We are given an array of words, and we need to find the word whose frequency is the second largest in the array. Let’s assume some simple input and output scenarios Let’s assume we are having an array which consists of elements like [“point, ” “world, ” “articles, ” “articles, ... Read More

In this article, we are given integers in an array, and we must find the smallest number which is greater than 1 that divides all the elements in the array. For example, let us consider a sample array [30, 90, 15, 45, 165]. vector arr = {30, 90, 15, ... Read More

In this article, we are given a linked list that contains elements from 1 to n and duplicates. Elements 1 to n will always be there with duplicates from [1..n]. We need to replace every duplicate element with n+1, n+2, and so on. Lets consider an example 1→2→2→4→5→3→6→6 Next n ... Read More

In this method, we need to replace every element in the given matrix with the maximum Greatest Common Divisor (GCD) of that row and column. Let us look at some input scenarios − Suppose we are given a 2D matrix of dimensions m*n is; Input: [[3, 2, 1, 4] [7, ... Read More

We are given a linked list, and we need to find elements in the given linked list which are greater and present in the right of the current element. The count of these elements needs to be substituted into the current node's value. Let's take a linked list with ... Read More

In this article, we will replace "AB" with "C" in the given string having upper case latin characters. The occurrences of "AB" becomes "C, " but single "A" and "B" are unaffected. Let us look at some input scenarios − Let's have a string "ABOUTME" Input: "ABOUTME" Result: COUTME ... Read More

In this article, we are given an array of integers and a key. We must find the key repeatedly in the array and double it on each find in the array. We need to return the value not present in the array doing this operation. Some input scenarios to look ... Read More

Given a string, find a subsequence with the length, at least two, repeated in the string. The index of the subsequence element numbers must not be in the same order. string s = "PNDPNSP"; print("Repeated subsequence of length 2 or more: ", (check(s) ? "Yes" : "No")); Let us ... Read More

As the given problem says, we need to remove spaces from the string using a string stream. As the name suggests, a string stream converts a string into a stream. It works similar to cin in C++. It associates a string object that can access the string buffer in which ... Read More

We are given an array of elements. We need to find whether the elements in the array are in Geometric Progression (GP) or not after removing any 1 element from the array. We can run out the possibilities and with observations to figure out that the first element is fake, ... Read More