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

LeetCode Topics

Array

0001-two-sum
0027-remove-element
0033-search-in-rotated-sorted-array
0035-search-insert-position
0037-sudoku-solver
0039-combination-sum
0040-combination-sum-ii
0041-first-missing-positive
0042-trapping-rain-water
0045-jump-game-ii
0046-permutations
0047-permutations-ii
0048-rotate-image
0049-group-anagrams
0051-n-queens
0053-maximum-subarray
0054-spiral-matrix
0055-jump-game
0056-merge-intervals
0057-insert-interval
0059-spiral-matrix-ii
0063-unique-paths-ii
2169-simple-bank-system
2244-number-of-laser-beams-in-a-bank
3616-make-array-elements-equal-to-zero
3640-maximum-frequency-of-an-element-after-performing-operations-ii

Two Pointers

0027-remove-element
0028-find-the-index-of-the-first-occurrence-in-a-string
0042-trapping-rain-water
0061-rotate-list

Hash Table

0001-two-sum
0037-sudoku-solver
0041-first-missing-positive
0049-group-anagrams
2169-simple-bank-system
2174-next-greater-numerically-balanced-number

String

0028-find-the-index-of-the-first-occurrence-in-a-string
0032-longest-valid-parentheses
0038-count-and-say
0043-multiply-strings
0044-wildcard-matching
0049-group-anagrams
0058-length-of-last-word
1747-lexicographically-smallest-string-after-applying-operations
2244-number-of-laser-beams-in-a-bank
3768-check-if-digits-are-equal-in-string-after-operations-i

String Matching

0028-find-the-index-of-the-first-occurrence-in-a-string

Math

0029-divide-two-integers
0043-multiply-strings
0048-rotate-image
0050-powx-n
0060-permutation-sequence
0062-unique-paths
2174-next-greater-numerically-balanced-number
2244-number-of-laser-beams-in-a-bank
3768-check-if-digits-are-equal-in-string-after-operations-i

Bit Manipulation

0029-divide-two-integers

Dynamic Programming

0032-longest-valid-parentheses
0042-trapping-rain-water
0044-wildcard-matching
0045-jump-game-ii
0053-maximum-subarray
0055-jump-game
0062-unique-paths
0063-unique-paths-ii

Stack

0032-longest-valid-parentheses
0042-trapping-rain-water

Binary Search

0033-search-in-rotated-sorted-array
0035-search-insert-position
3640-maximum-frequency-of-an-element-after-performing-operations-ii

Backtracking

0037-sudoku-solver
0039-combination-sum
0040-combination-sum-ii
0046-permutations
0047-permutations-ii
0051-n-queens
0052-n-queens-ii
2174-next-greater-numerically-balanced-number

Matrix

0037-sudoku-solver
0048-rotate-image
0054-spiral-matrix
0059-spiral-matrix-ii
0063-unique-paths-ii
2244-number-of-laser-beams-in-a-bank

Monotonic Stack

0042-trapping-rain-water

Simulation

0043-multiply-strings
0054-spiral-matrix
0059-spiral-matrix-ii
2169-simple-bank-system
3616-make-array-elements-equal-to-zero
3768-check-if-digits-are-equal-in-string-after-operations-i

Greedy

0044-wildcard-matching
0045-jump-game-ii
0055-jump-game

Recursion

0044-wildcard-matching
0050-powx-n
0060-permutation-sequence

Depth-First Search

1747-lexicographically-smallest-string-after-applying-operations

Breadth-First Search

1747-lexicographically-smallest-string-after-applying-operations

Enumeration

1747-lexicographically-smallest-string-after-applying-operations
2174-next-greater-numerically-balanced-number

Sorting

0047-permutations-ii
0049-group-anagrams
0056-merge-intervals
3640-maximum-frequency-of-an-element-after-performing-operations-ii

Sliding Window

3640-maximum-frequency-of-an-element-after-performing-operations-ii

Prefix Sum

3616-make-array-elements-equal-to-zero
3640-maximum-frequency-of-an-element-after-performing-operations-ii

Combinatorics

0062-unique-paths
3768-check-if-digits-are-equal-in-string-after-operations-i

Number Theory

3768-check-if-digits-are-equal-in-string-after-operations-i

Counting

2174-next-greater-numerically-balanced-number

Divide and Conquer

0053-maximum-subarray

Design

2169-simple-bank-system

Linked List

0061-rotate-list

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