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

LeetCode Topics

Array

0001-two-sum
0004-median-of-two-sorted-arrays
0011-container-with-most-water
0014-longest-common-prefix
0015-3sum
0018-4sum
0026-remove-duplicates-from-sorted-array
0031-next-permutation
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0037-sudoku-solver
0039-combination-sum
0046-permutations
0048-rotate-image
0051-n-queens
0054-spiral-matrix
0073-set-matrix-zeroes
0074-search-a-2d-matrix
0075-sort-colors
0078-subsets
0081-search-in-rotated-sorted-array-ii
0088-merge-sorted-array
0090-subsets-ii
0118-pascals-triangle
0121-best-time-to-buy-and-sell-stock
0136-single-number
0152-maximum-product-subarray
0153-find-minimum-in-rotated-sorted-array
0162-find-peak-element
0169-majority-element
0189-rotate-array
0204-count-primes
0229-majority-element-ii
0238-product-of-array-except-self
0240-search-a-2d-matrix-ii
0283-move-zeroes
0287-find-the-duplicate-number
0410-split-array-largest-sum
0485-max-consecutive-ones
0540-single-element-in-a-sorted-array
0560-subarray-sum-equals-k
0704-binary-search
0852-peak-index-in-a-mountain-array
0875-koko-eating-bananas
0905-sort-array-by-parity
1011-capacity-to-ship-packages-within-d-days
1283-find-the-smallest-divisor-given-a-threshold
1482-minimum-number-of-days-to-make-m-bouquets
1539-kth-missing-positive-number
1752-check-if-array-is-sorted-and-rotated
1901-find-a-peak-element-ii
2089-find-target-indices-after-sorting-array
2149-rearrange-array-elements-by-sign
2965-find-missing-and-repeated-values
3718-smallest-missing-multiple-of-k
3875-construct-uniform-parity-array-i

Bit Manipulation

0078-subsets
0090-subsets-ii
0136-single-number
0231-power-of-two
0287-find-the-duplicate-number
0371-sum-of-two-integers

Hash Table

0001-two-sum
0013-roman-to-integer
0037-sudoku-solver
0073-set-matrix-zeroes
0169-majority-element
0205-isomorphic-strings
0229-majority-element-ii
0242-valid-anagram
0560-subarray-sum-equals-k
0567-permutation-in-string
2965-find-missing-and-repeated-values
3718-smallest-missing-multiple-of-k

Divide and Conquer

0004-median-of-two-sorted-arrays
0169-majority-element
0240-search-a-2d-matrix-ii

Sorting

0015-3sum
0018-4sum
0075-sort-colors
0088-merge-sorted-array
0169-majority-element
0229-majority-element-ii
0242-valid-anagram
0905-sort-array-by-parity
2089-find-target-indices-after-sorting-array

Counting

0169-majority-element
0229-majority-element-ii

Math

0002-add-two-numbers
0007-reverse-integer
0009-palindrome-number
0013-roman-to-integer
0048-rotate-image
0050-powx-n
0189-rotate-array
0204-count-primes
0231-power-of-two
0263-ugly-number
0371-sum-of-two-integers
0507-perfect-number
0509-fibonacci-number
1025-divisor-game
1688-count-of-matches-in-tournament
2769-find-the-maximum-achievable-number
2965-find-missing-and-repeated-values
3658-gcd-of-odd-and-even-sums
3875-construct-uniform-parity-array-i

Recursion

0002-add-two-numbers
0050-powx-n
0206-reverse-linked-list
0231-power-of-two
0509-fibonacci-number

Dynamic Programming

0118-pascals-triangle
0121-best-time-to-buy-and-sell-stock
0131-palindrome-partitioning
0152-maximum-product-subarray
0410-split-array-largest-sum
0509-fibonacci-number
1025-divisor-game

Two Pointers

0011-container-with-most-water
0015-3sum
0018-4sum
0019-remove-nth-node-from-end-of-list
0026-remove-duplicates-from-sorted-array
0031-next-permutation
0075-sort-colors
0088-merge-sorted-array
0125-valid-palindrome
0151-reverse-words-in-a-string
0189-rotate-array
0283-move-zeroes
0287-find-the-duplicate-number
0344-reverse-string
0443-string-compression
0567-permutation-in-string
0905-sort-array-by-parity
2149-rearrange-array-elements-by-sign

Greedy

0011-container-with-most-water
0410-split-array-largest-sum

Prefix Sum

0238-product-of-array-except-self
0410-split-array-largest-sum
0560-subarray-sum-equals-k

Binary Search

0004-median-of-two-sorted-arrays
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0074-search-a-2d-matrix
0081-search-in-rotated-sorted-array-ii
0153-find-minimum-in-rotated-sorted-array
0162-find-peak-element
0240-search-a-2d-matrix-ii
0287-find-the-duplicate-number
0410-split-array-largest-sum
0540-single-element-in-a-sorted-array
0704-binary-search
0852-peak-index-in-a-mountain-array
0875-koko-eating-bananas
1011-capacity-to-ship-packages-within-d-days
1283-find-the-smallest-divisor-given-a-threshold
1482-minimum-number-of-days-to-make-m-bouquets
1539-kth-missing-positive-number
1901-find-a-peak-element-ii
2089-find-target-indices-after-sorting-array

Brainteaser

1025-divisor-game

Game Theory

1025-divisor-game

String

0013-roman-to-integer
0014-longest-common-prefix
0125-valid-palindrome
0131-palindrome-partitioning
0151-reverse-words-in-a-string
0205-isomorphic-strings
0242-valid-anagram
0344-reverse-string
0443-string-compression
0567-permutation-in-string
0796-rotate-string
1021-remove-outermost-parentheses
1910-remove-all-occurrences-of-a-substring

Stack

1021-remove-outermost-parentheses
1910-remove-all-occurrences-of-a-substring

Simulation

0054-spiral-matrix
1688-count-of-matches-in-tournament
1910-remove-all-occurrences-of-a-substring
2149-rearrange-array-elements-by-sign

Sliding Window

0567-permutation-in-string

Number Theory

0204-count-primes
3658-gcd-of-odd-and-even-sums

Enumeration

0204-count-primes

Matrix

0037-sudoku-solver
0048-rotate-image
0054-spiral-matrix
0073-set-matrix-zeroes
0074-search-a-2d-matrix
0240-search-a-2d-matrix-ii
1901-find-a-peak-element-ii
2965-find-missing-and-repeated-values

Trie

0014-longest-common-prefix

Memoization

0509-fibonacci-number

Backtracking

0037-sudoku-solver
0039-combination-sum
0046-permutations
0051-n-queens
0078-subsets
0090-subsets-ii
0131-palindrome-partitioning

Algorithm X

0037-sudoku-solver
0051-n-queens

Dancing Links

0037-sudoku-solver

Boyer–Moore Majority Vote Algorithm

0169-majority-element
0229-majority-element-ii

Quicksort

0075-sort-colors

Bubble Sort

0075-sort-colors

Bracket Sequences

1021-remove-outermost-parentheses

String Matching

0796-rotate-string

Linked List

0002-add-two-numbers
0019-remove-nth-node-from-end-of-list
0206-reverse-linked-list
0237-delete-node-in-a-linked-list
0328-odd-even-linked-list