ABC080B - Harshad Number

問題：B - Harshad Number

#include <iostream>
using namespace std;

int main(void) {
    int n, copy_n, sum = 0;

    cin.tie(0);
    ios::sync_with_stdio(false);
    cin >> n;
    copy_n = n;
    while (copy_n >= 1) {
        sum += copy_n % 10;
        copy_n /= 10;
    }

    cout << (n % sum == 0? "Yes" : "No") << "\n";
    return 0;
}