Submission

Score: 100

User: letdown

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-09 15:30:36

#include <iostream>

using namespace std;
int main() {
    int s=0;
    for (int i = 10; i >= 2; i--) {
        int n;
        cin >> n;
        s+= i*n;
    }
    for (int ans = 0; ans <= 11; ans++) {
        if ((ans + s) % 11 == 0) {
            cout << ans;
            return 0;
        }
    }
}