8.To add Digits of a number

#include <stdio.h>

int main()

{

   int n, sum = 0, remainder;

   printf("Enter an integer\n");

   scanf("%d",&n);

   while(n != 0)

   {

      remainder = n % 10;

      sum = sum + remainder;

      n = n / 10;

   }

   printf("Sum of digits of entered number = %d\n",sum);

   return 0;

}