The problem “Find elements which are present in first array and not in second” states that you are given two arrays. Arrays consist of all the integers. You have to find out the numbers which will not be present in the second array but present in the first array. Example …
The problem “Difference between highest and least frequencies in an array” states that suppose that you have an integer array. The problem statement asks to find out the maximum difference between the highest frequency and lowest frequency of two distinct numbers in an array. Example arr[] = {1, 2, 3, …
The problem “Find four elements that sum to a given value (Hashmap)” states that suppose, you have an integer array and a number called sum. The problem statement asks to determine if four elements present in the array which sums up to the given value “sum”. If true, then function …
The problem “Longest subsequence such that difference between adjacents is one” states that you are given an integer array. Now you need to find the length of longest subsequence such that the difference of adjacent elements is 1. Example 1 2 3 4 7 5 9 4 6 Explanation As …
The problem “Find all triplets with zero sum” states that you are given an array containing positive and negative number both. The problem statement asks to find out the triplet with the sum equal to 0. Example arr[] = {0,-2,1,3,2,-1} (-2 -1 3) (-2 0 2) (-1 0 1) Explanation …
The problem “k-th missing element in increasing sequence which is not present in a given sequence” states that you are given two arrays. One of them is arranged in ascending order and another normal unsorted array with number k. Find the kth missing element which is not present in normal …
The problem “How to check if two given sets are disjoint?” states that suppose you are given two sets in the form of array say set1[] and set2[]. Your task is to find out whether the two sets are Disjoint Sets or not. Example inputSet1[] = {1, 15, 8, 9, …
The problem “Check if a given array contains duplicate elements within k distance from each other” states that we have to check for duplicates in given unordered array within the range of k. Here the value of k is smaller than the given array. Examples K = 3 arr[] = …
The problem “Check if two arrays are equal or not” states that you are given two arrays. The problem statement says that you have to determine if given arrays are equal or not. Example arr1[] = { 1, 4, 2, 5, 2 }; arr2[] = { 2, 1, 5, 4, …
The problem “Pair with given product” states that you are given an integer array and a number “x”. Determine, whether an array consists of a pair of which product equals ‘x’ exist in the given input array. Example [2,30,12,5] x = 10 Yes, it has Product Pair Explanation Here 2 …