Submission

Score: 100

User: Gundhon

Problemset: บาร์โค้ด

Language: cpp

Time: 0.003 second

Submitted On: 2026-10-07 15:55:37

#include <iostream>

using namespace std;

int main(){
    string x;
    cin >> x;
   
    if(x.length() != 13){
        return 0;
    }
    int y = x.length();
    int sum1 = 0, sum2 = 0; //sum1 = odd sum2 = even

    for(int i = y-1; i >= 0; i--){
        if (i % 2 != 0){
            sum2 += x[i] - '0';
        }
        else if(i % 2 == 0 && i <= 10){
            sum1 += x[i] - '0';
        }
    }

    int z = (sum2*3 + sum1) + x[12] - '0';

    if(z%10 == 0) cout << "YES";
    else cout << "NO";
    
  


    return 0;
}