Max Area of Island | Leetcode 695
You are given an m x n binary matrix grid. An island is a group of 1‘s (representing land) connected 4-directionally (horizontal or vertical.) You may assume all four edges of the grid are surrounded by … Read More
Category: Leetcode
Leetcode – 164. Maximum Gap
Given an integer array nums, return the maximum difference between two successive elements in their sorted form. If the array contains less than two elements, return 0. You must write an algorithm that … Read More
Print binary tree in zigzag order | 103. Binary Tree Zigzag Level Order Traversal Leetcode
Write a program to print ZigZag order traversal of a binary tree. For the below binary tree the zigzag order traversal will be 1 3 2 4 5 6 7. Given … Read More
14. Longest Common Prefix
Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string “”. Example 1: Input: strs = … Read More
283. Move Zeroes
Given an integer array nums, move all 0‘s to the end of it while maintaining the relative order of the non-zero elements. Note that you must do this in-place without making a copy … Read More
933. Number of Recent Calls
Problem statement: Number of Recent calls You have a RecentCounter class which counts the number of recent requests within a certain time frame. Implement the RecentCounter class: RecentCounter() Initializes the counter with zero recent requests. … Read More