Submission

Score: 95

User: mocngaijakraila

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2026-02-28 15:54:44

#include<bits/stdc++.h>
using namespace std;
int arr[10], s = 0;

int main() {
    for(int i = 1; i <= 9; i++) {
        cin >> arr[i];
        s += arr[i] * (10 - i + 1);
    }
    cout << 11 - s % 11;
    
    return 0;
}