In this article, we are given an array of integers. We are tasked to find the bitwise OR of all the numbers present in the given range, for example, Input: arr[] = {1, 3, 1, 2, 3, 4}, q[] = {{0, 1}, {3, 5}} Output: 3 7 1 OR 3 ... Read More

In this article we will discuss a problem of finding the number of elements present in the given range that have a kth bit set, for example −Input : arr[] = { 4, 5, 7, 2 } Query 1: L = 2, R = 4, K = 4 Query 2: ... Read More

In this article, we are given a problem, we are given an array, and there are two types of queries we need to answer.Type 0 − we have to calculate the number of greater elements than or equal to x(given value).Type 1 − we have to calculate the number of ... Read More

In this article, we have given a problem in which we are given an array of integers, and we are tasked to find the bitwise AND of the given ranges, for example 7minus;Input: arr[ ] = {1, 3, 1, 2, 32, 3, 3, 4, 4}, q[ ] = {{0, 1}, ... Read More

A pentagonal pyramidal number is equal to the number of items in a pentagonal base pyramid. Look at some Pentagonal numbers below.Sum of Pentagonal Numbers till N equals to Nth Pentagonal Pyramidal Number. In this article, we will discuss finding the Nth Pentagonal Pyramidal number, for exampleInput : N = ... Read More

In the given problem, we are given an integer n we need to find Pn, i.e., the pell number in that position. Now, as we know, pell number is a part of a series given by this formula −Pn = 2*Pn-1 + Pn-2With first two starting numbers − P0 = ... Read More

Discuss a problem based on expanding the matrix. Expanding matrix is a matrix whose size continuously increases by some factor.Here we have a matrix of characters whose size is expanding by a factor of 2, i.e., if the original size of the matrix is N * N, then the size ... Read More

In this article we are given values of several rows and several columns. We need to print a Box pattern such that 1’s get printed on 1st row, 1st column, last row, last column, and 0’s get printed on remaining elements. For example −Input : rows = 5, columns = ... Read More

Given a binary search tree, and we are required to reverse its path from a particular key, for example.Approach to Find the SolutionIn this approach, we will make a queue and push all the nodes until we get the root.Example  #include using namespace std; struct node {    int ... Read More

In this article, we have an array containing distinct elements. We need to print the pairs of positive-negative values in the array with the same absolute value and print them in sorted order for examples −Input : arr[] = { 1, -1, 11, 12, 56, 77, -56, -12, -88} Output ... Read More