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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" 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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 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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 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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="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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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 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/resources/articles?topic=security" data-analytics-event="{&quot;action&quot;:&quot;security&quot;,&quot;tag&quot;:&quot;link&quot;,&quot;context&quot;:&quot;resources&quot;,&quot;location&quot;:&quot;navbar&quot;,&quot;label&quot;:&quot;security_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">Security</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" 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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--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty">Collections</span></a></li></ul></div></li></ul></div></div></li><li><div class="NavDropdown-module__container__l2YeI"><button type="button" class="NavDropdown-module__button__PEHWX" aria-expanded="false" aria-controls="_R_2nd_">Enterprise<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_2nd_" 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1.75 0 0 1-1.756 0L2.119 5.456a1.251 1.251 0 0 1 0-2.162ZM8.125 1.69a.248.248 0 0 0-.25 0l-4.63 2.685 4.63 2.685a.248.248 0 0 0 .25 0l4.63-2.685ZM1.601 7.789a.75.75 0 0 1 1.025-.273l5.249 3.044a.248.248 0 0 0 .25 0l5.249-3.044a.75.75 0 0 1 .752 1.298l-5.248 3.044a1.75 1.75 0 0 1-1.756 0L1.874 8.814A.75.75 0 0 1 1.6 7.789Zm0 3.5a.75.75 0 0 1 1.025-.273l5.249 3.044a.248.248 0 0 0 .25 0l5.249-3.044a.75.75 0 0 1 .752 1.298l-5.248 3.044a1.75 1.75 0 0 1-1.756 0l-5.248-3.044a.75.75 0 0 1-.273-1.025Z"></path></svg>Enterprise platform</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">AI-powered developer platform</span></span></a></li></ul></div></li><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ 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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">Enterprise-grade security features</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0 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NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-copilot 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="M7.998 15.035c-4.562 0-7.873-2.914-7.998-3.749V9.338c.085-.628.677-1.686 1.588-2.065.013-.07.024-.143.036-.218.029-.183.06-.384.126-.612-.201-.508-.254-1.084-.254-1.656 0-.87.128-1.769.693-2.484.579-.733 1.494-1.124 2.724-1.261 1.206-.134 2.262.034 2.944.765.05.053.096.108.139.165.044-.057.094-.112.143-.165.682-.731 1.738-.899 2.944-.765 1.23.137 2.145.528 2.724 1.261.566.715.693 1.614.693 2.484 0 .572-.053 1.148-.254 1.656.066.228.098.429.126.612.012.076.024.148.037.218.924.385 1.522 1.471 1.591 2.095v1.872c0 .766-3.351 3.795-8.002 3.795Zm0-1.485c2.28 0 4.584-1.11 5.002-1.433V7.862l-.023-.116c-.49.21-1.075.291-1.727.291-1.146 0-2.059-.327-2.71-.991A3.222 3.222 0 0 1 8 6.303a3.24 3.24 0 0 1-.544.743c-.65.664-1.563.991-2.71.991-.652 0-1.236-.081-1.727-.291l-.023.116v4.255c.419.323 2.722 1.433 5.002 1.433ZM6.762 2.83c-.193-.206-.637-.413-1.682-.297-1.019.113-1.479.404-1.713.7-.247.312-.369.789-.369 1.554 0 .793.129 1.171.308 1.371.162.181.519.379 1.442.379.853 0 1.339-.235 1.638-.54.315-.322.527-.827.617-1.553.117-.935-.037-1.395-.241-1.614Zm4.155-.297c-1.044-.116-1.488.091-1.681.297-.204.219-.359.679-.242 1.614.091.726.303 1.231.618 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>Copilot for Business</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 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aria-label=\"Permalink: 二进制\" href=\"#二进制\"\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\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e常见二进制操作\u003c/h2\u003e\u003ca id=\"user-content-常见二进制操作\" class=\"anchor\" aria-label=\"Permalink: 常见二进制操作\" href=\"#常见二进制操作\"\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\"\u003e基本操作\u003c/h3\u003e\u003ca id=\"user-content-基本操作\" class=\"anchor\" aria-label=\"Permalink: 基本操作\" href=\"#基本操作\"\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\"\u003ea=0^a=a^0\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e0=a^a\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e由上面两个推导出：a=a^b^b\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e交换两个数\u003c/h3\u003e\u003ca id=\"user-content-交换两个数\" class=\"anchor\" aria-label=\"Permalink: 交换两个数\" href=\"#交换两个数\"\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\"\u003ea=a^b\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eb=a^b\u003c/p\u003e\n\u003cp dir=\"auto\"\u003ea=a^b\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e移除最后一个 1\u003c/h3\u003e\u003ca id=\"user-content-移除最后一个-1\" class=\"anchor\" aria-label=\"Permalink: 移除最后一个 1\" href=\"#移除最后一个-1\"\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\"\u003ea=n\u0026amp;(n-1)\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e获取最后一个 1\u003c/h3\u003e\u003ca id=\"user-content-获取最后一个-1\" class=\"anchor\" aria-label=\"Permalink: 获取最后一个 1\" href=\"#获取最后一个-1\"\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\"\u003ediff=(n\u0026amp;(n-1))^n\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e常见题目\u003c/h2\u003e\u003ca id=\"user-content-常见题目\" class=\"anchor\" aria-label=\"Permalink: 常见题目\" href=\"#常见题目\"\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.com/problems/single-number/\" rel=\"nofollow\"\u003esingle-number\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e给定一个\u003cstrong\u003e非空\u003c/strong\u003e整数数组，除了某个元素只出现一次以外，其余每个元素均出现两次。找出那个只出现了一次的元素。\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func singleNumber(nums []int) int {\n    // 10 ^10 == 00\n    // 两个数异或就变成0\n    result:=0\n    for i:=0;i\u0026lt;len(nums);i++{\n        result=result^nums[i]\n    }\n    return result\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003esingleNumber\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n    \u003cspan class=\"pl-c\"\u003e// 10 ^10 == 00\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// 两个数异或就变成0\u003c/span\u003e\n    \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\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-c1\"\u003e0\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\"\u003enums\u003c/span\u003e);\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e{\n        \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e^\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e]\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://leetcode-cn.com/problems/single-number-ii/\" rel=\"nofollow\"\u003esingle-number-ii\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e给定一个\u003cstrong\u003e非空\u003c/strong\u003e整数数组，除了某个元素只出现一次以外，其余每个元素均出现了三次。找出那个只出现了一次的元素。\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func singleNumber(nums []int) int {\n\t// 统计每位1的个数\n\tvar result int\n\tfor i := 0; i \u0026lt; 64; i++ {\n\t\tsum := 0\n\t\tfor j := 0; j \u0026lt; len(nums); j++ {\n\t\t\t// 统计1的个数\n\t\t\tsum += (nums[j] \u0026gt;\u0026gt; i) \u0026amp; 1\n\t\t}\n\t\t// 还原位00^10=10 或者用| 也可以\n\t\tresult ^= (sum % 3) \u0026lt;\u0026lt; i\n\t}\n\treturn result\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003esingleNumber\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n\t\u003cspan class=\"pl-c\"\u003e// 统计每位1的个数\u003c/span\u003e\n\t\u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e\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\"\u003e0\u003c/span\u003e; \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026lt;\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e64\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-s1\"\u003esum\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e0\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\"\u003e0\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\"\u003enums\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-c\"\u003e// 统计1的个数\u003c/span\u003e\n\t\t\t\u003cspan class=\"pl-s1\"\u003esum\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e+=\u003c/span\u003e (\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ej\u003c/span\u003e] \u003cspan class=\"pl-c1\"\u003e\u0026gt;\u0026gt;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e) \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\n\t\t}\n\t\t\u003cspan class=\"pl-c\"\u003e// 还原位00^10=10 或者用| 也可以\u003c/span\u003e\n\t\t\u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e^=\u003c/span\u003e (\u003cspan class=\"pl-s1\"\u003esum\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e%\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e3\u003c/span\u003e) \u003cspan class=\"pl-c1\"\u003e\u0026lt;\u0026lt;\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\n\t}\n\t\u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://leetcode-cn.com/problems/single-number-iii/\" rel=\"nofollow\"\u003esingle-number-iii\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e给定一个整数数组  \u003ccode\u003enums\u003c/code\u003e，其中恰好有两个元素只出现一次，其余所有元素均出现两次。 找出只出现一次的那两个元素。\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func singleNumber(nums []int) []int {\n    // a=a^b\n    // b=a^b\n    // a=a^b\n    // 关键点怎么把a^b分成两部分,方案：可以通过diff最后一个1区分\n\n    diff:=0\n    for i:=0;i\u0026lt;len(nums);i++{\n        diff^=nums[i]\n    }\n    result:=[]int{diff,diff}\n    // 去掉末尾的1后异或diff就得到最后一个1的位置\n    diff=(diff\u0026amp;(diff-1))^diff\n    for i:=0;i\u0026lt;len(nums);i++{\n        if diff\u0026amp;nums[i]==0{\n            result[0]^=nums[i]\n        }else{\n            result[1]^=nums[i]\n        }\n    }\n    return result\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003esingleNumber\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n    \u003cspan class=\"pl-c\"\u003e// a=a^b\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// b=a^b\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// a=a^b\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// 关键点怎么把a^b分成两部分,方案：可以通过diff最后一个1区分\u003c/span\u003e\n\n    \u003cspan class=\"pl-s1\"\u003ediff\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\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-c1\"\u003e0\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\"\u003enums\u003c/span\u003e);\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e{\n        \u003cspan class=\"pl-s1\"\u003ediff\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e^=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e]\n    }\n    \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e[]\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e{\u003cspan class=\"pl-s1\"\u003ediff\u003c/span\u003e,\u003cspan class=\"pl-s1\"\u003ediff\u003c/span\u003e}\n    \u003cspan class=\"pl-c\"\u003e// 去掉末尾的1后异或diff就得到最后一个1的位置\u003c/span\u003e\n    \u003cspan class=\"pl-s1\"\u003ediff\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003ediff\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003ediff\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\"\u003ediff\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-c1\"\u003e0\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\"\u003enums\u003c/span\u003e);\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e{\n        \u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ediff\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e]\u003cspan class=\"pl-c1\"\u003e==\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e{\n            \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e[\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e]\u003cspan class=\"pl-c1\"\u003e^=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e]\n        }\u003cspan class=\"pl-k\"\u003eelse\u003c/span\u003e{\n            \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e[\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e]\u003cspan class=\"pl-c1\"\u003e^=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enums\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e]\n        }\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eresult\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://leetcode-cn.com/problems/number-of-1-bits/\" rel=\"nofollow\"\u003enumber-of-1-bits\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e编写一个函数，输入是一个无符号整数，返回其二进制表达式中数字位数为 ‘1’  的个数（也被称为\u003ca href=\"https://baike.baidu.com/item/%E6%B1%89%E6%98%8E%E9%87%8D%E9%87%8F\" rel=\"nofollow\"\u003e汉明重量\u003c/a\u003e）。\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func hammingWeight(num uint32) int {\n    res:=0\n    for num!=0{\n        num=num\u0026amp;(num-1)\n        res++\n    }\n    return res\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ehammingWeight\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003euint32\u003c/span\u003e) \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n    \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e:=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e!=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e{\n        \u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e-\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e)\n        \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://leetcode-cn.com/problems/counting-bits/\" rel=\"nofollow\"\u003ecounting-bits\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e给定一个非负整数  \u003cstrong\u003enum\u003c/strong\u003e。对于  0 ≤ i ≤ num  范围中的每个数字  i ，计算其二进制数中的 1 的数目并将它们作为数组返回。\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func countBits(num int) []int {\n    res:=make([]int,num+1)\n\n    for i:=0;i\u0026lt;=num;i++{\n        res[i]=count1(i)\n    }\n    return res\n}\nfunc count1(n int)(res int){\n    for n!=0{\n        n=n\u0026amp;(n-1)\n        res++\n    }\n    return\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecountBits\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n    \u003cspan class=\"pl-s1\"\u003eres\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\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e)\n\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-c1\"\u003e0\u003c/span\u003e;\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026lt;=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e;\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e{\n        \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e]\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecount1\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e)\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\n}\n\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecount1\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e)(\u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e){\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e!=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e{\n        \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\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        \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e另外一种动态规划解法\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func countBits(num int) []int {\n    res:=make([]int,num+1)\n    for i:=1;i\u0026lt;=num;i++{\n        // 上一个缺1的元素+1即可\n        res[i]=res[i\u0026amp;(i-1)]+1\n    }\n    return res\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecountBits\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) []\u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n    \u003cspan class=\"pl-s1\"\u003eres\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\"\u003enum\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-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\"\u003enum\u003c/span\u003e;\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e{\n        \u003cspan class=\"pl-c\"\u003e// 上一个缺1的元素+1即可\u003c/span\u003e\n        \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e]\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e[\u003cspan class=\"pl-s1\"\u003ei\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\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\"\u003e1\u003c/span\u003e\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://leetcode-cn.com/problems/reverse-bits/\" rel=\"nofollow\"\u003ereverse-bits\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e颠倒给定的 32 位无符号整数的二进制位。\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003e思路：依次颠倒即可\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func reverseBits(num uint32) uint32 {\n    var res uint32\n    var pow int=31\n    for num!=0{\n        // 把最后一位取出来，左移之后累加到结果中\n        res+=(num\u0026amp;1)\u0026lt;\u0026lt;pow\n        num\u0026gt;\u0026gt;=1\n        pow--\n    }\n    return res\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ereverseBits\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003euint32\u003c/span\u003e) \u003cspan class=\"pl-smi\"\u003euint32\u003c/span\u003e {\n    \u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003euint32\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003epow\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e31\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e!=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e{\n        \u003cspan class=\"pl-c\"\u003e// 把最后一位取出来，左移之后累加到结果中\u003c/span\u003e\n        \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e+=\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e)\u003cspan class=\"pl-c1\"\u003e\u0026lt;\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003epow\u003c/span\u003e\n        \u003cspan class=\"pl-s1\"\u003enum\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026gt;\u0026gt;=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\n        \u003cspan class=\"pl-s1\"\u003epow\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e--\u003c/span\u003e\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003eres\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://leetcode-cn.com/problems/bitwise-and-of-numbers-range/\" rel=\"nofollow\"\u003ebitwise-and-of-numbers-range\u003c/a\u003e\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e给定范围 [m, n]，其中 0 \u0026lt;= m \u0026lt;= n \u0026lt;= 2147483647，返回此范围内所有数字的按位与（包含 m, n 两端点）。\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cdiv class=\"highlight highlight-source-go notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"func rangeBitwiseAnd(m int, n int) int {\n    // m 5 1 0 1\n    //   6 1 1 0\n    // n 7 1 1 1\n    // 把可能包含0的全部右移变成\n    // m 5 1 0 0\n    //   6 1 0 0\n    // n 7 1 0 0\n    // 所以最后结果就是m\u0026lt;\u0026lt;count\n    var count int\n    for m!=n{\n        m\u0026gt;\u0026gt;=1\n        n\u0026gt;\u0026gt;=1\n        count++\n    }\n    return m\u0026lt;\u0026lt;count\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003efunc\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003erangeBitwiseAnd\u003c/span\u003e(\u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e, \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e) \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e {\n    \u003cspan class=\"pl-c\"\u003e// m 5 1 0 1\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e//   6 1 1 0\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// n 7 1 1 1\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// 把可能包含0的全部右移变成\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// m 5 1 0 0\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e//   6 1 0 0\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// n 7 1 0 0\u003c/span\u003e\n    \u003cspan class=\"pl-c\"\u003e// 所以最后结果就是m\u0026lt;\u0026lt;count\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003evar\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003ecount\u003c/span\u003e \u003cspan class=\"pl-smi\"\u003eint\u003c/span\u003e\n    \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e!=\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e{\n        \u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026gt;\u0026gt;=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\n        \u003cspan class=\"pl-s1\"\u003en\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026gt;\u0026gt;=\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e1\u003c/span\u003e\n        \u003cspan class=\"pl-s1\"\u003ecount\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e++\u003c/span\u003e\n    }\n    \u003cspan class=\"pl-k\"\u003ereturn\u003c/span\u003e \u003cspan class=\"pl-s1\"\u003em\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026lt;\u0026lt;\u003c/span\u003e\u003cspan class=\"pl-s1\"\u003ecount\u003c/span\u003e\n}\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e练习\u003c/h2\u003e\u003ca id=\"user-content-练习\" class=\"anchor\" aria-label=\"Permalink: 练习\" href=\"#练习\"\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\u003cul class=\"contains-task-list\"\u003e\n\u003cli class=\"task-list-item\"\u003e\u003cinput type=\"checkbox\" id=\"\" disabled=\"\" class=\"task-list-item-checkbox\" aria-label=\"Incomplete task\"\u003e \u003ca href=\"https://leetcode-cn.com/problems/single-number/\" rel=\"nofollow\"\u003esingle-number\u003c/a\u003e\u003c/li\u003e\n\u003cli class=\"task-list-item\"\u003e\u003cinput type=\"checkbox\" id=\"\" disabled=\"\" class=\"task-list-item-checkbox\" aria-label=\"Incomplete task\"\u003e \u003ca href=\"https://leetcode-cn.com/problems/single-number-ii/\" rel=\"nofollow\"\u003esingle-number-ii\u003c/a\u003e\u003c/li\u003e\n\u003cli class=\"task-list-item\"\u003e\u003cinput type=\"checkbox\" id=\"\" disabled=\"\" class=\"task-list-item-checkbox\" aria-label=\"Incomplete task\"\u003e \u003ca href=\"https://leetcode-cn.com/problems/single-number-iii/\" rel=\"nofollow\"\u003esingle-number-iii\u003c/a\u003e\u003c/li\u003e\n\u003cli class=\"task-list-item\"\u003e\u003cinput type=\"checkbox\" id=\"\" disabled=\"\" class=\"task-list-item-checkbox\" aria-label=\"Incomplete task\"\u003e \u003ca href=\"https://leetcode-cn.com/problems/number-of-1-bits/\" rel=\"nofollow\"\u003enumber-of-1-bits\u003c/a\u003e\u003c/li\u003e\n\u003cli class=\"task-list-item\"\u003e\u003cinput type=\"checkbox\" id=\"\" disabled=\"\" class=\"task-list-item-checkbox\" aria-label=\"Incomplete task\"\u003e \u003ca href=\"https://leetcode-cn.com/problems/counting-bits/\" rel=\"nofollow\"\u003ecounting-bits\u003c/a\u003e\u003c/li\u003e\n\u003cli class=\"task-list-item\"\u003e\u003cinput type=\"checkbox\" id=\"\" disabled=\"\" class=\"task-list-item-checkbox\" aria-label=\"Incomplete task\"\u003e \u003ca href=\"https://leetcode-cn.com/problems/reverse-bits/\" rel=\"nofollow\"\u003ereverse-bits\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/article\u003e","richTextTruncated":false,"renderedFileInfo":null,"symbols":{"timed_out":false,"not_analyzed":false,"symbols":[{"name":"二进制","fully_qualified_name":"二进制","kind":"section_1","ident_start":2,"ident_end":11,"extent_start":0,"extent_end":4570,"ident_utf16":{"start":{"line_number":0,"utf16_col":2},"end":{"line_number":0,"utf16_col":5}},"extent_utf16":{"start":{"line_number":0,"utf16_col":0},"end":{"line_number":198,"utf16_col":0}}},{"name":"常见二进制操作","fully_qualified_name":"常见二进制操作","kind":"section_2","ident_start":16,"ident_end":37,"extent_start":13,"extent_end":234,"ident_utf16":{"start":{"line_number":2,"utf16_col":3},"end":{"line_number":2,"utf16_col":10}},"extent_utf16":{"start":{"line_number":2,"utf16_col":0},"end":{"line_number":28,"utf16_col":0}}},{"name":"基本操作","fully_qualified_name":"基本操作","kind":"section_3","ident_start":43,"ident_end":55,"extent_start":39,"extent_end":111,"ident_utf16":{"start":{"line_number":4,"utf16_col":4},"end":{"line_number":4,"utf16_col":8}},"extent_utf16":{"start":{"line_number":4,"utf16_col":0},"end":{"line_number":12,"utf16_col":0}}},{"name":"交换两个数","fully_qualified_name":"交换两个数","kind":"section_3","ident_start":115,"ident_end":130,"extent_start":111,"extent_end":153,"ident_utf16":{"start":{"line_number":12,"utf16_col":4},"end":{"line_number":12,"utf16_col":9}},"extent_utf16":{"start":{"line_number":12,"utf16_col":0},"end":{"line_number":20,"utf16_col":0}}},{"name":"移除最后一个 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二进制","","## 常见二进制操作","","### 基本操作","","a=0^a=a^0","","0=a^a","","由上面两个推导出：a=a^b^b","","### 交换两个数","","a=a^b","","b=a^b","","a=a^b","","### 移除最后一个 1","","a=n\u0026(n-1)","","### 获取最后一个 1","","diff=(n\u0026(n-1))^n","","## 常见题目","","[single-number](https://leetcode-cn.com/problems/single-number/)","","\u003e 给定一个**非空**整数数组，除了某个元素只出现一次以外，其余每个元素均出现两次。找出那个只出现了一次的元素。","","```go","func singleNumber(nums []int) int {","    // 10 ^10 == 00","    // 两个数异或就变成0","    result:=0","    for i:=0;i\u003clen(nums);i++{","        result=result^nums[i]","    }","    return result","}","```","","[single-number-ii](https://leetcode-cn.com/problems/single-number-ii/)","","\u003e 给定一个**非空**整数数组，除了某个元素只出现一次以外，其余每个元素均出现了三次。找出那个只出现了一次的元素。","","```go","func singleNumber(nums []int) int {","\t// 统计每位1的个数","\tvar result int","\tfor i := 0; i \u003c 64; i++ {","\t\tsum := 0","\t\tfor j := 0; j \u003c len(nums); j++ {","\t\t\t// 统计1的个数","\t\t\tsum += (nums[j] \u003e\u003e i) \u0026 1","\t\t}","\t\t// 还原位00^10=10 或者用| 也可以","\t\tresult ^= (sum % 3) \u003c\u003c i","\t}","\treturn result","}","```","","[single-number-iii](https://leetcode-cn.com/problems/single-number-iii/)","","\u003e 给定一个整数数组  `nums`，其中恰好有两个元素只出现一次，其余所有元素均出现两次。 找出只出现一次的那两个元素。","","```go","func singleNumber(nums []int) []int {","    // a=a^b","    // b=a^b","    // a=a^b","    // 关键点怎么把a^b分成两部分,方案：可以通过diff最后一个1区分","","    diff:=0","    for i:=0;i\u003clen(nums);i++{","        diff^=nums[i]","    }","    result:=[]int{diff,diff}","    // 去掉末尾的1后异或diff就得到最后一个1的位置","    diff=(diff\u0026(diff-1))^diff","    for i:=0;i\u003clen(nums);i++{","        if diff\u0026nums[i]==0{","            result[0]^=nums[i]","        }else{","            result[1]^=nums[i]","        }","    }","    return result","}","```","","[number-of-1-bits](https://leetcode-cn.com/problems/number-of-1-bits/)","","\u003e 编写一个函数，输入是一个无符号整数，返回其二进制表达式中数字位数为 ‘1’  的个数（也被称为[汉明重量](https://baike.baidu.com/item/%E6%B1%89%E6%98%8E%E9%87%8D%E9%87%8F)）。","","```go","func hammingWeight(num uint32) int {","    res:=0","    for num!=0{","        num=num\u0026(num-1)","        res++","    }","    return res","}","```","","[counting-bits](https://leetcode-cn.com/problems/counting-bits/)","","\u003e 给定一个非负整数  **num**。对于  0 ≤ i ≤ num  范围中的每个数字  i ，计算其二进制数中的 1 的数目并将它们作为数组返回。","","```go","func countBits(num int) []int {","    res:=make([]int,num+1)","","    for i:=0;i\u003c=num;i++{","        res[i]=count1(i)","    }","    return res","}","func count1(n int)(res int){","    for n!=0{","        n=n\u0026(n-1)","        res++","    }","    return","}","```","","另外一种动态规划解法","","```go","func countBits(num int) []int {","    res:=make([]int,num+1)","    for i:=1;i\u003c=num;i++{","        // 上一个缺1的元素+1即可","        res[i]=res[i\u0026(i-1)]+1","    }","    return res","}","```","","[reverse-bits](https://leetcode-cn.com/problems/reverse-bits/)","","\u003e 颠倒给定的 32 位无符号整数的二进制位。","","思路：依次颠倒即可","","```go","func reverseBits(num uint32) uint32 {","    var res uint32","    var pow int=31","    for num!=0{","        // 把最后一位取出来，左移之后累加到结果中","        res+=(num\u00261)\u003c\u003cpow","        num\u003e\u003e=1","        pow--","    }","    return res","}","```","","[bitwise-and-of-numbers-range](https://leetcode-cn.com/problems/bitwise-and-of-numbers-range/)","","\u003e 给定范围 [m, n]，其中 0 \u003c= m \u003c= n \u003c= 2147483647，返回此范围内所有数字的按位与（包含 m, n 两端点）。","","```go","func rangeBitwiseAnd(m int, n int) int {","    // m 5 1 0 1","    //   6 1 1 0","    // n 7 1 1 1","    // 把可能包含0的全部右移变成","    // m 5 1 0 0","    //   6 1 0 0","    // n 7 1 0 0","    // 所以最后结果就是m\u003c\u003ccount","    var count int","    for m!=n{","        m\u003e\u003e=1","        n\u003e\u003e=1","        count++","    }","    return m\u003c\u003ccount","}","```","","## 练习","","- [ ] [single-number](https://leetcode-cn.com/problems/single-number/)","- [ ] [single-number-ii](https://leetcode-cn.com/problems/single-number-ii/)","- [ ] [single-number-iii](https://leetcode-cn.com/problems/single-number-iii/)","- [ ] [number-of-1-bits](https://leetcode-cn.com/problems/number-of-1-bits/)","- [ ] [counting-bits](https://leetcode-cn.com/problems/counting-bits/)","- [ ] 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0-3 1.5 1.5 0 0 0 0 3Z"></path></svg></button><span class="prc-TooltipV2-Tooltip-tLeuB" data-direction="nw" data-component="Tooltip" aria-hidden="true" id="_R_fkecpala9lik5_">Edit and raw actions</span></div></div></div></div><div></div></div><div class="BlobViewContent-module__blobContentWrapper__JS0W6"><section aria-labelledby="file-name-id-wide file-name-id-mobile" class="BlobContent-module__blobContentSection__VOgZq BlobContent-module__blobContentSectionMarkdown__mPLOK" style="margin-top:46px"><div class="js-snippet-clipboard-copy-unpositioned BlobContent-module__markdownBlob__T8jpG" data-hpc="true" containertiming="hpc"><article class="markdown-body entry-content container-lg" itemprop="text"><div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">二进制</h1><a id="user-content-二进制" class="anchor" aria-label="Permalink: 二进制" href="#二进制"><svg data-component="Octicon" class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" 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<div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">常见二进制操作</h2><a id="user-content-常见二进制操作" class="anchor" aria-label="Permalink: 常见二进制操作" href="#常见二进制操作"><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">基本操作</h3><a id="user-content-基本操作" class="anchor" aria-label="Permalink: 基本操作" href="#基本操作"><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=0^a=a^0</p>
<p dir="auto">0=a^a</p>
<p dir="auto">由上面两个推导出：a=a^b^b</p>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">交换两个数</h3><a id="user-content-交换两个数" class="anchor" aria-label="Permalink: 交换两个数" href="#交换两个数"><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=a^b</p>
<p dir="auto">b=a^b</p>
<p dir="auto">a=a^b</p>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">移除最后一个 1</h3><a id="user-content-移除最后一个-1" class="anchor" aria-label="Permalink: 移除最后一个 1" href="#移除最后一个-1"><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=n&amp;(n-1)</p>
<div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">获取最后一个 1</h3><a id="user-content-获取最后一个-1" class="anchor" aria-label="Permalink: 获取最后一个 1" href="#获取最后一个-1"><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">diff=(n&amp;(n-1))^n</p>
<div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">常见题目</h2><a id="user-content-常见题目" class="anchor" aria-label="Permalink: 常见题目" href="#常见题目"><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.com/problems/single-number/" rel="nofollow">single-number</a></p>
<blockquote>
<p dir="auto">给定一个<strong>非空</strong>整数数组，除了某个元素只出现一次以外，其余每个元素均出现两次。找出那个只出现了一次的元素。</p>
</blockquote>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func singleNumber(nums []int) int {
    // 10 ^10 == 00
    // 两个数异或就变成0
    result:=0
    for i:=0;i&lt;len(nums);i++{
        result=result^nums[i]
    }
    return result
}"><pre><span class="pl-k">func</span> <span class="pl-s1">singleNumber</span>(<span class="pl-s1">nums</span> []<span class="pl-smi">int</span>) <span class="pl-smi">int</span> {
    <span class="pl-c">// 10 ^10 == 00</span>
    <span class="pl-c">// 两个数异或就变成0</span>
    <span class="pl-s1">result</span><span class="pl-c1">:=</span><span class="pl-c1">0</span>
    <span class="pl-k">for</span> <span class="pl-s1">i</span><span class="pl-c1">:=</span><span class="pl-c1">0</span>;<span class="pl-s1">i</span><span class="pl-c1">&lt;</span><span class="pl-s1">len</span>(<span class="pl-s1">nums</span>);<span class="pl-s1">i</span><span class="pl-c1">++</span>{
        <span class="pl-s1">result</span><span class="pl-c1">=</span><span class="pl-s1">result</span><span class="pl-c1">^</span><span class="pl-s1">nums</span>[<span class="pl-s1">i</span>]
    }
    <span class="pl-k">return</span> <span class="pl-s1">result</span>
}</pre></div>
<p dir="auto"><a href="https://leetcode-cn.com/problems/single-number-ii/" rel="nofollow">single-number-ii</a></p>
<blockquote>
<p dir="auto">给定一个<strong>非空</strong>整数数组，除了某个元素只出现一次以外，其余每个元素均出现了三次。找出那个只出现了一次的元素。</p>
</blockquote>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func singleNumber(nums []int) int {
	// 统计每位1的个数
	var result int
	for i := 0; i &lt; 64; i++ {
		sum := 0
		for j := 0; j &lt; len(nums); j++ {
			// 统计1的个数
			sum += (nums[j] &gt;&gt; i) &amp; 1
		}
		// 还原位00^10=10 或者用| 也可以
		result ^= (sum % 3) &lt;&lt; i
	}
	return result
}"><pre><span class="pl-k">func</span> <span class="pl-s1">singleNumber</span>(<span class="pl-s1">nums</span> []<span class="pl-smi">int</span>) <span class="pl-smi">int</span> {
	<span class="pl-c">// 统计每位1的个数</span>
	<span class="pl-k">var</span> <span class="pl-s1">result</span> <span class="pl-smi">int</span>
	<span class="pl-k">for</span> <span class="pl-s1">i</span> <span class="pl-c1">:=</span> <span class="pl-c1">0</span>; <span class="pl-s1">i</span> <span class="pl-c1">&lt;</span> <span class="pl-c1">64</span>; <span class="pl-s1">i</span><span class="pl-c1">++</span> {
		<span class="pl-s1">sum</span> <span class="pl-c1">:=</span> <span class="pl-c1">0</span>
		<span class="pl-k">for</span> <span class="pl-s1">j</span> <span class="pl-c1">:=</span> <span class="pl-c1">0</span>; <span class="pl-s1">j</span> <span class="pl-c1">&lt;</span> <span class="pl-s1">len</span>(<span class="pl-s1">nums</span>); <span class="pl-s1">j</span><span class="pl-c1">++</span> {
			<span class="pl-c">// 统计1的个数</span>
			<span class="pl-s1">sum</span> <span class="pl-c1">+=</span> (<span class="pl-s1">nums</span>[<span class="pl-s1">j</span>] <span class="pl-c1">&gt;&gt;</span> <span class="pl-s1">i</span>) <span class="pl-c1">&amp;</span> <span class="pl-c1">1</span>
		}
		<span class="pl-c">// 还原位00^10=10 或者用| 也可以</span>
		<span class="pl-s1">result</span> <span class="pl-c1">^=</span> (<span class="pl-s1">sum</span> <span class="pl-c1">%</span> <span class="pl-c1">3</span>) <span class="pl-c1">&lt;&lt;</span> <span class="pl-s1">i</span>
	}
	<span class="pl-k">return</span> <span class="pl-s1">result</span>
}</pre></div>
<p dir="auto"><a href="https://leetcode-cn.com/problems/single-number-iii/" rel="nofollow">single-number-iii</a></p>
<blockquote>
<p dir="auto">给定一个整数数组  <code>nums</code>，其中恰好有两个元素只出现一次，其余所有元素均出现两次。 找出只出现一次的那两个元素。</p>
</blockquote>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func singleNumber(nums []int) []int {
    // a=a^b
    // b=a^b
    // a=a^b
    // 关键点怎么把a^b分成两部分,方案：可以通过diff最后一个1区分

    diff:=0
    for i:=0;i&lt;len(nums);i++{
        diff^=nums[i]
    }
    result:=[]int{diff,diff}
    // 去掉末尾的1后异或diff就得到最后一个1的位置
    diff=(diff&amp;(diff-1))^diff
    for i:=0;i&lt;len(nums);i++{
        if diff&amp;nums[i]==0{
            result[0]^=nums[i]
        }else{
            result[1]^=nums[i]
        }
    }
    return result
}"><pre><span class="pl-k">func</span> <span class="pl-s1">singleNumber</span>(<span class="pl-s1">nums</span> []<span class="pl-smi">int</span>) []<span class="pl-smi">int</span> {
    <span class="pl-c">// a=a^b</span>
    <span class="pl-c">// b=a^b</span>
    <span class="pl-c">// a=a^b</span>
    <span class="pl-c">// 关键点怎么把a^b分成两部分,方案：可以通过diff最后一个1区分</span>

    <span class="pl-s1">diff</span><span class="pl-c1">:=</span><span class="pl-c1">0</span>
    <span class="pl-k">for</span> <span class="pl-s1">i</span><span class="pl-c1">:=</span><span class="pl-c1">0</span>;<span class="pl-s1">i</span><span class="pl-c1">&lt;</span><span class="pl-s1">len</span>(<span class="pl-s1">nums</span>);<span class="pl-s1">i</span><span class="pl-c1">++</span>{
        <span class="pl-s1">diff</span><span class="pl-c1">^=</span><span class="pl-s1">nums</span>[<span class="pl-s1">i</span>]
    }
    <span class="pl-s1">result</span><span class="pl-c1">:=</span>[]<span class="pl-smi">int</span>{<span class="pl-s1">diff</span>,<span class="pl-s1">diff</span>}
    <span class="pl-c">// 去掉末尾的1后异或diff就得到最后一个1的位置</span>
    <span class="pl-s1">diff</span><span class="pl-c1">=</span>(<span class="pl-s1">diff</span><span class="pl-c1">&amp;</span>(<span class="pl-s1">diff</span><span class="pl-c1">-</span><span class="pl-c1">1</span>))<span class="pl-c1">^</span><span class="pl-s1">diff</span>
    <span class="pl-k">for</span> <span class="pl-s1">i</span><span class="pl-c1">:=</span><span class="pl-c1">0</span>;<span class="pl-s1">i</span><span class="pl-c1">&lt;</span><span class="pl-s1">len</span>(<span class="pl-s1">nums</span>);<span class="pl-s1">i</span><span class="pl-c1">++</span>{
        <span class="pl-k">if</span> <span class="pl-s1">diff</span><span class="pl-c1">&amp;</span><span class="pl-s1">nums</span>[<span class="pl-s1">i</span>]<span class="pl-c1">==</span><span class="pl-c1">0</span>{
            <span class="pl-s1">result</span>[<span class="pl-c1">0</span>]<span class="pl-c1">^=</span><span class="pl-s1">nums</span>[<span class="pl-s1">i</span>]
        }<span class="pl-k">else</span>{
            <span class="pl-s1">result</span>[<span class="pl-c1">1</span>]<span class="pl-c1">^=</span><span class="pl-s1">nums</span>[<span class="pl-s1">i</span>]
        }
    }
    <span class="pl-k">return</span> <span class="pl-s1">result</span>
}</pre></div>
<p dir="auto"><a href="https://leetcode-cn.com/problems/number-of-1-bits/" rel="nofollow">number-of-1-bits</a></p>
<blockquote>
<p dir="auto">编写一个函数，输入是一个无符号整数，返回其二进制表达式中数字位数为 ‘1’  的个数（也被称为<a href="https://baike.baidu.com/item/%E6%B1%89%E6%98%8E%E9%87%8D%E9%87%8F" rel="nofollow">汉明重量</a>）。</p>
</blockquote>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func hammingWeight(num uint32) int {
    res:=0
    for num!=0{
        num=num&amp;(num-1)
        res++
    }
    return res
}"><pre><span class="pl-k">func</span> <span class="pl-s1">hammingWeight</span>(<span class="pl-s1">num</span> <span class="pl-smi">uint32</span>) <span class="pl-smi">int</span> {
    <span class="pl-s1">res</span><span class="pl-c1">:=</span><span class="pl-c1">0</span>
    <span class="pl-k">for</span> <span class="pl-s1">num</span><span class="pl-c1">!=</span><span class="pl-c1">0</span>{
        <span class="pl-s1">num</span><span class="pl-c1">=</span><span class="pl-s1">num</span><span class="pl-c1">&amp;</span>(<span class="pl-s1">num</span><span class="pl-c1">-</span><span class="pl-c1">1</span>)
        <span class="pl-s1">res</span><span class="pl-c1">++</span>
    }
    <span class="pl-k">return</span> <span class="pl-s1">res</span>
}</pre></div>
<p dir="auto"><a href="https://leetcode-cn.com/problems/counting-bits/" rel="nofollow">counting-bits</a></p>
<blockquote>
<p dir="auto">给定一个非负整数  <strong>num</strong>。对于  0 ≤ i ≤ num  范围中的每个数字  i ，计算其二进制数中的 1 的数目并将它们作为数组返回。</p>
</blockquote>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func countBits(num int) []int {
    res:=make([]int,num+1)

    for i:=0;i&lt;=num;i++{
        res[i]=count1(i)
    }
    return res
}
func count1(n int)(res int){
    for n!=0{
        n=n&amp;(n-1)
        res++
    }
    return
}"><pre><span class="pl-k">func</span> <span class="pl-s1">countBits</span>(<span class="pl-s1">num</span> <span class="pl-smi">int</span>) []<span class="pl-smi">int</span> {
    <span class="pl-s1">res</span><span class="pl-c1">:=</span><span class="pl-s1">make</span>([]<span class="pl-smi">int</span>,<span class="pl-s1">num</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">0</span>;<span class="pl-s1">i</span><span class="pl-c1">&lt;=</span><span class="pl-s1">num</span>;<span class="pl-s1">i</span><span class="pl-c1">++</span>{
        <span class="pl-s1">res</span>[<span class="pl-s1">i</span>]<span class="pl-c1">=</span><span class="pl-s1">count1</span>(<span class="pl-s1">i</span>)
    }
    <span class="pl-k">return</span> <span class="pl-s1">res</span>
}
<span class="pl-k">func</span> <span class="pl-s1">count1</span>(<span class="pl-s1">n</span> <span class="pl-smi">int</span>)(<span class="pl-s1">res</span> <span class="pl-smi">int</span>){
    <span class="pl-k">for</span> <span class="pl-s1">n</span><span class="pl-c1">!=</span><span class="pl-c1">0</span>{
        <span class="pl-s1">n</span><span class="pl-c1">=</span><span class="pl-s1">n</span><span class="pl-c1">&amp;</span>(<span class="pl-s1">n</span><span class="pl-c1">-</span><span class="pl-c1">1</span>)
        <span class="pl-s1">res</span><span class="pl-c1">++</span>
    }
    <span class="pl-k">return</span>
}</pre></div>
<p dir="auto">另外一种动态规划解法</p>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func countBits(num int) []int {
    res:=make([]int,num+1)
    for i:=1;i&lt;=num;i++{
        // 上一个缺1的元素+1即可
        res[i]=res[i&amp;(i-1)]+1
    }
    return res
}"><pre><span class="pl-k">func</span> <span class="pl-s1">countBits</span>(<span class="pl-s1">num</span> <span class="pl-smi">int</span>) []<span class="pl-smi">int</span> {
    <span class="pl-s1">res</span><span class="pl-c1">:=</span><span class="pl-s1">make</span>([]<span class="pl-smi">int</span>,<span class="pl-s1">num</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">num</span>;<span class="pl-s1">i</span><span class="pl-c1">++</span>{
        <span class="pl-c">// 上一个缺1的元素+1即可</span>
        <span class="pl-s1">res</span>[<span class="pl-s1">i</span>]<span class="pl-c1">=</span><span class="pl-s1">res</span>[<span class="pl-s1">i</span><span class="pl-c1">&amp;</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">1</span>
    }
    <span class="pl-k">return</span> <span class="pl-s1">res</span>
}</pre></div>
<p dir="auto"><a href="https://leetcode-cn.com/problems/reverse-bits/" rel="nofollow">reverse-bits</a></p>
<blockquote>
<p dir="auto">颠倒给定的 32 位无符号整数的二进制位。</p>
</blockquote>
<p dir="auto">思路：依次颠倒即可</p>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func reverseBits(num uint32) uint32 {
    var res uint32
    var pow int=31
    for num!=0{
        // 把最后一位取出来，左移之后累加到结果中
        res+=(num&amp;1)&lt;&lt;pow
        num&gt;&gt;=1
        pow--
    }
    return res
}"><pre><span class="pl-k">func</span> <span class="pl-s1">reverseBits</span>(<span class="pl-s1">num</span> <span class="pl-smi">uint32</span>) <span class="pl-smi">uint32</span> {
    <span class="pl-k">var</span> <span class="pl-s1">res</span> <span class="pl-smi">uint32</span>
    <span class="pl-k">var</span> <span class="pl-s1">pow</span> <span class="pl-smi">int</span><span class="pl-c1">=</span><span class="pl-c1">31</span>
    <span class="pl-k">for</span> <span class="pl-s1">num</span><span class="pl-c1">!=</span><span class="pl-c1">0</span>{
        <span class="pl-c">// 把最后一位取出来，左移之后累加到结果中</span>
        <span class="pl-s1">res</span><span class="pl-c1">+=</span>(<span class="pl-s1">num</span><span class="pl-c1">&amp;</span><span class="pl-c1">1</span>)<span class="pl-c1">&lt;&lt;</span><span class="pl-s1">pow</span>
        <span class="pl-s1">num</span><span class="pl-c1">&gt;&gt;=</span><span class="pl-c1">1</span>
        <span class="pl-s1">pow</span><span class="pl-c1">--</span>
    }
    <span class="pl-k">return</span> <span class="pl-s1">res</span>
}</pre></div>
<p dir="auto"><a href="https://leetcode-cn.com/problems/bitwise-and-of-numbers-range/" rel="nofollow">bitwise-and-of-numbers-range</a></p>
<blockquote>
<p dir="auto">给定范围 [m, n]，其中 0 &lt;= m &lt;= n &lt;= 2147483647，返回此范围内所有数字的按位与（包含 m, n 两端点）。</p>
</blockquote>
<div class="highlight highlight-source-go notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="func rangeBitwiseAnd(m int, n int) int {
    // m 5 1 0 1
    //   6 1 1 0
    // n 7 1 1 1
    // 把可能包含0的全部右移变成
    // m 5 1 0 0
    //   6 1 0 0
    // n 7 1 0 0
    // 所以最后结果就是m&lt;&lt;count
    var count int
    for m!=n{
        m&gt;&gt;=1
        n&gt;&gt;=1
        count++
    }
    return m&lt;&lt;count
}"><pre><span class="pl-k">func</span> <span class="pl-s1">rangeBitwiseAnd</span>(<span class="pl-s1">m</span> <span class="pl-smi">int</span>, <span class="pl-s1">n</span> <span class="pl-smi">int</span>) <span class="pl-smi">int</span> {
    <span class="pl-c">// m 5 1 0 1</span>
    <span class="pl-c">//   6 1 1 0</span>
    <span class="pl-c">// n 7 1 1 1</span>
    <span class="pl-c">// 把可能包含0的全部右移变成</span>
    <span class="pl-c">// m 5 1 0 0</span>
    <span class="pl-c">//   6 1 0 0</span>
    <span class="pl-c">// n 7 1 0 0</span>
    <span class="pl-c">// 所以最后结果就是m&lt;&lt;count</span>
    <span class="pl-k">var</span> <span class="pl-s1">count</span> <span class="pl-smi">int</span>
    <span class="pl-k">for</span> <span class="pl-s1">m</span><span class="pl-c1">!=</span><span class="pl-s1">n</span>{
        <span class="pl-s1">m</span><span class="pl-c1">&gt;&gt;=</span><span class="pl-c1">1</span>
        <span class="pl-s1">n</span><span class="pl-c1">&gt;&gt;=</span><span class="pl-c1">1</span>
        <span class="pl-s1">count</span><span class="pl-c1">++</span>
    }
    <span class="pl-k">return</span> <span class="pl-s1">m</span><span class="pl-c1">&lt;&lt;</span><span class="pl-s1">count</span>
}</pre></div>
<div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">练习</h2><a id="user-content-练习" class="anchor" aria-label="Permalink: 练习" href="#练习"><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>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" aria-label="Incomplete task"> <a href="https://leetcode-cn.com/problems/single-number/" rel="nofollow">single-number</a></li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" aria-label="Incomplete task"> <a href="https://leetcode-cn.com/problems/single-number-ii/" rel="nofollow">single-number-ii</a></li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" aria-label="Incomplete task"> <a href="https://leetcode-cn.com/problems/single-number-iii/" rel="nofollow">single-number-iii</a></li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" aria-label="Incomplete task"> <a href="https://leetcode-cn.com/problems/number-of-1-bits/" rel="nofollow">number-of-1-bits</a></li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" aria-label="Incomplete task"> <a href="https://leetcode-cn.com/problems/counting-bits/" rel="nofollow">counting-bits</a></li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" aria-label="Incomplete task"> <a href="https://leetcode-cn.com/problems/reverse-bits/" rel="nofollow">reverse-bits</a></li>
</ul>
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      <div class="octocat-spinner tmp-my-6 js-details-dialog-spinner"></div>
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    <div class="Popover js-hovercard-content position-absolute" style="display: none; outline: none;">
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</template>
<template id="snippet-clipboard-copy-button-unpositioned">
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</svg>
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</svg>
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