Suppose, we are performing a physics experiment. We are given n pairs of values and a threshold value k. Each the first value of the pair is added to a total value and the second value of the pair is also added to another total value. Now, we check if a total value is minimum or the (k - total) value is minimum. We do this for both the totals and then add them and print the output.So, if the input is like n = 4, k = 20, values = {{3, 5}, {4, 3}, {2, 1}, {4, 4}}, then ... Read More

In this article, we will understand how to rotate matrix elements using Java. A matrix is a representation of the elements in rows and columns. Matrix rotation is shifting the position of each element of the matrix by 1 position towards its right or left. We will be using two approaches: one where the matrix is rotated based on user input, and another where the matrix is defined within the code. Problem Statement Write a Java program to rotate matrix elements. Below is a demonstration of the same − Input The matrix is defined as 1 2 3 4 5 6 ... Read More

Suppose, we are given two k-digit numbers m and n. The digits of the numbers are randomly shuffled and then compared. We have to find out which number has a higher probability to be greater.So, if the input is like n = 231, m = 337, k = 3, then the output will be ‘Second’, or the second number has a higher probability to be greater.StepsTo solve this, we will follow these steps −s1 := convert n to string s2 := convert m to string f := 0, s = 0 for initialize i := 0, when i < k, ... Read More

Suppose, we are given n strings in an array 'input'. The strings are names, we have to find out if they are male or female names. If a name ends with 'a', 'e', 'i', or 'y'; it can be said that it is a female name. we print 'male' or 'female' for each input in the string.So, if the input is like n = 5, input = {"Lily", "Rajib", "Thomas", "Riley", "Chloe"}, then the output will be Female, Male, Male, Female, Female.StepsTo solve this, we will follow these steps −for initialize i := 0, when i < n, update (increase ... Read More

Suppose, we are given a grid of dimensions m x n. An object is placed at cell (ix, iy) and we have to find the object scanning from a starting position (sx, sy). The scanning algorithm scans the ith row and the j-th column of the grid if it is located at cell (i, j) of the grid. If it has found the object, the scanning stops; if not, the scanning pointer moves to cell in position (i + 1, j + 1) and then scans in the same way. This continues until the item is found. Given the positions, ... Read More

Suppose, there are 'a' number of matches and 'b' number of press conferences to be held in a stadium in a particular week. There are two cafeterias, one in the player dressing room and one in the press conference area. There are two soft drink dispensers in the cafeterias and they need to be filled at the start of the week. The dressing room cafeteria drink dispenser is used heavily, and it needs to be refilled after every 'c' games and the conference area cafeteria's dispenser needs to be refilled after every 'd' events. The stadium maintenance committee can order ... Read More

Suppose, there are three groups of people coming to a party. The first group of people likes butterscotch ice cream and do not like any other flavors of ice cream, the second group of people only dislikes strawberry ice cream and like every other flavor, and the third group likes all kinds of ice cream. Now, there are x people of the first group, y people of the second group, and z people of the third group are coming to a party, and everyone should have at least one icecream of their liking. The party organizers have brought a packs ... Read More

Suppose, we are given a grid that has 2 rows and n columns. A robot is at position (0, 0) in the grid and wants to visit (1, n - 1) by visiting adjacent and corner cells to its current location. We are given the grid in an array of strings, a cell is blocked if it is marked '#' and it is accessible if it is marked '.'. We have to find out if the robot can visit cell (1, n - 1) from the cell (0, 0).So, if the input is like n = 4, grid = {".##.", ... Read More

An array is a group of similar elements stored together in a single variable which take contiguous memory locations. Arrays help us to store and manage multiple values of the same type, like a list of numbers or names.In this article, we will solve a beginner level problem in C++ that involves decreasing all the even numbers in an array by 1. Program to Decrease Even Numbers in an Array How to Check a if Number is Even in C++? C++ Program to Decrease Even Numbers ... Read More

Suppose, we are given a matrix of n rows and m columns. We have to find out the number of elements present in it. We find out the value and display it as output.So, if the input is like n = 20, m = 15, then the output will be 300.StepsTo solve this, we will follow these steps −return n * mExampleLet us see the following implementation to get better understanding −#include using namespace std; #define N 100 int solve(int n, int m) {    return n * m; } int main() {    int n = 20, m = 15;    cout