C programming, Verify whether a number is an Armstrong number or not.

#include <stdio.h>

int main() {

    int num, originalNum, remainder, result = 0;

    printf("Enter a three-digit integer: ");

    scanf("%d", &num);

    originalNum = num;

    while (originalNum != 0) {

       remainder = originalNum % 10;

        

       result += remainder * remainder * remainder;

       originalNum /= 10;

    }

    if (result == num)

        printf("%d is an Armstrong number.", num);

    else

        printf("%d is not an Armstrong number.", num);

    return 0;

}