In this problem, we are given an array arr[] of size n. Our task is to create a program to find the sum of XOR of sum of all pairs in an array.Let’s see an example to understand the problem,  Input: arr[5, 7, 9]Output: 22Explanation: (5+5) ^ (5+7) ^ (5+9) ^ (7+5) ^ ... Read More

In this problem, we are given two strings str1 and str2. Our task is to create a program to Print all possible ways to convert one string into another string. Problem Description: Here, we need to find all possible ways using which we can convert str1 to str2. While converting, we can perform ... Read More

In this problem, we are given two values k1 and k2 (k1 < k2), and the root of the binary search tree. Our task is to create a program to Print BST keys in given Range. Problem Description: We will print all the keys of the tree from n1 to n2 in ... Read More

In this problem, we are given a matrix mat of size mXn of integer values. Our task is to create a program to Print cells with same rectangular sums in a matrix.Problem description: We will be finding a cell in the matrix in such a way that the sum of sub-matrices ... Read More

In this problem, we are given an array arr[] of size n consisting of positive and negative values and an integer k. Our task is to find the maximum average subarray of k length. Let’s take an example to understand the problem,  Input: arr[] = {4, -1, 5, 6, -2, 4} k ... Read More

In this problem, we are given an array arr[] of size n consisting of positive values. Our task is to find maximum in an array without using Relational Operators. Let’s take an example to understand the problem, Input: arr[] = {5, 1, 6, 7 , 8, 2}Output: 8Solution ApproachSince we need to ... Read More

In this problem, we are given two values x and y. Our task is to find maximum among x^(y^2) or y^(x^2) where x and y are given. Let’s take an example to understand the problem,  Input: x = 4, y = 3Output: 3^(4^2)Explanation: x^(y^2) = 4^(3^2) = 4^9 = 262144y^(x^2) = 3^(4^2) = 3^16 ... Read More

In this problem, we are given a Binary Tree. Our task is to find maximum among all right nodes in Binary Tree. Problem Description: Here, we need to find the maximum value amongst all right child nodes of the binary Tree.Let’s take an example to understand the problem,  Input: Output: 9Explanation: All right nodes are: ... Read More

In this problem, we are given an  array arr[] and a number k. Our task is to Find the maximum (or minimum) sum of a subarray of size k. Let’s take an example to understand the problem,  Input: arr[] = {55, 43, 12, 76, 89, 25, 99} , k = 2Output: 165Explanation:The subarray ... Read More

In this problem, we are given a binary tree. Our task is to Find maximum (or minimum) in Binary Tree. Problem Description: We need to find the nodes of the binary tree that have maximum and minimum value in the binary tree.Let’s take an example to understand the problem,  Input: Output: max = 9 ... Read More