0000 - 0099
Solutions categorised by Problem IDs
0001 - Two Sum (Easy)Author: @wkw, @ganajayant, @skoden, @radojicic23, @DongDong | https://leetcode.com/problems/two-sum/0002 - Add Two Numbers (Medium)Author: @ColeB2, @radojicic23 | https://leetcode.com/problems/add-two-numbers/0003 - Longest Substring Without Repeating Characters (Medium)Author: @vigneshshiv, @MithunPrabhu777, @AnshikaAnand222, @radojicic23 | https://leetcode.com/problems/longest-substring-without-repeating-characters/0004 - Median of Two Sorted ArraysAuthor: @ColeB2 | https://leetcode.com/problems/median-of-two-sorted-arrays/0005 - Longest Palindromic Substring (Medium)Author: @wkw | https://leetcode.com/problems/longest-palindromic-substring/0006 - Zigzag Conversion (Medium)Author: @wkw | https://leetcode.com/problems/zigzag-conversion/0007 - Reverse Integer (Medium)Author: @vigneshshiv, @MithunPrabhu777, @radojicic23 | https://leetcode.com/problems/reverse-integer/0009 - Palindrome Number (Easy)Author: @tostream, @ganajayant, @vigneshshiv, @radojicic23 | https://leetcode.com/problems/palindrome-number/0010 - Regular Expression Matching (Hard)Author: @ColeB2 | https://leetcode.com/problems/regular-expression-matching/0011 - Container With Most Water (Medium)Author: @wkw, @ganajayant, @radojicic23 | https://leetcode.com/problems/container-with-most-water/0012 - Integer to Roman (Medium)Author: @jessicaribeiroalves, @radojicic23 | https://leetcode.com/problems/integer-to-roman/0013 - Roman to Integer (Easy)Author: @jessicaribeiroalves, @radojicic23 | https://leetcode.com/problems/roman-to-integer/0014 - Longest Common Prefix (Easy)Author: @vigneshshiv, @radojicic23 | https://leetcode.com/problems/longest-common-prefix/0017 - Letter Combinations of a Phone Number (Medium)Author: @vigneshshiv, @radojicic23, @ColeB2 | https://leetcode.com/problems/letter-combinations-of-a-phone-number/0019 - Remove Nth Node From End of List (Easy)Author: @vigneshshiv, @wkw, @radojicic23 | https://leetcode.com/problems/remove-nth-node-from-end-of-list/0020 - Valid Parentheses (Easy)Author: @vigneshshiv | https://leetcode.com/problems/valid-parentheses/0021 - Merge Two Sorted Lists (Easy)Author: @wkw, @ganajayant, @sourav, @radojicic23 | https://leetcode.com/problems/merge-two-sorted-lists/0022 - Generate Parentheses (Medium)Author: @ColeB2, @vigneshshiv | https://leetcode.com/problems/generate-parentheses/description/0023 - Merge k Sorted Lists (Hard)Author: @wkw, @rahulvarma5297, @radojicic23 | https://leetcode.com/problems/merge-k-sorted-lists/0024 - Swap Nodes in Pairs (Medium)Author: @wkw, @ganajayant, @radojicic23| https://leetcode.com/problems/swap-nodes-in-pairs/0025 - Reverse Nodes in k-Group (Hard)Author: @ColeB2 | https://leetcode.com/problems/reverse-nodes-in-k-group/0026 - Remove Duplicates from Sorted Array (Easy)Author: @pankajsirari222, @radojicic23 | https://leetcode.com/problems/remove-duplicates-from-sorted-array/0027 - Remove Element (Easy)Author: @ColeB2, @DongDong | https://leetcode.com/problems/remove-element/0028 - Find the Index of the First Occurrence in a String (Easy)Author: @la-la-Cute, @ganajayant, @radojicic23 | https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/0033 - Search in Rotated Sorted Array (Medium)Author: @vigneshshiv, @radojicic23 | https://leetcode.com/problems/search-in-rotated-sorted-array/0034 - Find First and Last Position of Element in Sorted Array (Medium)Author: @wkw, @ganajayant, @vigneshshiv, @radojicic23 | https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/0035 - Search Insert Position (Easy)Author: @wkw, @ganajayant, @radojicic23 | https://leetcode.com/problems/search-insert-position/0036 - Valid Sudoku (Easy)Author: @vigneshshiv, @radojicic23 | https://leetcode.com/problems/valid-sudoku/0037 - Sudoku Solver (Hard)Author: @vigneshshiv | https://leetcode.com/problems/sudoku-solver/0039 - Combination Sum (Medium)Author: @wkw, @radojicic23, @ColeB2 | https://leetcode.com/problems/combination-sum/0040 - Combination Sum II (Medium)Author: @wkw, @ColeB2, @radojicic23 | https://leetcode.com/problems/combination-sum-ii/0042 - Trapping Rain Water (Hard)Author: @wkw, @vigneshshiv, @radojicic23 | https://leetcode.com/problems/trapping-rain-water/0045 - Jump Game II (Medium)Author: @wkw, @radojicic23 | https://leetcode.com/problems/jump-game-ii/0046 - Permutations (Medium)Author: @wkw, @radojicic23 | https://leetcode.com/problems/permutations/0048 - Rotate Image (Medium)Author: @wkw, @radojicic23 | https://leetcode.com/problems/rotate-image/0049 - Group Anagrams (Medium)Author: @wkw, @ganajayant, @radojicic23 | https://leetcode.com/problems/group-anagrams/0050 - Pow(x, n) (Medium)Author: @wkw, @ColeB2 | https://leetcode.com/problems/powx-n/0051 - N-Queens (Hard)Author: @ColeB2 | https://leetcode.com/problems/n-queens/0053 - Maximum Subarray (Medium)Author: @ColeB2 | https://leetcode.com/problems/maximum-subarray/0054 - Spiral Matrix (Medium)Author: @ColeB2 | https://leetcode.com/problems/spiral-matrix/0055 - Jump Game (Medium)Author: @ColeB2 | https://leetcode.com/problems/jump-game/0056 - Merge Intervals (Medium)Author: @ColeB2, @DongDong | https://leetcode.com/problems/merge-intervals/0057 - Insert Interval (Medium)Author: @wkw, @radojicic23 | https://leetcode.com/problems/insert-interval/0058 - Length of Last WordAuthor: @ColeB2 | https://leetcode.com/problems/length-of-last-word/0061 - Rotate List (Medium)Author: @wkw, @radojicic23 | https://leetcode.com/problems/rotate-list/0062 - Unique Paths (Medium)Author: @wkw, @ganajayant, @radojicic23 | https://leetcode.com/problems/unique-paths/0063 - Unique Paths II (Medium)Author: @wkw | https://leetcode.com/problems/unique-paths-ii/0066 - Plus One (Easy)Author: @ColeB2 | https://leetcode.com/problems/plus-one/0067 - Add Binary (easy)Author: @DoubleSpicy | https://leetcode.com/problems/add-binary/0069 - Sqrt(x) (Easy)Author: @wkw, @radojicic23 | https://leetcode.com/problems/sqrtx/0070 - Climbing Stairs (Easy)Author: @aryankashyap7, @radojicic23 | https://leetcode.com/problems/climbing-stairs/0072 - Edit Distance (Hard)Author: @wkw, @ColeB2 | https://leetcode.com/problems/edit-distance/0073 - Set Matrix Zeroes (Medium)Author: @ColeB2 | https://leetcode.com/problems/set-matrix-zeroes/0074 - Search a 2D Matrix (Medium)Author: @wkw, @ganajayant, @radojicic23| https://leetcode.com/problems/search-a-2d-matrix/0075 - Sort Colors (Medium)Author: @ganajayant, @RadhikaChhabra17, @radojicic23 | https://leetcode.com/problems/sort-colors/0076 - Minimum Window Substring (Hard)Author: @vigneshshiv | https://leetcode.com/problems/minimum-window-substring/0077 - Combinations (Medium)Author: @wkw | https://leetcode.com/problems/combinations/0078 - Subsets (Medium)Author: @wkw, @vigneshshiv | https://leetcode.com/problems/subsets/0079 - Word Search (Medium)Author: @ColeB2 | https://leetcode.com/problems/word-search/0084 - Largest Rectangle in Histogram (Hard)Author: @ColeB2| https://leetcode.com/problems/largest-rectangle-in-histogram/0088 - Merge Sorted Array (Easy)Author: @saishreekouda, @deepanshu-rawat6, @vigneshshiv, @radojicic23 | https://leetcode.com/problems/merge-sorted-array/0090 - Subsets II (Medium)Author: @ColeB2 | https://leetcode.com/problems/subsets-ii/0091 - Decode Ways (Medium)Author: @ColeB2, @heder, @wkw | https://leetcode.com/problems/decode-ways/0093 - Restore IP Addresses (Medium)Author: @wkw | https://leetcode.com/problems/restore-ip-addresses/0094 - Binary Tree Inorder Traversal (Easy)Author: @wkw, @ganajayant, @vigneshshiv, @radojicic23, @jit | https://leetcode.com/problems/binary-tree-inorder-traversal/0097 - Interleaving String (Medium)Author: @ColeB2 | https://leetcode.com/problems/interleaving-string/0098 - Validate Binary Search Tree (Medium)Author: @dhanu084, @vigneshshiv, @radojicic23 | https://leetcode.com/problems/validate-binary-search-tree/