Armstrong

#include <stdio.h>
int main()
{
    int n,r, remainder, result = 0;

    printf("Enter a three digit integer: ");
    scanf("%d", &n);

      r=n;

    while (r!= 0)
    {
        remainder = r%10;
        result += remainder*remainder*remainder;
        r /= 10;
    }

    if(result == n)
        printf("%d is an Armstrong number.",n);
    else
        printf("%d is not an Armstrong number.",n);

    return 0;
}