A collection of LeetCode questions to ace the coding interview! - Created using LeetHub v2

LeetCode Topics

Design

0146-lru-cache
0295-find-median-from-data-stream
1603-design-parking-system

Simulation

1603-design-parking-system
2221-find-triangular-sum-of-an-array

Counting

0767-reorganize-string
1603-design-parking-system

Array

0026-remove-duplicates-from-sorted-array
0042-trapping-rain-water
0049-group-anagrams
0080-remove-duplicates-from-sorted-array-ii
0200-number-of-islands
0215-kth-largest-element-in-an-array
0239-sliding-window-maximum
0253-meeting-rooms-ii
0994-rotting-oranges
1268-search-suggestions-system
2100-find-good-days-to-rob-the-bank
2221-find-triangular-sum-of-an-array

String

0003-longest-substring-without-repeating-characters
0049-group-anagrams
0316-remove-duplicate-letters
0438-find-all-anagrams-in-a-string
0443-string-compression
0767-reorganize-string
1047-remove-all-adjacent-duplicates-in-string
1209-remove-all-adjacent-duplicates-in-string-ii
1268-search-suggestions-system
2222-number-of-ways-to-select-buildings

Binary Search

1268-search-suggestions-system

Trie

1268-search-suggestions-system

Sorting

0049-group-anagrams
0215-kth-largest-element-in-an-array
0253-meeting-rooms-ii
0295-find-median-from-data-stream
0767-reorganize-string
1268-search-suggestions-system

Heap (Priority Queue)

0215-kth-largest-element-in-an-array
0239-sliding-window-maximum
0253-meeting-rooms-ii
0295-find-median-from-data-stream
0767-reorganize-string
1268-search-suggestions-system

Hash Table

0003-longest-substring-without-repeating-characters
0049-group-anagrams
0138-copy-list-with-random-pointer
0146-lru-cache
0438-find-all-anagrams-in-a-string
0767-reorganize-string

Linked List

0138-copy-list-with-random-pointer
0146-lru-cache

Greedy

0253-meeting-rooms-ii
0316-remove-duplicate-letters
0767-reorganize-string

Math

2221-find-triangular-sum-of-an-array

Combinatorics

2221-find-triangular-sum-of-an-array

Number Theory

2221-find-triangular-sum-of-an-array

Dynamic Programming

0042-trapping-rain-water
2100-find-good-days-to-rob-the-bank
2222-number-of-ways-to-select-buildings

Prefix Sum

0253-meeting-rooms-ii
2100-find-good-days-to-rob-the-bank
2222-number-of-ways-to-select-buildings

Doubly-Linked List

0146-lru-cache

Two Pointers

0026-remove-duplicates-from-sorted-array
0042-trapping-rain-water
0080-remove-duplicates-from-sorted-array-ii
0253-meeting-rooms-ii
0295-find-median-from-data-stream
0443-string-compression

Stack

0042-trapping-rain-water
0316-remove-duplicate-letters
1047-remove-all-adjacent-duplicates-in-string
1209-remove-all-adjacent-duplicates-in-string-ii

Monotonic Stack

0042-trapping-rain-water
0316-remove-duplicate-letters

Depth-First Search

0200-number-of-islands
0207-course-schedule
0210-course-schedule-ii

Breadth-First Search

0200-number-of-islands
0207-course-schedule
0210-course-schedule-ii
0994-rotting-oranges

Union-Find

0200-number-of-islands

Matrix

0200-number-of-islands
0994-rotting-oranges

Enumeration

1291-sequential-digits

Queue

0239-sliding-window-maximum

Sliding Window

0003-longest-substring-without-repeating-characters
0239-sliding-window-maximum
0438-find-all-anagrams-in-a-string

Monotonic Queue

0239-sliding-window-maximum

Range Minimum/Maximum Query

0239-sliding-window-maximum

Data Stream

0295-find-median-from-data-stream

Graph Theory

0207-course-schedule
0210-course-schedule-ii

Topological Sort

0207-course-schedule
0210-course-schedule-ii

Directed Acyclic Graph

0207-course-schedule

Divide and Conquer

0215-kth-largest-element-in-an-array

Quickselect

0215-kth-largest-element-in-an-array