Submission

Score: 100

User: samsenpisardmoo26

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 14:15:46

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int arr[9];
    for(int i=0; i<9; i++) cin >> arr[i];
    
    int sum=0;
    
    for(int i=0; i<9; i++)
    {
        sum+=(10-i)*arr[i];
    }
    
    if(sum%11!=0) cout << 11 - sum%11;
    else cout << "0";
}