Submission

Score: 100

User: PROb221

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-10 08:34:52

//c1_su66_isbn
#include <iostream>
using namespace std;
int main()
{
    int i,input,sum=0;
    for(i=10;i>=2;i--) {
      cin >> input;
      sum=sum+input*i;
    }
    sum = 11-(sum%11);
    sum = sum%11;
    cout << sum;
    return 0;
}