External variables are also known as global variables. These variables are defined outside the function. These variables are available globally throughout the function execution. The value of global variables can be modified by the functions. “extern” keyword is used to declare and define the external variables.Scope − They are not ... Read More

A matrix is a rectangular array of numbers that is arranged in the form of rows and columns.An example of a matrix is as follows.A 3*3 matrix has 3 rows and 3 columns as shown below −8 6 3 7 1 9 5 1 9A program that multiplies two matrices ... Read More

The Greatest Common Divisor (GCD) of two numbers is the largest number that divides both of them.For example: Let’s say we have two numbers are 45 and 27.45 = 5 * 3 * 3 27 = 3 * 3 * 3So, the GCD of 45 and 27 is 9.A program ... Read More

A number is even if it is divisible by two and odd if it is not divisible by two.Some of the even numbers are −2, 4, 6, 8, 10, 12, 14, 16Some of the odd numbers are −1, 3, 5, 7, 9, 11, 13, 15, 17Check Whether Number is Even ... Read More

The largest number among three numbers can be found using if statement multiple times. This is given in a program as follows −Example Live Demo#include using namespace std; int main() {    int a = 5 ,b = 1 ,c = 9;    if(a>b) {       if(a>c)       cout

Quotient and Remainder are parts of division along with dividend and divisor.The number which we divide is known as the dividend. The number which divides the dividend is known as the divisor. The result obtained after the division is known as the quotient and the number left over is the ... Read More

The fibonacci series contains numbers in which each term is the sum of the previous two terms. This creates the following integer sequence −0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377…….The recurrence relation that defines the fibonacci numbers is as follows −F(n) = ... Read More

Given a string that has set of words and spaces, our task is to move all spaces to front of string, by traversing the string only once. We will solve this problem quickly in Python using List Comprehension.ExampleInput: string = "python program" Output: string= “ pythonprogram"AlgorithmStep1: input a string with ... Read More

Here n is given value which is positive number m is the number of times till which the series run. Our task is to calculate this series.AlgorithmStep 1: Input n, m; Step 2: Converting the number to string. Step 3: Initializing result as number and string. Step 4: Adding remaining ... Read More

Pseudo class is to show different state of an element or a css selector. visited pseudo class is to show that the link is already visited.This pseudo class is mostly being associated with link.Syntaxa:visited { color:green;}Let's check the actual usage of :visited pseudo class with different scenarios, as follows -Example Live ... Read More