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

LeetCode Topics

Array

0001-two-sum
0011-container-with-most-water
0014-longest-common-prefix
0048-rotate-image
0053-maximum-subarray
0066-plus-one
0073-set-matrix-zeroes
0088-merge-sorted-array
0121-best-time-to-buy-and-sell-stock
0130-surrounded-regions
0167-two-sum-ii-input-array-is-sorted
0169-majority-element
0179-largest-number
0189-rotate-array
0198-house-robber
0200-number-of-islands
0212-word-search-ii
0213-house-robber-ii
0217-contains-duplicate
0238-product-of-array-except-self
0283-move-zeroes
0350-intersection-of-two-arrays-ii
0414-third-maximum-number
0695-max-area-of-island
0747-min-cost-climbing-stairs
0948-sort-an-array
1036-rotting-oranges
1677-matrix-diagonal-sum
1791-richest-customer-wealth
1878-check-if-array-is-sorted-and-rotated

Breadth-First Search

0127-word-ladder
0130-surrounded-regions
0133-clone-graph
0200-number-of-islands
0684-redundant-connection
0695-max-area-of-island
1036-rotting-oranges

Matrix

0048-rotate-image
0073-set-matrix-zeroes
0130-surrounded-regions
0200-number-of-islands
0212-word-search-ii
0695-max-area-of-island
1036-rotting-oranges
1677-matrix-diagonal-sum
1791-richest-customer-wealth

Depth-First Search

0130-surrounded-regions
0133-clone-graph
0200-number-of-islands
0684-redundant-connection
0695-max-area-of-island

Union Find

0130-surrounded-regions
0200-number-of-islands
0684-redundant-connection
0695-max-area-of-island

Hash Table

0001-two-sum
0003-longest-substring-without-repeating-characters
0073-set-matrix-zeroes
0127-word-ladder
0133-clone-graph
0169-majority-element
0217-contains-duplicate
0242-valid-anagram
0350-intersection-of-two-arrays-ii
2053-check-if-all-characters-have-equal-number-of-occurrences

Graph

0133-clone-graph
0684-redundant-connection

String

0003-longest-substring-without-repeating-characters
0014-longest-common-prefix
0020-valid-parentheses
0125-valid-palindrome
0127-word-ladder
0179-largest-number
0212-word-search-ii
0242-valid-anagram
0961-long-pressed-name
2053-check-if-all-characters-have-equal-number-of-occurrences

Backtracking

0212-word-search-ii

Trie

0014-longest-common-prefix
0212-word-search-ii

Math

0009-palindrome-number
0048-rotate-image
0066-plus-one
0069-sqrtx
0070-climbing-stairs
0189-rotate-array
0509-fibonacci-number
1013-fibonacci-number

Dynamic Programming

0053-maximum-subarray
0070-climbing-stairs
0121-best-time-to-buy-and-sell-stock
0198-house-robber
0213-house-robber-ii
0509-fibonacci-number
0747-min-cost-climbing-stairs
1013-fibonacci-number

Memoization

0070-climbing-stairs
0509-fibonacci-number
1013-fibonacci-number

Two Pointers

0011-container-with-most-water
0019-remove-nth-node-from-end-of-list
0088-merge-sorted-array
0125-valid-palindrome
0167-two-sum-ii-input-array-is-sorted
0189-rotate-array
0283-move-zeroes
0350-intersection-of-two-arrays-ii
0961-long-pressed-name

Sorting

0088-merge-sorted-array
0169-majority-element
0179-largest-number
0217-contains-duplicate
0242-valid-anagram
0350-intersection-of-two-arrays-ii
0414-third-maximum-number
0948-sort-an-array

Sliding Window

0003-longest-substring-without-repeating-characters

Counting

0169-majority-element
2053-check-if-all-characters-have-equal-number-of-occurrences

Recursion

0509-fibonacci-number
1013-fibonacci-number

Divide and Conquer

0053-maximum-subarray
0169-majority-element
0948-sort-an-array

Greedy

0011-container-with-most-water
0179-largest-number

Heap (Priority Queue)

0948-sort-an-array

Merge Sort

0948-sort-an-array

Bucket Sort

0948-sort-an-array

Radix Sort

0948-sort-an-array

Counting Sort

0948-sort-an-array

Linked List

0019-remove-nth-node-from-end-of-list

Binary Search

0069-sqrtx
0167-two-sum-ii-input-array-is-sorted
0350-intersection-of-two-arrays-ii

Stack

0020-valid-parentheses

Prefix Sum

0238-product-of-array-except-self

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