Algorithm

updated on: 11/06/2021

Leetcode Notes Wikis

Algorithm

This wiki page includes all the solved algorithm problems on LeetCode. The default language is Python 3.

Summary List

• 001 Two Sum - Array
• 002 Add Two Numbers (medium) - Linked List
• 007 Reverse Integer - Math, Stack
• 009 Palindrome Number - String, Math
• 013 Roman To Integer - Hash Table, String
• 014 Longest Common Prefix - Binary Search
• 021 Merge Two Sorted Lists - Linked List
• 028 Implement strStr() - Two Pointer
• 035 Search Insert Position - Pointer
• 036 Valid Sudoku (medium) - Hash Table
• 053 Maximum Subarray - DP
• 073 Set Matrix Zeroes (medium) - Matrix, Arrays
• 088 Merge Sorted Array - Two Pointer
• 121 Best Time to Buy and Sell Stock - DP
• 141 Linked List Cycle - Hash Table, Linked List
• 118 Pascal's Triangle - Math
• 203 Remove Linked List Elements - Linked List, Recursion
• 206 Reverse Linked List - Linked List, Iteration, Recursion
• 217 Contains Duplicates - Arrays
• 242 Valid Anagram - Counter
• 350 Intersection of Two Arrays II - Hash Table, Two Pointer
• 383 Ransom Note - String
• 387 First Unique Character in a String - String
• 566 Reshape the Matrix - Two Pointer