WHILE LOOP

For example, we are going to make a program to count down      using a while loop:

// custom countdown using while

INPUT-

#include <iostream.h>

int main ()

{

int n;

cout << "Enter the starting number > ";

cin >> n;

while (n>0) {

cout << n << ", ";

 --n;

}

cout << "FIRE!";

return 0;

}

OUTPUT-

Enter the starting number

> 8

8, 7, 6, 5, 4,

3, 2, 1, FIRE!