Submission

Score: 100

User: Nitro_Legacy

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-29 12:59:25

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

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