Sum of Digits – SchoolCodeHub

Given a number the task is to calculate the sum of digits.

Example: 253. 2+5+3 = 10.

#include <stdio.h>
int main()
{
    int n=0,r=0,sum=0;
    printf("Enter a number: ");
    scanf("%d",&n);
    while(n>0)
    {
        r=n%10;
        sum=sum+r;
        n=n/10;
    }
    printf("Sum of digits is %d",sum);
    return 0;
}