Problem:
Score : 200 points

Problem Statement

An integer X is called a Harshad number if X is divisible by f(X), where f(X) is the sum of the digits in X when written in base 10.

Given an integer N, determine whether it is a Harshad number.

Constraints

1?N?10^8

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

Print Yes if N is a Harshad number; print No otherwise.

Sample Input 1

12

Sample Output 1

Yes

f(12)=1+2=3. Since 12 is divisible by 3, 12 is a Harshad number.

Sample Input 2

57

Sample Output 2

No

f(57)=5+7=12. Since 57 is not divisible by 12, 12 is not a Harshad number.

Sample Input 3

148

Sample Output 3

No

Solution in C++ (GCC 5.4.1) (judge verdict: Runtime Error)

# include <bits/stdc++.h>
using namespace std;

int main () {
  int N,f;
  cin >> N;
  f = 0;
  
  for (int i = 8; i >= 0; i--) {
    int a, b;
    b = 1;
    for (int j = 0; j < i; j++){
      b *= 10;
    }  
    a = N / (10*b);
    f += a;
    N -= a * b;
  }
  
  if (N % f == 0) {
    cout << "Yes" << endl;
  }
  else {
    cout << "No" << endl;
  }
}