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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
0026-remove-duplicates-from-sorted-array
0027-remove-element
0045-jump-game-ii
0055-jump-game
0080-remove-duplicates-from-sorted-array-ii
0121-best-time-to-buy-and-sell-stock
0122-best-time-to-buy-and-sell-stock-ii
0169-majority-element
0189-rotate-array
0219-contains-duplicate-ii
0228-summary-ranges
0274-h-index
0283-move-zeroes
0605-can-place-flowers
0643-maximum-average-subarray-i
0724-find-pivot-index
1319-unique-number-of-occurrences
1392-find-the-difference-of-two-arrays
1528-kids-with-the-greatest-number-of-candies
1833-find-the-highest-altitude

Two Pointers

0026-remove-duplicates-from-sorted-array
0027-remove-element
0028-find-the-index-of-the-first-occurrence-in-a-string
0080-remove-duplicates-from-sorted-array-ii
0125-valid-palindrome
0151-reverse-words-in-a-string
0189-rotate-array
0202-happy-number
0283-move-zeroes
0392-is-subsequence
1894-merge-strings-alternately

Hash Table

0001-two-sum
0013-roman-to-integer
0169-majority-element
0202-happy-number
0205-isomorphic-strings
0219-contains-duplicate-ii
0242-valid-anagram
0290-word-pattern
0383-ransom-note
1319-unique-number-of-occurrences
1392-find-the-difference-of-two-arrays

Divide and Conquer

0004-median-of-two-sorted-arrays
0169-majority-element

Sorting

0169-majority-element
0242-valid-anagram
0274-h-index

Counting

0169-majority-element
0383-ransom-note

Math

0002-add-two-numbers
0013-roman-to-integer
0189-rotate-array
0202-happy-number
1146-greatest-common-divisor-of-strings

Dynamic Programming

0045-jump-game-ii
0055-jump-game
0121-best-time-to-buy-and-sell-stock
0122-best-time-to-buy-and-sell-stock-ii
0392-is-subsequence

Greedy

0045-jump-game-ii
0055-jump-game
0122-best-time-to-buy-and-sell-stock-ii
0605-can-place-flowers

String

0013-roman-to-integer
0014-longest-common-prefix
0020-valid-parentheses
0028-find-the-index-of-the-first-occurrence-in-a-string
0058-length-of-last-word
0125-valid-palindrome
0151-reverse-words-in-a-string
0205-isomorphic-strings
0242-valid-anagram
0290-word-pattern
0383-ransom-note
0392-is-subsequence
1146-greatest-common-divisor-of-strings
1894-merge-strings-alternately

Trie

0014-longest-common-prefix

String Matching

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

Sliding Window

0219-contains-duplicate-ii
0643-maximum-average-subarray-i

Prefix Sum

0724-find-pivot-index
1833-find-the-highest-altitude

Design

0969-number-of-recent-calls

Queue

0969-number-of-recent-calls

Data Stream

0969-number-of-recent-calls

Linked List

0002-add-two-numbers
0206-reverse-linked-list

Recursion

0002-add-two-numbers
0206-reverse-linked-list

Tree

0104-maximum-depth-of-binary-tree
0904-leaf-similar-trees

Depth-First Search

0104-maximum-depth-of-binary-tree
0904-leaf-similar-trees

Breadth-First Search

0104-maximum-depth-of-binary-tree

Binary Tree

0104-maximum-depth-of-binary-tree
0904-leaf-similar-trees

Stack

0020-valid-parentheses

Counting Sort

0274-h-index

Binary Search

0004-median-of-two-sorted-arrays

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