Submission

Score: 95

User: tl.cpp

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2026-08-05 13:14:26

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int sum;

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

    for (int i = 10; i > 1; i--) {
        int x; cin >> x;
        sum += (i * x);
    }
    cout << 11 - (sum % 11);
}