May Leetcode Challenge - Day 14
Implement Trie (Prefix Tree) Implement a trie with insert, search, and startsWith methods. Example ...
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May Leetcode Challenge - Day 13
Remove K Digits Given a non-negative integer num represented as a string, remove k digits from the ...
May Leetcode Challenge - Day 12
Single Element in a Sorted Array You are given a sorted array consisting of only integers where eve ...
May Leetcode Challenge - Day 11
Flood Fill An image is represented by a 2-D array of integers, each integer representing the pixel ...
May Leetcode Challenge - Day 10
Find the Town Judge In a town, there are N people labelled from 1 to N. There is a rumor that one ...
May Leetcode Challenge - Day 8
Problem Check If It Is a Straight Line You are given an array coordinates, coordinates[i] = [x, y], ...
May Leetcode Challenge - Day 7
Problem Cousins in Binary Tree In a binary tree, the root node is at depth 0, and children of each ...
May Leetcode Challenge - Day 6
Problem Majority Element Given an array of size n, find the majority element. The majority element ...