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 9
Valid Perfect Square Given a positive integer num, write a function which returns True if num is a ...
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 ...
May Leetcode Challenge - Day 5
Problem First Unique Character in a String Given a string, find the first non-repeating character i ...
May Leetcode Challenge - Day 4
Problem Number Complement Given a positive integer, output its complement number. The complement st ...
May Leetcode Challenge - Day 3
Problem Ransom Note Given an arbitrary ransom note string and another string containing letters fro ...