C Programming Language 025
The following code shows how to write a program to explain DO WHILE. Find sum of even numbers below a number 'n'.
Program
#include <stdio.h>
void main()
{
int i = 2, n, sum = 0;
printf("Enter the value of n: ");
scanf("%d", &n);
do
{
sum = sum + i;
i = i + 2;
} while (i <= n);
printf("%d", sum);
printf("\n");
}Result
Enter the value of n: 4
6