30-Day-LeetCoding-Challenge

LeetCode profile link : https://leetcode.com/saurav2401

Day wise solution of challenges.

Day : Problem Name

Day1: Single Number

Day2: Happy Number

Day3: Maximum Subarray

Day4: Move Zeroes

Day5: Best Time to Buy and Sell Stock ll

Day6: Group Anagrams

Day7: Counting Elements

Day8: Middle of Linked List

Day9: Backspace String Compare

Day10: Min Stack

Day11: Diameter of Binary tree

Day12: Last Stone Weight

Day13: Contiguous Array

Day14: Perform String Shift

Day15: Product of Array Except Self

Day16: Valid Parenthesis String

Day17: Number of Islands

Day18: Minimum Path Sum

Day19: Search in Rotated Sorted Array

Day20: Construct Binary Search Tree from Preorder Traversal

Day21: Leftmost Column with at Least a One

Day22: Subarray Sum Equals K

Day23: Bitwise AND of Numbers Range

Day24: LRU Cache

Day25: Jump Game

Day26: Longest Common Subsequence

Day27: Maximal Square

Day28: First Unique Number

Day29: Binary Tree Maximum Path Sum

Day30: Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree