Submission

Score: 100

User: Pera

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2025-05-18 18:03:30

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    int sum = 0;

    for (int i = 10; i > 1; i--) {
        int n;
        cin >> n;
        sum += n * i;
    }

    int ans = 11 - (sum % 11) == 11 ? 0 : 11 - (sum % 11);
    cout << ans << '\n';

}