Submission

Score: 95

User: samsenpisardmoo69

Problemset: ISBN

Language: cpp

Time: 0.006 second

Submitted On: 2026-10-03 15:30:39

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