Submission

Score: 95

User: pann

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-05 00:29:28

#include <iostream>
using namespace std;

int main(){
    int sum = 0;
    for (int i = 0; i < 9; i++){
        int n;
        cin >> n;
        sum += (10-i)*n;
    }
    cout << 11-sum%11;
    return 0;
}