Coding Interview Questions

Problem Statement: Given an array, find the top K frequency elements Solution Explanation: We will use frequency array and then use min heap…

Problem Statement: You are given an array and a value k. Then yoou need to return the k th largest elements. Example: Input: arr = [1, 2, 3,…

Problem Statement: Given an array and a value k, you need to find the minimum product of k integers Example: Input: arr [] = [1, 5, 3, 2, 6] k…

Problem Statement: You are given a 2D array and a value k. You need to return the k closest to the origin (0,0). Example: Input: points =…

Problem Statement: You are given level order of the Complete Binary Tree. Check if the Binary Tree is a valid Min Heap Example: Input: arr[] =…

Problem Statement: You are given an infinite stream of number and a number k. You need to return the kth largest element after every insert.…

Problem Statement: You are given an array, you need to check if the array represents Binary Max Heap Example: Input: arr = {7, 3, 6, 1, 2, 4,…

Problem Statement: You are given an array representation of Min Heap, convert into Max Heap Example: Input: arr[] = [3, 5, 9, 6, 8, 20, 10]…

Problem Statement: You are given a sorted array and a number k and a number x. You need to return k elements that are closest to x Example:…

Problem Statement: You are given a binary tree, you need to check if the binary tree satisfies heap property or not. Below are the conditions…