0026lt;= \u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e; \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e++) {\n                \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e (\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] == \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]) {\n                    \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e] = \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e;\n                } \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e {\n                    \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e] = \u003cspan class=\"pl-smi\"\u003eMath\u003c/span\u003e.\u003cspan class=\"pl-en\"\u003emax\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e], \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e - \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]);\n                }\n            }\n        }\n\n        \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003elen1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e];\n    }\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003ePython：\u003c/h3\u003e\u003ca id=\"user-content-python\" class=\"anchor\" aria-label=\"Permalink: Python：\" href=\"#python\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-python notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"class Solution:\n    def maxUncrossedLines(self, A: List[int], B: List[int]) -\u0026gt; int:\n        dp = [[0] * (len(B)+1) for _ in range(len(A)+1)]\n        for i in range(1, len(A)+1):\n            for j in range(1, len(B)+1):\n                if A[i-1] == B[j-1]:\n                    dp[i][j] = dp[i-1][j-1] + 1\n                else:\n                    dp[i][j] = max(dp[i-1][j], dp[i][j-1])\n        return dp[-1][-1]\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eclass\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eSolution\u003c/span\u003e:\n    \u003cspan class=\"pl-k\"\u003edef\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emaxUncrossedLines\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003eself\u003c/span\u003e, \u003cspan class=\"pl-c1\"\u003eA\u003c/span\u003e: \u003cspan class=\"pl-v\"\u003eList\u003c/span\u003e[\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e], \u003cspan class=\"pl-c1\"\u003eB\u003c/span\u003e: \u003cspan class=\"pl-v\"\u003eList\u003c/span\u003e[\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e]) \u003cspan class=\"pl-c1\"\u003e-\u0026gt;\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e:\n        \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e [[\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e*\u003c/span\u003e (\u003cspan class=\"pl-en\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-c1\"\u003eB\u003c/span\u003e)\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e) \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003e_\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003ein\u003c/span\u003e \u003cspan class=\"pl-en\"\u003erange\u003c/span\u003e(\u003cspan class=\"pl-en\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-c1\"\u003eA\u003c/span\u003e)\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e)]\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003ein\u003c/span\u003e \u003cspan class=\"pl-en\"\u003erange\u003c/span\u003e(\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e, \u003cspan class=\"pl-en\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-c1\"\u003eA\u003c/span\u003e)\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e):\n            \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003ein\u003c/span\u003e \u003cspan class=\"pl-en\"\u003erange\u003c/span\u003e(\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e, \u003cspan class=\"pl-en\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-c1\"\u003eB\u003c/span\u003e)\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e):\n                \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003eA\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e==\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003eB\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]:\n                    \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\n                \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e:\n                    \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emax\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e], \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e])\n        \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eGo:\u003c/h3\u003e\u003ca id=\"user-content-go\" class=\"anchor\" aria-label=\"Permalink: Go:\" href=\"#go\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func maxUncrossedLines(A []int, B []int) int {\n\tm, n := len(A), len(B)\n\tdp := make([][]int, m+1)\n    for i := range dp {\n        dp[i] = make([]int, n+1)\n    }\n\n\tfor i := 1; i \u0026lt;= len(A); i++ {\n\t\tfor j := 1; j \u0026lt;= len(B); j++ {\n\t\t\tif (A[i - 1] == B[j - 1]) {\n\t\t\t\tdp[i][j] = dp[i - 1][j - 1] + 1\n\t\t\t} else {\n\t\t\t\tdp[i][j] = max(dp[i - 1][j], dp[i][j - 1])\n\t\t\t}\n\t\t}\n\t}\n\treturn dp[m][n]\n\n}\n\nfunc max(a, b int) int {\n    if a \u0026gt; b {\n        return a\n    }\n    return b\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003emaxUncrossedLines\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003eA\u003c/span\u003e []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e, \u003cspan class=\"pl-s1\"\u003eB\u003c/span\u003e []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n\t\u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e, \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003eA\u003c/span\u003e), \u003cspan class=\"pl-s1\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003eB\u003c/span\u003e)\n\t\u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003emake\u003c/span\u003e([][]\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e, \u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e)\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003erange\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e {\n        \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003emake\u003c/span\u003e([]\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e, \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e)\n    }\n\n\t\u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e; \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003eA\u003c/span\u003e); \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e {\n\t\t\u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e; \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003eB\u003c/span\u003e); \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e {\n\t\t\t\u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e (\u003cspan class=\"pl-s1\"\u003eA\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e==\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eB\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]) {\n\t\t\t\t\u003cspan class=\"pl-smi\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-smi\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-smi\"\u003ej\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\n\t\t\t} \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e {\n\t\t\t\t\u003cspan class=\"pl-smi\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-smi\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-smi\"\u003ej\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003emax\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e], \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e][\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e])\n\t\t\t}\n\t\t}\n\t}\n\t\u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003edp\u003c/span\u003e[\u003cspan class=\"pl-smi\"\u003em\u003c/span\u003e][\u003cspan class=\"pl-smi\"\u003en\u003c/span\u003e]\n\n}\n\n\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003emax\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003ea\u003c/span\u003e, \u003cspan class=\"pl-s1\"\u003eb\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n    \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ea\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026gt;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eb\u003c/span\u003e {\n        \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ea\u003c/span\u003e\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eb\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eRust:\u003c/h3\u003e\u003ca id=\"user-content-rust\" class=\"anchor\" aria-label=\"Permalink: Rust:\" href=\"#rust\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"impl Solution {\n    pub fn max_uncrossed_lines(nums1: Vec\u0026lt;i32\u0026gt;, nums2: Vec\u0026lt;i32\u0026gt;) -\u0026gt; i32 {\n        let mut dp = vec![vec![0; nums2.len() + 1]; nums1.len() + 1];\n        for (i, num1) in nums1.iter().enumerate() {\n            for (j, num2) in nums2.iter().enumerate() {\n                if num1 == num2 {\n                    dp[i + 1][j + 1] = dp[i][j] + 1;\n                } else {\n                    dp[i + 1][j + 1] = dp[i][j + 1].max(dp[i + 1][j]);\n                }\n            }\n        }\n        dp[nums1.len()][nums2.len()]\n    }\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eimpl\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eSolution\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003epub\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efn\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emax_uncrossed_lines\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e:\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eVec\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ei32\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e:\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eVec\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ei32\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e -\u0026gt; \u003cspan class=\"pl-smi\"\u003ei32\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e dp = \u003cspan class=\"pl-en\"\u003evec\u003c/span\u003e\u003cspan class=\"pl-en\"\u003e!\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003evec!\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e nums2\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003elen\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e nums1\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003elen\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ei\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e num1\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-k\"\u003ein\u003c/span\u003e nums1\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eiter\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eenumerate\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n            \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ej\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e num2\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-k\"\u003ein\u003c/span\u003e nums2\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eiter\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eenumerate\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e num1 == num2 \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                    dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ei + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e = dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ei\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n                \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                    dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ei + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e = dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ei\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003emax\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003edp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ei + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n                \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n            \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n        \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n        dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003enums1\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elen\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003enums2\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elen\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\n    \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e滚动数组\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"impl Solution {\n    pub fn max_uncrossed_lines(nums1: Vec\u0026lt;i32\u0026gt;, nums2: Vec\u0026lt;i32\u0026gt;) -\u0026gt; i32 {\n        let mut dp = vec![0; nums2.len() + 1];\n        for num1 in nums1 {\n            let mut prev = 0;\n            for (j, \u0026amp;num2) in nums2.iter().enumerate() {\n                let temp = dp[j + 1];\n                if num1 == num2 {\n                    // 使用上一次的状态，防止重复计算\n                    dp[j + 1] = prev + 1;\n                } else {\n                    dp[j + 1] = dp[j + 1].max(dp[j]);\n                }\n                prev = temp;\n            }\n        }\n        dp[nums2.len()]\n    }\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eimpl\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eSolution\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003epub\u003c/span\u003e \u003cspan class=\"pl-k\"\u003efn\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emax_uncrossed_lines\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e:\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eVec\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ei32\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e:\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eVec\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003ei32\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e\u0026gt;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e -\u0026gt; \u003cspan class=\"pl-smi\"\u003ei32\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e dp = \u003cspan class=\"pl-en\"\u003evec\u003c/span\u003e\u003cspan class=\"pl-en\"\u003e!\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e nums2\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003elen\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e num1 \u003cspan class=\"pl-k\"\u003ein\u003c/span\u003e nums1 \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n            \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e prev = \u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n            \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ej\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003enum2\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-k\"\u003ein\u003c/span\u003e nums2\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eiter\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eenumerate\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e temp = dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n                \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e num1 == num2 \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                    \u003cspan class=\"pl-c\"\u003e// 使用上一次的状态，防止重复计算\u003c/span\u003e\n                    dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e = prev + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n                \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                    dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e = dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej + \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003emax\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003edp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003ej\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n                \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n                prev = temp\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n            \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n        \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n        dp\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003enums2\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elen\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\n    \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eJavaScript：\u003c/h3\u003e\u003ca id=\"user-content-javascript\" class=\"anchor\" aria-label=\"Permalink: JavaScript：\" href=\"#javascript\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-js notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"const maxUncrossedLines = (nums1, nums2) =\u0026gt; {\n    // 两个数组长度\n    const [m, n] = [nums1.length, nums2.length];\n    // 创建dp数组并都初始化为0\n    const dp = new Array(m + 1).fill(0).map(x =\u0026gt; new Array(n + 1).fill(0));\n    for (let i = 1; i \u0026lt;= m; i++) {\n        for (let j = 1; j \u0026lt;= n; j++) {\n            // 根据两种情况更新dp[i][j]\n            if (nums1[i - 1] === nums2[j - 1]) {\n                dp[i][j] = dp[i - 1][j - 1] + 1;\n            } else {\n                dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);\n            }\n        }\n    }\n    // 返回dp数组中右下角的元素\n    return dp[m][n];\n};\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emaxUncrossedLines\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u0026gt;\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// 两个数组长度\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003elength\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003elength\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// 创建dp数组并都初始化为0\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003enew\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eArray\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003efill\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003emap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ex\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u0026gt;\u003c/span\u003e \u003cspan class=\"pl-k\"\u003enew\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eArray\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003efill\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n            \u003cspan class=\"pl-c\"\u003e// 根据两种情况更新dp[i][j]\u003c/span\u003e\n            \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e===\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n            \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eMath\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003emax\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n            \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n        \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n    \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// 返回dp数组中右下角的元素\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eTypeScript：\u003c/h3\u003e\u003ca id=\"user-content-typescript\" class=\"anchor\" aria-label=\"Permalink: TypeScript：\" href=\"#typescript\"\u003e\u003csvg data-component=\"Octicon\" class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e二维数组\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-ts notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"function maxUncrossedLines(nums1: number[], nums2: number[]): number {\n    /**\n        dp[i][j]: nums1前i-1个，nums2前j-1个，最大连线数\n     */\n    const length1: number = nums1.length,\n        length2: number = nums2.length;\n    const dp: number[][] = new Array(length1 + 1).fill(0)\n        .map(_ =\u0026gt; new Array(length2 + 1).fill(0));\n    for (let i = 1; i \u0026lt;= length1; i++) {\n        for (let j = 1; j \u0026lt;= length2; j++) {\n            if (nums1[i - 1] === nums2[j - 1]) {\n                dp[i][j] = dp[i - 1][j - 1] + 1;\n            } else {\n                dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);\n            }\n        }\n    }\n    return dp[length1][length2];\n};\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emaxUncrossedLines\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e/**\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e        dp[i][j]: nums1前i-1个，nums2前j-1个，最大连线数\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e     */\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elength1\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003elength\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n        \u003cspan class=\"pl-s1\"\u003elength2\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003elength\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003enew\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eArray\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003elength1\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003efill\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n        \u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003emap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003e_\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u0026gt;\u003c/span\u003e \u003cspan class=\"pl-k\"\u003enew\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eArray\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003elength2\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003efill\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elength1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elength2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n            \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e===\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n            \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n                \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eMath\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003emax\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n            \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n        \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n    \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003elength1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003elength2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e滚动数组\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-ts notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"function maxUncrossedLines(nums1: number[], nums2: number[]): number {\n    const len1 = nums1.length\n    const len2 = nums2.length\n\n    const dp: number[] = new Array(len2 + 1).fill(0)\n\n    for (let i = 1; i \u0026lt;= len1; i++) {\n        let prev: number = 0;\n        let temp: number = 0;\n        for (let j = 1; j \u0026lt;= len2; j++) {\n            // 备份一下当前状态（经过上层迭代后的）\n            temp = dp[j]\n            // prev 相当于 dp[j-1]（累加了上层的状态）\n            // 如果单纯 dp[j-1] 则不会包含上层状态\n            if (nums1[i - 1] === nums2[j - 1]) dp[j] = prev + 1\n            // dp[j] 表示之前的 dp[i][j-1]，dp[j-1] 表示 dp[i-1][j]\n            else dp[j] = Math.max(dp[j], dp[j - 1])\n            // 继续使用上一层状态更新参数用于当前层下一个状态\n            prev = temp\n        }\n    }\n    return dp[len2]\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunction\u003c/span\u003e \u003cspan class=\"pl-en\"\u003emaxUncrossedLines\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen1\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003elength\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003elength\u003c/span\u003e\n\n    \u003cspan class=\"pl-k\"\u003econst\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-k\"\u003enew\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eArray\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003efill\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eprev\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003etemp\u003c/span\u003e: \u003cspan class=\"pl-smi\"\u003enumber\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n        \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n            \u003cspan class=\"pl-c\"\u003e// 备份一下当前状态（经过上层迭代后的）\u003c/span\u003e\n            \u003cspan class=\"pl-s1\"\u003etemp\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\n            \u003cspan class=\"pl-c\"\u003e// prev 相当于 dp[j-1]（累加了上层的状态）\u003c/span\u003e\n            \u003cspan class=\"pl-c\"\u003e// 如果单纯 dp[j-1] 则不会包含上层状态\u003c/span\u003e\n            \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e===\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enums2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eprev\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\n            \u003cspan class=\"pl-c\"\u003e// dp[j] 表示之前的 dp[i][j-1]，dp[j-1] 表示 dp[i-1][j]\u003c/span\u003e\n            \u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eMath\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003emax\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\n            \u003cspan class=\"pl-c\"\u003e// 继续使用上一层状态更新参数用于当前层下一个状态\u003c/span\u003e\n            \u003cspan class=\"pl-s1\"\u003eprev\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003etemp\u003c/span\u003e\n        \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n    \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003edp\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003elen2\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp align=\"center\" dir=\"auto\"\u003e\n\u003ca href=\"https://programmercarl.com/other/kstar.html\" rel=\"nofollow\"\u003e\n  \u003cimg src=\"/feinan/leetcode-master/raw/master/pics/网站星球宣传海报.jpg\" width=\"1000\" style=\"max-width: 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align=\"center\"\u003e","\u003ca href=\"https://www.programmercarl.com/xunlian/xunlianying.html\" target=\"_blank\"\u003e","  \u003cimg src=\"../pics/训练营.png\" width=\"1000\"/\u003e","\u003c/a\u003e","\u003cp align=\"center\"\u003e\u003cstrong\u003e\u003ca href=\"./qita/join.md\"\u003e参与本项目\u003c/a\u003e，贡献其他语言版本的代码，拥抱开源，让更多学习算法的小伙伴们受益！\u003c/strong\u003e\u003c/p\u003e","","# 1035.不相交的线","","[力扣题目链接](https://leetcode.cn/problems/uncrossed-lines/)","","我们在两条独立的水平线上按给定的顺序写下 A 和 B 中的整数。","","现在，我们可以绘制一些连接两个数字 A[i] 和 B[j] 的直线，只要 A[i] == B[j]，且我们绘制的直线不与任何其他连线（非水平线）相交。","","以这种方法绘制线条，并返回我们可以绘制的最大连线数。","","","![1035.不相交的线](https://code-thinking-1253855093.file.myqcloud.com/pics/2021032116363533.png)","","## 算法公开课","","**[《代码随想录》算法视频公开课](https://programmercarl.com/other/gongkaike.html)：[动态规划之子序列问题，换汤不换药 | LeetCode：1035.不相交的线](https://www.bilibili.com/video/BV1h84y1x7MP)，相信结合视频再看本篇题解，更有助于大家对本题的理解**。","","","## 思路","","相信不少录友看到这道题目都没啥思路，我们来逐步分析一下。","","绘制一些连接两个数字 A[i] 和 B[j] 的直线，只要 A[i] == B[j]，且直线不能相交！","","直线不能相交，这就是说明在字符串A中 找到一个与字符串B相同的子序列，且这个子序列不能改变相对顺序，只要相对顺序不改变，链接相同数字的直线就不会相交。","","拿示例一A = [1,4,2], B = [1,2,4]为例，相交情况如图：","","","![](https://code-thinking-1253855093.file.myqcloud.com/pics/20210914145158.png)","","其实也就是说A和B的最长公共子序列是[1,4]，长度为2。 这个公共子序列指的是相对顺序不变（即数字4在字符串A中数字1的后面，那么数字4也应该在字符串B数字1的后面）","","这么分析完之后，大家可以发现：**本题说是求绘制的最大连线数，其实就是求两个字符串的最长公共子序列的长度！**","","那么本题就和我们刚刚讲过的这道题目[动态规划：1143.最长公共子序列](https://programmercarl.com/1143.最长公共子序列.html)就是一样一样的了。","","一样到什么程度呢？ 把字符串名字改一下，其他代码都不用改，直接copy过来就行了。","","其实本题就是求最长公共子序列的长度，介于我们刚刚讲过[动态规划：1143.最长公共子序列](https://programmercarl.com/1143.最长公共子序列.html)，所以本题我就不再做动规五部曲分析了。","","如果大家有点遗忘了最长公共子序列，就再看一下这篇：[动态规划：1143.最长公共子序列](https://programmercarl.com/1143.最长公共子序列.html)","","本题代码如下：","","```CPP","class Solution {","public:","    int maxUncrossedLines(vector\u003cint\u003e\u0026 A, vector\u003cint\u003e\u0026 B) {","        vector\u003cvector\u003cint\u003e\u003e dp(A.size() + 1, vector\u003cint\u003e(B.size() + 1, 0));","        for (int i = 1; i \u003c= A.size(); i++) {","            for (int j = 1; j \u003c= B.size(); j++) {","                if (A[i - 1] == B[j - 1]) {","                    dp[i][j] = dp[i - 1][j - 1] + 1;","                } else {","                    dp[i][j] = max(dp[i - 1][j], dp[i][j - 1]);","                }","            }","        }","        return dp[A.size()][B.size()];","    }","};","```","* 时间复杂度: O(n * m)","* 空间复杂度: O(n * m)","","","","## 总结","","看到代码大家也可以发现其实就是求两个字符串的最长公共子序列，但如果没有做过[1143.最长公共子序列](https://programmercarl.com/1143.最长公共子序列.html)，本题其实还有很有难度的。","","这是Carl为什么要先讲[1143.最长公共子序列](https://programmercarl.com/1143.最长公共子序列.html)再讲本题，大家会发现一个正确的刷题顺序对算法学习是非常重要的！","","这也是Carl做了很多题目（包括ACM和力扣）才总结出来的规律，大家仔细体会一下哈。","","## 其他语言版本","","### Java：","","```java","  class Solution {","    public int maxUncrossedLines(int[] nums1, int[] nums2) {","        int len1 = nums1.length;","        int len2 = nums2.length;","        int[][] dp = new int[len1 + 1][len2 + 1];","","        for (int i = 1; i \u003c= len1; i++) {","            for (int j = 1; j \u003c= len2; j++) {","                if (nums1[i - 1] == nums2[j - 1]) {","                    dp[i][j] = dp[i - 1][j - 1] + 1;","                } else {","                    dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);","                }","            }","        }","","        return dp[len1][len2];","    }","}","```","","### Python：","","```python","class Solution:","    def maxUncrossedLines(self, A: List[int], B: List[int]) -\u003e int:","        dp = [[0] * (len(B)+1) for _ in range(len(A)+1)]","        for i in range(1, len(A)+1):","            for j in range(1, len(B)+1):","                if A[i-1] == B[j-1]:","                    dp[i][j] = dp[i-1][j-1] + 1","                else:","                    dp[i][j] = max(dp[i-1][j], dp[i][j-1])","        return dp[-1][-1]","```","","### Go:","","```go","func maxUncrossedLines(A []int, B []int) int {","\tm, n := len(A), len(B)","\tdp := make([][]int, m+1)","    for i := range dp {","        dp[i] = make([]int, n+1)","    }","","\tfor i := 1; i \u003c= len(A); i++ {","\t\tfor j := 1; j \u003c= len(B); j++ {","\t\t\tif (A[i - 1] == B[j - 1]) {","\t\t\t\tdp[i][j] = dp[i - 1][j - 1] + 1","\t\t\t} else {","\t\t\t\tdp[i][j] = max(dp[i - 1][j], dp[i][j - 1])","\t\t\t}","\t\t}","\t}","\treturn dp[m][n]","","}","","func max(a, b int) int {","    if a \u003e b {","        return a","    }","    return b","}","```","","### Rust:","","```rust","impl Solution {","    pub fn max_uncrossed_lines(nums1: Vec\u003ci32\u003e, nums2: Vec\u003ci32\u003e) -\u003e i32 {","        let mut dp = vec![vec![0; nums2.len() + 1]; nums1.len() + 1];","        for (i, num1) in nums1.iter().enumerate() {","            for (j, num2) in nums2.iter().enumerate() {","                if num1 == num2 {","                    dp[i + 1][j + 1] = dp[i][j] + 1;","                } else {","                    dp[i + 1][j + 1] = dp[i][j + 1].max(dp[i + 1][j]);","                }","            }","        }","        dp[nums1.len()][nums2.len()]","    }","}","```","","\u003e 滚动数组","","```rust","impl Solution {","    pub fn max_uncrossed_lines(nums1: Vec\u003ci32\u003e, nums2: Vec\u003ci32\u003e) -\u003e i32 {","        let mut dp = vec![0; nums2.len() + 1];","        for num1 in nums1 {","            let mut prev = 0;","            for (j, \u0026num2) in nums2.iter().enumerate() {","                let temp = dp[j + 1];","                if num1 == num2 {","                    // 使用上一次的状态，防止重复计算","                    dp[j + 1] = prev + 1;","                } else {","                    dp[j + 1] = dp[j + 1].max(dp[j]);","                }","                prev = temp;","            }","        }","        dp[nums2.len()]","    }","}","```","","### JavaScript：","","```javascript","const maxUncrossedLines = (nums1, nums2) =\u003e {","    // 两个数组长度","    const [m, n] = [nums1.length, nums2.length];","    // 创建dp数组并都初始化为0","    const dp = new Array(m + 1).fill(0).map(x =\u003e new Array(n + 1).fill(0));","    for (let i = 1; i \u003c= m; i++) {","        for (let j = 1; j \u003c= n; j++) {","            // 根据两种情况更新dp[i][j]","            if (nums1[i - 1] === nums2[j - 1]) {","                dp[i][j] = dp[i - 1][j - 1] + 1;","            } else {","                dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);","            }","        }","    }","    // 返回dp数组中右下角的元素","    return dp[m][n];","};","```","","### TypeScript：","","\u003e 二维数组","","```typescript","function maxUncrossedLines(nums1: number[], nums2: number[]): number {","    /**","        dp[i][j]: nums1前i-1个，nums2前j-1个，最大连线数","     */","    const length1: number = nums1.length,","        length2: number = nums2.length;","    const dp: number[][] = new Array(length1 + 1).fill(0)","        .map(_ =\u003e new Array(length2 + 1).fill(0));","    for (let i = 1; i \u003c= length1; i++) {","        for (let j = 1; j \u003c= length2; j++) {","            if (nums1[i - 1] === nums2[j - 1]) {","                dp[i][j] = dp[i - 1][j - 1] + 1;","            } else {","                dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);","            }","        }","    }","    return dp[length1][length2];","};","```","","\u003e 滚动数组","```typescript","function maxUncrossedLines(nums1: number[], nums2: number[]): number {","    const len1 = nums1.length","    const len2 = nums2.length","","    const dp: number[] = new Array(len2 + 1).fill(0)","","    for (let i = 1; i \u003c= len1; i++) {","        let prev: number = 0;","        let temp: number = 0;","        for (let j = 1; j \u003c= len2; j++) {","            // 备份一下当前状态（经过上层迭代后的）","            temp = dp[j]","            // prev 相当于 dp[j-1]（累加了上层的状态）","            // 如果单纯 dp[j-1] 则不会包含上层状态","            if (nums1[i - 1] === nums2[j - 1]) dp[j] = prev + 1","            // dp[j] 表示之前的 dp[i][j-1]，dp[j-1] 表示 dp[i-1][j]","            else dp[j] = Math.max(dp[j], dp[j - 1])","            // 继续使用上一层状态更新参数用于当前层下一个状态","            prev = temp","        }","    }","    return dp[len2]","}","```","","","","\u003cp align=\"center\"\u003e","\u003ca href=\"https://programmercarl.com/other/kstar.html\" target=\"_blank\"\u003e","  \u003cimg src=\"../pics/网站星球宣传海报.jpg\" 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</a>
</p><p align="center" dir="auto"><strong><a href="/feinan/leetcode-master/blob/master/problems/qita/join.md">参与本项目</a>，贡献其他语言版本的代码，拥抱开源，让更多学习算法的小伙伴们受益！</strong></p>
<div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">1035.不相交的线</h1><a id="user-content-1035不相交的线" class="anchor" aria-label="Permalink: 1035.不相交的线" href="#1035不相交的线"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<p dir="auto"><a href="https://leetcode.cn/problems/uncrossed-lines/" rel="nofollow">力扣题目链接</a></p>
<p dir="auto">我们在两条独立的水平线上按给定的顺序写下 A 和 B 中的整数。</p>
<p dir="auto">现在，我们可以绘制一些连接两个数字 A[i] 和 B[j] 的直线，只要 A[i] == B[j]，且我们绘制的直线不与任何其他连线（非水平线）相交。</p>
<p dir="auto">以这种方法绘制线条，并返回我们可以绘制的最大连线数。</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://camo.githubusercontent.com/a6e8b0945ddcc2d7167a669664b9c7b4b99f3d8136f5c3029ec6ff4705a27910/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f323032313033323131363336333533332e706e67"><img src="https://camo.githubusercontent.com/a6e8b0945ddcc2d7167a669664b9c7b4b99f3d8136f5c3029ec6ff4705a27910/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f323032313033323131363336333533332e706e67" alt="1035.不相交的线" data-canonical-src="https://code-thinking-1253855093.file.myqcloud.com/pics/2021032116363533.png" style="max-width: 100%;"></a></p>
<div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">算法公开课</h2><a id="user-content-算法公开课" class="anchor" aria-label="Permalink: 算法公开课" href="#算法公开课"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<p dir="auto"><strong><a href="https://programmercarl.com/other/gongkaike.html" rel="nofollow">《代码随想录》算法视频公开课</a>：<a href="https://www.bilibili.com/video/BV1h84y1x7MP" rel="nofollow">动态规划之子序列问题，换汤不换药 | LeetCode：1035.不相交的线</a>，相信结合视频再看本篇题解，更有助于大家对本题的理解</strong>。</p>
<div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">思路</h2><a id="user-content-思路" class="anchor" aria-label="Permalink: 思路" href="#思路"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<p dir="auto">相信不少录友看到这道题目都没啥思路，我们来逐步分析一下。</p>
<p dir="auto">绘制一些连接两个数字 A[i] 和 B[j] 的直线，只要 A[i] == B[j]，且直线不能相交！</p>
<p dir="auto">直线不能相交，这就是说明在字符串A中 找到一个与字符串B相同的子序列，且这个子序列不能改变相对顺序，只要相对顺序不改变，链接相同数字的直线就不会相交。</p>
<p dir="auto">拿示例一A = [1,4,2], B = [1,2,4]为例，相交情况如图：</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://camo.githubusercontent.com/e8e6dcbc9be664feb01259b373576e5d9c531b90b7ded4e4bba74e55780bb804/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f32303231303931343134353135382e706e67"><img src="https://camo.githubusercontent.com/e8e6dcbc9be664feb01259b373576e5d9c531b90b7ded4e4bba74e55780bb804/68747470733a2f2f636f64652d7468696e6b696e672d313235333835353039332e66696c652e6d7971636c6f75642e636f6d2f706963732f32303231303931343134353135382e706e67" alt="" data-canonical-src="https://code-thinking-1253855093.file.myqcloud.com/pics/20210914145158.png" style="max-width: 100%;"></a></p>
<p dir="auto">其实也就是说A和B的最长公共子序列是[1,4]，长度为2。 这个公共子序列指的是相对顺序不变（即数字4在字符串A中数字1的后面，那么数字4也应该在字符串B数字1的后面）</p>
<p dir="auto">这么分析完之后，大家可以发现：<strong>本题说是求绘制的最大连线数，其实就是求两个字符串的最长公共子序列的长度！</strong></p>
<p dir="auto">那么本题就和我们刚刚讲过的这道题目<a href="https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html" rel="nofollow">动态规划：1143.最长公共子序列</a>就是一样一样的了。</p>
<p dir="auto">一样到什么程度呢？ 把字符串名字改一下，其他代码都不用改，直接copy过来就行了。</p>
<p dir="auto">其实本题就是求最长公共子序列的长度，介于我们刚刚讲过<a href="https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html" rel="nofollow">动态规划：1143.最长公共子序列</a>，所以本题我就不再做动规五部曲分析了。</p>
<p dir="auto">如果大家有点遗忘了最长公共子序列，就再看一下这篇：<a href="https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html" rel="nofollow">动态规划：1143.最长公共子序列</a></p>
<p dir="auto">本题代码如下：</p>
<div class="highlight highlight-source-c++ notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="class Solution {
public:
    int maxUncrossedLines(vector&lt;int&gt;&amp; A, vector&lt;int&gt;&amp; B) {
        vector&lt;vector&lt;int&gt;&gt; dp(A.size() + 1, vector&lt;int&gt;(B.size() + 1, 0));
        for (int i = 1; i &lt;= A.size(); i++) {
            for (int j = 1; j &lt;= B.size(); j++) {
                if (A[i - 1] == B[j - 1]) {
                    dp[i][j] = dp[i - 1][j - 1] + 1;
                } else {
                    dp[i][j] = max(dp[i - 1][j], dp[i][j - 1]);
                }
            }
        }
        return dp[A.size()][B.size()];
    }
};"><pre><span class="pl-k">class</span> <span class="pl-en">Solution</span> {
<span class="pl-k">public:</span>
    <span class="pl-k">int</span> <span class="pl-en">maxUncrossedLines</span>(vector&lt;<span class="pl-k">int</span>&gt;&amp; A, vector&lt;<span class="pl-k">int</span>&gt;&amp; B) {
        vector&lt;vector&lt;<span class="pl-k">int</span>&gt;&gt; <span class="pl-c1">dp</span>(A.<span class="pl-c1">size</span>() + <span class="pl-c1">1</span>, vector&lt;<span class="pl-k">int</span>&gt;(B.<span class="pl-c1">size</span>() + <span class="pl-c1">1</span>, <span class="pl-c1">0</span>));
        <span class="pl-k">for</span> (<span class="pl-k">int</span> i = <span class="pl-c1">1</span>; i &lt;= A.<span class="pl-c1">size</span>(); i++) {
            <span class="pl-k">for</span> (<span class="pl-k">int</span> j = <span class="pl-c1">1</span>; j &lt;= B.<span class="pl-c1">size</span>(); j++) {
                <span class="pl-k">if</span> (A[i - <span class="pl-c1">1</span>] == B[j - <span class="pl-c1">1</span>]) {
                    dp[i][j] = dp[i - <span class="pl-c1">1</span>][j - <span class="pl-c1">1</span>] + <span class="pl-c1">1</span>;
                } <span class="pl-k">else</span> {
                    dp[i][j] = <span class="pl-c1">max</span>(dp[i - <span class="pl-c1">1</span>][j], dp[i][j - <span class="pl-c1">1</span>]);
                }
            }
        }
        <span class="pl-k">return</span> dp[A.<span class="pl-c1">size</span>()][B.<span class="pl-c1">size</span>()];
    }
};</pre></div>
<ul dir="auto">
<li>时间复杂度: O(n * m)</li>
<li>空间复杂度: O(n * m)</li>
</ul>
<div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">总结</h2><a id="user-content-总结" class="anchor" aria-label="Permalink: 总结" href="#总结"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<p dir="auto">看到代码大家也可以发现其实就是求两个字符串的最长公共子序列，但如果没有做过<a href="https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html" rel="nofollow">1143.最长公共子序列</a>，本题其实还有很有难度的。</p>
<p dir="auto">这是Carl为什么要先讲<a href="https://programmercarl.com/1143.%E6%9C%80%E9%95%BF%E5%85%AC%E5%85%B1%E5%AD%90%E5%BA%8F%E5%88%97.html" rel="nofollow">1143.最长公共子序列</a>再讲本题，大家会发现一个正确的刷题顺序对算法学习是非常重要的！</p>
<p dir="auto">这也是Carl做了很多题目（包括ACM和力扣）才总结出来的规律，大家仔细体会一下哈。</p>
<div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">其他语言版本</h2><a id="user-content-其他语言版本" class="anchor" aria-label="Permalink: 其他语言版本" href="#其他语言版本"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Java：</h3><a id="user-content-java" class="anchor" aria-label="Permalink: Java：" href="#java"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<div class="highlight highlight-source-java notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="  class Solution {
    public int maxUncrossedLines(int[] nums1, int[] nums2) {
        int len1 = nums1.length;
        int len2 = nums2.length;
        int[][] dp = new int[len1 + 1][len2 + 1];

        for (int i = 1; i &lt;= len1; i++) {
            for (int j = 1; j &lt;= len2; j++) {
                if (nums1[i - 1] == nums2[j - 1]) {
                    dp[i][j] = dp[i - 1][j - 1] + 1;
                } else {
                    dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
                }
            }
        }

        return dp[len1][len2];
    }
}"><pre>  <span class="pl-k">class</span> <span class="pl-smi">Solution</span> {
    <span class="pl-k">public</span> <span class="pl-smi">int</span> <span class="pl-en">maxUncrossedLines</span>(<span class="pl-smi">int</span>[] <span class="pl-s1">nums1</span>, <span class="pl-smi">int</span>[] <span class="pl-s1">nums2</span>) {
        <span class="pl-smi">int</span> <span class="pl-s1">len1</span> = <span class="pl-s1">nums1</span>.<span class="pl-s1">length</span>;
        <span class="pl-smi">int</span> <span class="pl-s1">len2</span> = <span class="pl-s1">nums2</span>.<span class="pl-s1">length</span>;
        <span class="pl-smi">int</span>[][] <span class="pl-s1">dp</span> = <span class="pl-k">new</span> <span class="pl-smi">int</span>[<span class="pl-s1">len1</span> + <span class="pl-c1">1</span>][<span class="pl-s1">len2</span> + <span class="pl-c1">1</span>];

        <span class="pl-k">for</span> (<span class="pl-smi">int</span> <span class="pl-s1">i</span> = <span class="pl-c1">1</span>; <span class="pl-s1">i</span> &lt;= <span class="pl-s1">len1</span>; <span class="pl-s1">i</span>++) {
            <span class="pl-k">for</span> (<span class="pl-smi">int</span> <span class="pl-s1">j</span> = <span class="pl-c1">1</span>; <span class="pl-s1">j</span> &lt;= <span class="pl-s1">len2</span>; <span class="pl-s1">j</span>++) {
                <span class="pl-k">if</span> (<span class="pl-s1">nums1</span>[<span class="pl-s1">i</span> - <span class="pl-c1">1</span>] == <span class="pl-s1">nums2</span>[<span class="pl-s1">j</span> - <span class="pl-c1">1</span>]) {
                    <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>][<span class="pl-s1">j</span>] = <span class="pl-s1">dp</span>[<span class="pl-s1">i</span> - <span class="pl-c1">1</span>][<span class="pl-s1">j</span> - <span class="pl-c1">1</span>] + <span class="pl-c1">1</span>;
                } <span class="pl-k">else</span> {
                    <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>][<span class="pl-s1">j</span>] = <span class="pl-smi">Math</span>.<span class="pl-en">max</span>(<span class="pl-s1">dp</span>[<span class="pl-s1">i</span> - <span class="pl-c1">1</span>][<span class="pl-s1">j</span>], <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>][<span class="pl-s1">j</span> - <span class="pl-c1">1</span>]);
                }
            }
        }

        <span class="pl-k">return</span> <span class="pl-s1">dp</span>[<span class="pl-s1">len1</span>][<span class="pl-s1">len2</span>];
    }
}</pre></div>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Python：</h3><a id="user-content-python" class="anchor" aria-label="Permalink: Python：" href="#python"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<div class="highlight highlight-source-python notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="class Solution:
    def maxUncrossedLines(self, A: List[int], B: List[int]) -&gt; int:
        dp = [[0] * (len(B)+1) for _ in range(len(A)+1)]
        for i in range(1, len(A)+1):
            for j in range(1, len(B)+1):
                if A[i-1] == B[j-1]:
                    dp[i][j] = dp[i-1][j-1] + 1
                else:
                    dp[i][j] = max(dp[i-1][j], dp[i][j-1])
        return dp[-1][-1]"><pre><span class="pl-k">class</span> <span class="pl-v">Solution</span>:
    <span class="pl-k">def</span> <span class="pl-en">maxUncrossedLines</span>(<span class="pl-s1">self</span>, <span class="pl-c1">A</span>: <span class="pl-v">List</span>[<span class="pl-smi">int</span>], <span class="pl-c1">B</span>: <span class="pl-v">List</span>[<span class="pl-smi">int</span>]) <span class="pl-c1">-&gt;</span> <span class="pl-smi">int</span>:
        <span class="pl-s1">dp</span> <span class="pl-c1">=</span> [[<span class="pl-c1">0</span>] <span class="pl-c1">*</span> (<span class="pl-en">len</span>(<span class="pl-c1">B</span>)<span class="pl-c1">+</span><span class="pl-c1">1</span>) <span class="pl-k">for</span> <span class="pl-s1">_</span> <span class="pl-c1">in</span> <span class="pl-en">range</span>(<span class="pl-en">len</span>(<span class="pl-c1">A</span>)<span class="pl-c1">+</span><span class="pl-c1">1</span>)]
        <span class="pl-k">for</span> <span class="pl-s1">i</span> <span class="pl-c1">in</span> <span class="pl-en">range</span>(<span class="pl-c1">1</span>, <span class="pl-en">len</span>(<span class="pl-c1">A</span>)<span class="pl-c1">+</span><span class="pl-c1">1</span>):
            <span class="pl-k">for</span> <span class="pl-s1">j</span> <span class="pl-c1">in</span> <span class="pl-en">range</span>(<span class="pl-c1">1</span>, <span class="pl-en">len</span>(<span class="pl-c1">B</span>)<span class="pl-c1">+</span><span class="pl-c1">1</span>):
                <span class="pl-k">if</span> <span class="pl-c1">A</span>[<span class="pl-s1">i</span><span class="pl-c1">-</span><span class="pl-c1">1</span>] <span class="pl-c1">==</span> <span class="pl-c1">B</span>[<span class="pl-s1">j</span><span class="pl-c1">-</span><span class="pl-c1">1</span>]:
                    <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>][<span class="pl-s1">j</span>] <span class="pl-c1">=</span> <span class="pl-s1">dp</span>[<span class="pl-s1">i</span><span class="pl-c1">-</span><span class="pl-c1">1</span>][<span class="pl-s1">j</span><span class="pl-c1">-</span><span class="pl-c1">1</span>] <span class="pl-c1">+</span> <span class="pl-c1">1</span>
                <span class="pl-k">else</span>:
                    <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>][<span class="pl-s1">j</span>] <span class="pl-c1">=</span> <span class="pl-en">max</span>(<span class="pl-s1">dp</span>[<span class="pl-s1">i</span><span class="pl-c1">-</span><span class="pl-c1">1</span>][<span class="pl-s1">j</span>], <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>][<span class="pl-s1">j</span><span class="pl-c1">-</span><span class="pl-c1">1</span>])
        <span class="pl-k">return</span> <span class="pl-s1">dp</span>[<span class="pl-c1">-</span><span class="pl-c1">1</span>][<span class="pl-c1">-</span><span class="pl-c1">1</span>]</pre></div>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Go:</h3><a id="user-content-go" class="anchor" aria-label="Permalink: Go:" href="#go"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func maxUncrossedLines(A []int, B []int) int {
	m, n := len(A), len(B)
	dp := make([][]int, m+1)
    for i := range dp {
        dp[i] = make([]int, n+1)
    }

	for i := 1; i &lt;= len(A); i++ {
		for j := 1; j &lt;= len(B); j++ {
			if (A[i - 1] == B[j - 1]) {
				dp[i][j] = dp[i - 1][j - 1] + 1
			} else {
				dp[i][j] = max(dp[i - 1][j], dp[i][j - 1])
			}
		}
	}
	return dp[m][n]

}

func max(a, b int) int {
    if a &gt; b {
        return a
    }
    return b
}"><pre><span class="pl-k">func</span> <span class="pl-s1">maxUncrossedLines</span>(<span class="pl-s1">A</span> []<span class="pl-smi">int</span>, <span class="pl-s1">B</span> []<span class="pl-smi">int</span>) <span class="pl-smi">int</span> {
	<span class="pl-s1">m</span>, <span class="pl-s1">n</span> <span class="pl-c1">:=</span> <span class="pl-s1">len</span>(<span class="pl-s1">A</span>), <span class="pl-s1">len</span>(<span class="pl-s1">B</span>)
	<span class="pl-s1">dp</span> <span class="pl-c1">:=</span> <span class="pl-s1">make</span>([][]<span class="pl-smi">int</span>, <span class="pl-s1">m</span><span class="pl-c1">+</span><span class="pl-c1">1</span>)
    <span class="pl-k">for</span> <span class="pl-s1">i</span> <span class="pl-c1">:=</span> <span class="pl-k">range</span> <span class="pl-s1">dp</span> {
        <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>] <span class="pl-c1">=</span> <span class="pl-s1">make</span>([]<span class="pl-smi">int</span>, <span class="pl-s1">n</span><span class="pl-c1">+</span><span class="pl-c1">1</span>)
    }

	<span class="pl-k">for</span> <span class="pl-s1">i</span> <span class="pl-c1">:=</span> <span class="pl-c1">1</span>; <span class="pl-s1">i</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">len</span>(<span class="pl-s1">A</span>); <span class="pl-s1">i</span><span class="pl-c1">++</span> {
		<span class="pl-k">for</span> <span class="pl-s1">j</span> <span class="pl-c1">:=</span> <span class="pl-c1">1</span>; <span class="pl-s1">j</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">len</span>(<span class="pl-s1">B</span>); <span class="pl-s1">j</span><span class="pl-c1">++</span> {
			<span class="pl-k">if</span> (<span class="pl-s1">A</span>[<span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span>] <span class="pl-c1">==</span> <span class="pl-s1">B</span>[<span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span>]) {
				<span class="pl-smi">dp</span>[<span class="pl-smi">i</span>][<span class="pl-smi">j</span>] <span class="pl-c1">=</span> <span class="pl-s1">dp</span>[<span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span>][<span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span>] <span class="pl-c1">+</span> <span class="pl-c1">1</span>
			} <span class="pl-k">else</span> {
				<span class="pl-smi">dp</span>[<span class="pl-smi">i</span>][<span class="pl-smi">j</span>] <span class="pl-c1">=</span> <span class="pl-s1">max</span>(<span class="pl-s1">dp</span>[<span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span>][<span class="pl-s1">j</span>], <span class="pl-s1">dp</span>[<span class="pl-s1">i</span>][<span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span>])
			}
		}
	}
	<span class="pl-k">return</span> <span class="pl-smi">dp</span>[<span class="pl-smi">m</span>][<span class="pl-smi">n</span>]

}

<span class="pl-k">func</span> <span class="pl-s1">max</span>(<span class="pl-s1">a</span>, <span class="pl-s1">b</span> <span class="pl-smi">int</span>) <span class="pl-smi">int</span> {
    <span class="pl-k">if</span> <span class="pl-s1">a</span> <span class="pl-c1">&gt;</span> <span class="pl-s1">b</span> {
        <span class="pl-k">return</span> <span class="pl-s1">a</span>
    }
    <span class="pl-k">return</span> <span class="pl-s1">b</span>
}</pre></div>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Rust:</h3><a id="user-content-rust" class="anchor" aria-label="Permalink: Rust:" href="#rust"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="impl Solution {
    pub fn max_uncrossed_lines(nums1: Vec&lt;i32&gt;, nums2: Vec&lt;i32&gt;) -&gt; i32 {
        let mut dp = vec![vec![0; nums2.len() + 1]; nums1.len() + 1];
        for (i, num1) in nums1.iter().enumerate() {
            for (j, num2) in nums2.iter().enumerate() {
                if num1 == num2 {
                    dp[i + 1][j + 1] = dp[i][j] + 1;
                } else {
                    dp[i + 1][j + 1] = dp[i][j + 1].max(dp[i + 1][j]);
                }
            }
        }
        dp[nums1.len()][nums2.len()]
    }
}"><pre><span class="pl-k">impl</span> <span class="pl-smi">Solution</span> <span class="pl-kos">{</span>
    <span class="pl-k">pub</span> <span class="pl-k">fn</span> <span class="pl-en">max_uncrossed_lines</span><span class="pl-kos">(</span><span class="pl-s1">nums1</span><span class="pl-kos">:</span> <span class="pl-smi">Vec</span><span class="pl-kos">&lt;</span><span class="pl-smi">i32</span><span class="pl-kos">&gt;</span><span class="pl-kos">,</span> <span class="pl-s1">nums2</span><span class="pl-kos">:</span> <span class="pl-smi">Vec</span><span class="pl-kos">&lt;</span><span class="pl-smi">i32</span><span class="pl-kos">&gt;</span><span class="pl-kos">)</span> -&gt; <span class="pl-smi">i32</span> <span class="pl-kos">{</span>
        <span class="pl-k">let</span> <span class="pl-k">mut</span> dp = <span class="pl-en">vec</span><span class="pl-en">!</span><span class="pl-kos">[</span>vec!<span class="pl-kos">[</span><span class="pl-c1">0</span><span class="pl-kos">;</span> nums2<span class="pl-kos">.</span>len<span class="pl-kos">(</span><span class="pl-kos">)</span> + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">;</span> nums1<span class="pl-kos">.</span>len<span class="pl-kos">(</span><span class="pl-kos">)</span> + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">;</span>
        <span class="pl-k">for</span> <span class="pl-kos">(</span>i<span class="pl-kos">,</span> num1<span class="pl-kos">)</span> <span class="pl-k">in</span> nums1<span class="pl-kos">.</span><span class="pl-en">iter</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">enumerate</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
            <span class="pl-k">for</span> <span class="pl-kos">(</span>j<span class="pl-kos">,</span> num2<span class="pl-kos">)</span> <span class="pl-k">in</span> nums2<span class="pl-kos">.</span><span class="pl-en">iter</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">enumerate</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
                <span class="pl-k">if</span> num1 == num2 <span class="pl-kos">{</span>
                    dp<span class="pl-kos">[</span>i + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">[</span>j + <span class="pl-c1">1</span><span class="pl-kos">]</span> = dp<span class="pl-kos">[</span>i<span class="pl-kos">]</span><span class="pl-kos">[</span>j<span class="pl-kos">]</span> + <span class="pl-c1">1</span><span class="pl-kos">;</span>
                <span class="pl-kos">}</span> <span class="pl-k">else</span> <span class="pl-kos">{</span>
                    dp<span class="pl-kos">[</span>i + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">[</span>j + <span class="pl-c1">1</span><span class="pl-kos">]</span> = dp<span class="pl-kos">[</span>i<span class="pl-kos">]</span><span class="pl-kos">[</span>j + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">.</span><span class="pl-en">max</span><span class="pl-kos">(</span>dp<span class="pl-kos">[</span>i + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">[</span>j<span class="pl-kos">]</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
                <span class="pl-kos">}</span>
            <span class="pl-kos">}</span>
        <span class="pl-kos">}</span>
        dp<span class="pl-kos">[</span>nums1<span class="pl-kos">.</span><span class="pl-en">len</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">]</span><span class="pl-kos">[</span>nums2<span class="pl-kos">.</span><span class="pl-en">len</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">]</span>
    <span class="pl-kos">}</span>
<span class="pl-kos">}</span></pre></div>
<blockquote>
<p dir="auto">滚动数组</p>
</blockquote>
<div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="impl Solution {
    pub fn max_uncrossed_lines(nums1: Vec&lt;i32&gt;, nums2: Vec&lt;i32&gt;) -&gt; i32 {
        let mut dp = vec![0; nums2.len() + 1];
        for num1 in nums1 {
            let mut prev = 0;
            for (j, &amp;num2) in nums2.iter().enumerate() {
                let temp = dp[j + 1];
                if num1 == num2 {
                    // 使用上一次的状态，防止重复计算
                    dp[j + 1] = prev + 1;
                } else {
                    dp[j + 1] = dp[j + 1].max(dp[j]);
                }
                prev = temp;
            }
        }
        dp[nums2.len()]
    }
}"><pre><span class="pl-k">impl</span> <span class="pl-smi">Solution</span> <span class="pl-kos">{</span>
    <span class="pl-k">pub</span> <span class="pl-k">fn</span> <span class="pl-en">max_uncrossed_lines</span><span class="pl-kos">(</span><span class="pl-s1">nums1</span><span class="pl-kos">:</span> <span class="pl-smi">Vec</span><span class="pl-kos">&lt;</span><span class="pl-smi">i32</span><span class="pl-kos">&gt;</span><span class="pl-kos">,</span> <span class="pl-s1">nums2</span><span class="pl-kos">:</span> <span class="pl-smi">Vec</span><span class="pl-kos">&lt;</span><span class="pl-smi">i32</span><span class="pl-kos">&gt;</span><span class="pl-kos">)</span> -&gt; <span class="pl-smi">i32</span> <span class="pl-kos">{</span>
        <span class="pl-k">let</span> <span class="pl-k">mut</span> dp = <span class="pl-en">vec</span><span class="pl-en">!</span><span class="pl-kos">[</span><span class="pl-c1">0</span><span class="pl-kos">;</span> nums2<span class="pl-kos">.</span>len<span class="pl-kos">(</span><span class="pl-kos">)</span> + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">;</span>
        <span class="pl-k">for</span> num1 <span class="pl-k">in</span> nums1 <span class="pl-kos">{</span>
            <span class="pl-k">let</span> <span class="pl-k">mut</span> prev = <span class="pl-c1">0</span><span class="pl-kos">;</span>
            <span class="pl-k">for</span> <span class="pl-kos">(</span>j<span class="pl-kos">,</span> <span class="pl-c1">&amp;</span>num2<span class="pl-kos">)</span> <span class="pl-k">in</span> nums2<span class="pl-kos">.</span><span class="pl-en">iter</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">enumerate</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
                <span class="pl-k">let</span> temp = dp<span class="pl-kos">[</span>j + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">;</span>
                <span class="pl-k">if</span> num1 == num2 <span class="pl-kos">{</span>
                    <span class="pl-c">// 使用上一次的状态，防止重复计算</span>
                    dp<span class="pl-kos">[</span>j + <span class="pl-c1">1</span><span class="pl-kos">]</span> = prev + <span class="pl-c1">1</span><span class="pl-kos">;</span>
                <span class="pl-kos">}</span> <span class="pl-k">else</span> <span class="pl-kos">{</span>
                    dp<span class="pl-kos">[</span>j + <span class="pl-c1">1</span><span class="pl-kos">]</span> = dp<span class="pl-kos">[</span>j + <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">.</span><span class="pl-en">max</span><span class="pl-kos">(</span>dp<span class="pl-kos">[</span>j<span class="pl-kos">]</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
                <span class="pl-kos">}</span>
                prev = temp<span class="pl-kos">;</span>
            <span class="pl-kos">}</span>
        <span class="pl-kos">}</span>
        dp<span class="pl-kos">[</span>nums2<span class="pl-kos">.</span><span class="pl-en">len</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">]</span>
    <span class="pl-kos">}</span>
<span class="pl-kos">}</span></pre></div>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">JavaScript：</h3><a id="user-content-javascript" class="anchor" aria-label="Permalink: JavaScript：" href="#javascript"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<div class="highlight highlight-source-js notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="const maxUncrossedLines = (nums1, nums2) =&gt; {
    // 两个数组长度
    const [m, n] = [nums1.length, nums2.length];
    // 创建dp数组并都初始化为0
    const dp = new Array(m + 1).fill(0).map(x =&gt; new Array(n + 1).fill(0));
    for (let i = 1; i &lt;= m; i++) {
        for (let j = 1; j &lt;= n; j++) {
            // 根据两种情况更新dp[i][j]
            if (nums1[i - 1] === nums2[j - 1]) {
                dp[i][j] = dp[i - 1][j - 1] + 1;
            } else {
                dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
            }
        }
    }
    // 返回dp数组中右下角的元素
    return dp[m][n];
};"><pre><span class="pl-k">const</span> <span class="pl-en">maxUncrossedLines</span> <span class="pl-c1">=</span> <span class="pl-kos">(</span><span class="pl-s1">nums1</span><span class="pl-kos">,</span> <span class="pl-s1">nums2</span><span class="pl-kos">)</span> <span class="pl-c1">=&gt;</span> <span class="pl-kos">{</span>
    <span class="pl-c">// 两个数组长度</span>
    <span class="pl-k">const</span> <span class="pl-kos">[</span><span class="pl-s1">m</span><span class="pl-kos">,</span> <span class="pl-s1">n</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-kos">[</span><span class="pl-s1">nums1</span><span class="pl-kos">.</span><span class="pl-c1">length</span><span class="pl-kos">,</span> <span class="pl-s1">nums2</span><span class="pl-kos">.</span><span class="pl-c1">length</span><span class="pl-kos">]</span><span class="pl-kos">;</span>
    <span class="pl-c">// 创建dp数组并都初始化为0</span>
    <span class="pl-k">const</span> <span class="pl-s1">dp</span> <span class="pl-c1">=</span> <span class="pl-k">new</span> <span class="pl-v">Array</span><span class="pl-kos">(</span><span class="pl-s1">m</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">fill</span><span class="pl-kos">(</span><span class="pl-c1">0</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">map</span><span class="pl-kos">(</span><span class="pl-s1">x</span> <span class="pl-c1">=&gt;</span> <span class="pl-k">new</span> <span class="pl-v">Array</span><span class="pl-kos">(</span><span class="pl-s1">n</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">fill</span><span class="pl-kos">(</span><span class="pl-c1">0</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
    <span class="pl-k">for</span> <span class="pl-kos">(</span><span class="pl-k">let</span> <span class="pl-s1">i</span> <span class="pl-c1">=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span> <span class="pl-s1">i</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">m</span><span class="pl-kos">;</span> <span class="pl-s1">i</span><span class="pl-c1">++</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
        <span class="pl-k">for</span> <span class="pl-kos">(</span><span class="pl-k">let</span> <span class="pl-s1">j</span> <span class="pl-c1">=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span> <span class="pl-s1">j</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">n</span><span class="pl-kos">;</span> <span class="pl-s1">j</span><span class="pl-c1">++</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
            <span class="pl-c">// 根据两种情况更新dp[i][j]</span>
            <span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-s1">nums1</span><span class="pl-kos">[</span><span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span> <span class="pl-c1">===</span> <span class="pl-s1">nums2</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
                <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span><span class="pl-kos">;</span>
            <span class="pl-kos">}</span> <span class="pl-k">else</span> <span class="pl-kos">{</span>
                <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-v">Math</span><span class="pl-kos">.</span><span class="pl-en">max</span><span class="pl-kos">(</span><span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
            <span class="pl-kos">}</span>
        <span class="pl-kos">}</span>
    <span class="pl-kos">}</span>
    <span class="pl-c">// 返回dp数组中右下角的元素</span>
    <span class="pl-k">return</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">m</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">n</span><span class="pl-kos">]</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span><span class="pl-kos">;</span></pre></div>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">TypeScript：</h3><a id="user-content-typescript" class="anchor" aria-label="Permalink: TypeScript：" href="#typescript"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div>
<blockquote>
<p dir="auto">二维数组</p>
</blockquote>
<div class="highlight highlight-source-ts notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="function maxUncrossedLines(nums1: number[], nums2: number[]): number {
    /**
        dp[i][j]: nums1前i-1个，nums2前j-1个，最大连线数
     */
    const length1: number = nums1.length,
        length2: number = nums2.length;
    const dp: number[][] = new Array(length1 + 1).fill(0)
        .map(_ =&gt; new Array(length2 + 1).fill(0));
    for (let i = 1; i &lt;= length1; i++) {
        for (let j = 1; j &lt;= length2; j++) {
            if (nums1[i - 1] === nums2[j - 1]) {
                dp[i][j] = dp[i - 1][j - 1] + 1;
            } else {
                dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
            }
        }
    }
    return dp[length1][length2];
};"><pre><span class="pl-k">function</span> <span class="pl-en">maxUncrossedLines</span><span class="pl-kos">(</span><span class="pl-s1">nums1</span>: <span class="pl-smi">number</span><span class="pl-kos">[</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-s1">nums2</span>: <span class="pl-smi">number</span><span class="pl-kos">[</span><span class="pl-kos">]</span><span class="pl-kos">)</span>: <span class="pl-smi">number</span> <span class="pl-kos">{</span>
    <span class="pl-c">/**</span>
<span class="pl-c">        dp[i][j]: nums1前i-1个，nums2前j-1个，最大连线数</span>
<span class="pl-c">     */</span>
    <span class="pl-k">const</span> <span class="pl-s1">length1</span>: <span class="pl-smi">number</span> <span class="pl-c1">=</span> <span class="pl-s1">nums1</span><span class="pl-kos">.</span><span class="pl-c1">length</span><span class="pl-kos">,</span>
        <span class="pl-s1">length2</span>: <span class="pl-smi">number</span> <span class="pl-c1">=</span> <span class="pl-s1">nums2</span><span class="pl-kos">.</span><span class="pl-c1">length</span><span class="pl-kos">;</span>
    <span class="pl-k">const</span> <span class="pl-s1">dp</span>: <span class="pl-smi">number</span><span class="pl-kos">[</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-k">new</span> <span class="pl-v">Array</span><span class="pl-kos">(</span><span class="pl-s1">length1</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">fill</span><span class="pl-kos">(</span><span class="pl-c1">0</span><span class="pl-kos">)</span>
        <span class="pl-kos">.</span><span class="pl-en">map</span><span class="pl-kos">(</span><span class="pl-s1">_</span> <span class="pl-c1">=&gt;</span> <span class="pl-k">new</span> <span class="pl-v">Array</span><span class="pl-kos">(</span><span class="pl-s1">length2</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">fill</span><span class="pl-kos">(</span><span class="pl-c1">0</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
    <span class="pl-k">for</span> <span class="pl-kos">(</span><span class="pl-k">let</span> <span class="pl-s1">i</span> <span class="pl-c1">=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span> <span class="pl-s1">i</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">length1</span><span class="pl-kos">;</span> <span class="pl-s1">i</span><span class="pl-c1">++</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
        <span class="pl-k">for</span> <span class="pl-kos">(</span><span class="pl-k">let</span> <span class="pl-s1">j</span> <span class="pl-c1">=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span> <span class="pl-s1">j</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">length2</span><span class="pl-kos">;</span> <span class="pl-s1">j</span><span class="pl-c1">++</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
            <span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-s1">nums1</span><span class="pl-kos">[</span><span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span> <span class="pl-c1">===</span> <span class="pl-s1">nums2</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
                <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span><span class="pl-kos">;</span>
            <span class="pl-kos">}</span> <span class="pl-k">else</span> <span class="pl-kos">{</span>
                <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-v">Math</span><span class="pl-kos">.</span><span class="pl-en">max</span><span class="pl-kos">(</span><span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">i</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
            <span class="pl-kos">}</span>
        <span class="pl-kos">}</span>
    <span class="pl-kos">}</span>
    <span class="pl-k">return</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">length1</span><span class="pl-kos">]</span><span class="pl-kos">[</span><span class="pl-s1">length2</span><span class="pl-kos">]</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span><span class="pl-kos">;</span></pre></div>
<blockquote>
<p dir="auto">滚动数组</p>
</blockquote>
<div class="highlight highlight-source-ts notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="function maxUncrossedLines(nums1: number[], nums2: number[]): number {
    const len1 = nums1.length
    const len2 = nums2.length

    const dp: number[] = new Array(len2 + 1).fill(0)

    for (let i = 1; i &lt;= len1; i++) {
        let prev: number = 0;
        let temp: number = 0;
        for (let j = 1; j &lt;= len2; j++) {
            // 备份一下当前状态（经过上层迭代后的）
            temp = dp[j]
            // prev 相当于 dp[j-1]（累加了上层的状态）
            // 如果单纯 dp[j-1] 则不会包含上层状态
            if (nums1[i - 1] === nums2[j - 1]) dp[j] = prev + 1
            // dp[j] 表示之前的 dp[i][j-1]，dp[j-1] 表示 dp[i-1][j]
            else dp[j] = Math.max(dp[j], dp[j - 1])
            // 继续使用上一层状态更新参数用于当前层下一个状态
            prev = temp
        }
    }
    return dp[len2]
}"><pre><span class="pl-k">function</span> <span class="pl-en">maxUncrossedLines</span><span class="pl-kos">(</span><span class="pl-s1">nums1</span>: <span class="pl-smi">number</span><span class="pl-kos">[</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-s1">nums2</span>: <span class="pl-smi">number</span><span class="pl-kos">[</span><span class="pl-kos">]</span><span class="pl-kos">)</span>: <span class="pl-smi">number</span> <span class="pl-kos">{</span>
    <span class="pl-k">const</span> <span class="pl-s1">len1</span> <span class="pl-c1">=</span> <span class="pl-s1">nums1</span><span class="pl-kos">.</span><span class="pl-c1">length</span>
    <span class="pl-k">const</span> <span class="pl-s1">len2</span> <span class="pl-c1">=</span> <span class="pl-s1">nums2</span><span class="pl-kos">.</span><span class="pl-c1">length</span>

    <span class="pl-k">const</span> <span class="pl-s1">dp</span>: <span class="pl-smi">number</span><span class="pl-kos">[</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-k">new</span> <span class="pl-v">Array</span><span class="pl-kos">(</span><span class="pl-s1">len2</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">fill</span><span class="pl-kos">(</span><span class="pl-c1">0</span><span class="pl-kos">)</span>

    <span class="pl-k">for</span> <span class="pl-kos">(</span><span class="pl-k">let</span> <span class="pl-s1">i</span> <span class="pl-c1">=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span> <span class="pl-s1">i</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">len1</span><span class="pl-kos">;</span> <span class="pl-s1">i</span><span class="pl-c1">++</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
        <span class="pl-k">let</span> <span class="pl-s1">prev</span>: <span class="pl-smi">number</span> <span class="pl-c1">=</span> <span class="pl-c1">0</span><span class="pl-kos">;</span>
        <span class="pl-k">let</span> <span class="pl-s1">temp</span>: <span class="pl-smi">number</span> <span class="pl-c1">=</span> <span class="pl-c1">0</span><span class="pl-kos">;</span>
        <span class="pl-k">for</span> <span class="pl-kos">(</span><span class="pl-k">let</span> <span class="pl-s1">j</span> <span class="pl-c1">=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span> <span class="pl-s1">j</span> <span class="pl-c1">&lt;=</span> <span class="pl-s1">len2</span><span class="pl-kos">;</span> <span class="pl-s1">j</span><span class="pl-c1">++</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
            <span class="pl-c">// 备份一下当前状态（经过上层迭代后的）</span>
            <span class="pl-s1">temp</span> <span class="pl-c1">=</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span>
            <span class="pl-c">// prev 相当于 dp[j-1]（累加了上层的状态）</span>
            <span class="pl-c">// 如果单纯 dp[j-1] 则不会包含上层状态</span>
            <span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-s1">nums1</span><span class="pl-kos">[</span><span class="pl-s1">i</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span> <span class="pl-c1">===</span> <span class="pl-s1">nums2</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">)</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-s1">prev</span> <span class="pl-c1">+</span> <span class="pl-c1">1</span>
            <span class="pl-c">// dp[j] 表示之前的 dp[i][j-1]，dp[j-1] 表示 dp[i-1][j]</span>
            <span class="pl-k">else</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-v">Math</span><span class="pl-kos">.</span><span class="pl-en">max</span><span class="pl-kos">(</span><span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">j</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">j</span> <span class="pl-c1">-</span> <span class="pl-c1">1</span><span class="pl-kos">]</span><span class="pl-kos">)</span>
            <span class="pl-c">// 继续使用上一层状态更新参数用于当前层下一个状态</span>
            <span class="pl-s1">prev</span> <span class="pl-c1">=</span> <span class="pl-s1">temp</span>
        <span class="pl-kos">}</span>
    <span class="pl-kos">}</span>
    <span class="pl-k">return</span> <span class="pl-s1">dp</span><span class="pl-kos">[</span><span class="pl-s1">len2</span><span class="pl-kos">]</span>
<span class="pl-kos">}</span></pre></div>
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