LeetCode Solutions

Problem Difficulty Tags 1. Two Sum Easy *2. Add Two Numbers Medium ๐Ÿ”— Linked List 9. Palindrome Number Easy 13. Roman to Integer Easy 14. Longest Common Prefix Easy String 20. Valid Parentheses Easy 21. Merge Two Sorted Lists Easy *35. Search Insert Position Easy ๐ŸŒณ Binary Tree 53. Maximum Subarray Medium *57. Insert Interval Medium Array 66. Plus One Easy Array 67. Add Binary Easy ๐ŸŒณ Binary Tree 70. Climbing Stairs Easy *98. Validate Binary Search Tree Medium ๐ŸŒณ Binary Tree 100. Same Tree Easy ๐ŸŒณ Binary Tree 101. Symmetric Tree Easy ๐ŸŒณ Binary Tree *102. Binary Tree Level Order Traversal Medium ๐ŸŒณ Binary Tree 104. Maximum Depth of Binary Tree Easy ๐ŸŒณ Binary Tree *108. Convert Sorted Array to Binary Search Tree Easy ๐ŸŒณ Binary Tree 110. Balanced Binary Tree Easy ๐ŸŒณ Binary Tree 121. Best Time to Buy and Sell Stock Easy 136. Single Number Easy ๐Ÿ’ป Bits 141. Linked List Cycle Easy ๐Ÿ”— Linked List 155. Min Stack Medium Stack *190. Reverse Bits Easy ๐Ÿ’ป Bits 191. Number of 1 Bits Easy ๐Ÿ’ป Bits *199. Binary Tree Right Side View Medium ๐ŸŒณ Binary Tree 169. Majority Element Easy 206. Reverse Linked List Easy ๐Ÿ”— Linked List 217. Contains Duplicate Easy 232. Implement Queue using Stacks Easy 234. Palindrome Linked List Easy ๐Ÿ”— Linked List 235. Lowest Common Ancestor of a Binary Search Tree Medium ๐ŸŒณ Binary Tree *237. Delete Node in a Linked List Medium ๐Ÿ”— Linked List 268. Missing Number Easy Array 278. First Bad Version Easy 283. Move Zeroes Easy *287. Find the Duplicate Number Medium 338. Counting Bits Easy 383. Ransom Note Easy 409. Longest Palindrome Easy 412. Fizz Buzz Easy *542. 01 Matrix Medium Dynamic Programming 543. Diameter of Binary Tree Easy ๐ŸŒณ Binary Tree *572. Subtree of Another Tree Easy ๐ŸŒณ Binary Tree 704. Binary Search Easy ๐ŸŒณ Binary Tree 733. Flood Fill Easy 844. Backspace String Compare Easy 876. Middle of the Linked List Easy Array 976. Largest Perimeter Triangle Easy Array 977. Squares of a Sorted Array Easy ๐Ÿ”— Linked List 1337. The K Weakest Rows in a Matrix Easy 1342. Number of Steps to Reduce a Number to Zero Easy ๐Ÿ’ป Bits 1672. Richest Customer Wealth Easy Matrix 1920. Build Array from Permutation Easy Array 1929. Concatenation of Array Easy Array 2095. Delete the Middle Node of a Linked List Medium ๐Ÿ”— Linked List 2235. Add Two Integers Easy Math Legend: ...

August 29, 2022