Problem:
Score : 200 points

Problem Statement

Let S(n) denote the sum of the digits in the decimal notation of n.
For example, S(101) = 1 + 0 + 1 = 2.

Given an integer N, determine if S(N) divides N.

Constraints

1 \leq N \leq 10^9

Input

Input is given from Standard Input in the following format:

N

Output

If S(N) divides N, print Yes; if it does not, print No.

Sample Input 1

12

Sample Output 1

Yes

In this input, N=12.
As S(12) = 1 + 2 = 3, S(N) divides N.

Sample Input 2

101

Sample Output 2

No

As S(101) = 1 + 0 + 1 = 2, S(N) does not divide N.

Sample Input 3

999999999

Sample Output 3

Yes

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
#include<string.h>
int main()
{
	char a[15];
	gets(a);

	int n=strlen(a);
	int i,sum=0;
	for(i=0;i<n;i++)
	{
		sum += a[i]-'0';
	}
	
	int num=0;
	
	int t=1;
	for(i=0;i<n;i++)
	{
		num+=a[i]*t;
		t=t*10;
	}
	if(num%sum==0) printf("Yes");
	else printf("NO");
}