Submission

Score: 95

User: SushiCodelnw

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-26 15:09:30

#include <iostream>
using namespace std;

int main() {
    int n[9], sum = 0;
    for (int i = 0; i < 9; i++) cin >> n[i];
    for (int i = 0; i < 9; i++) sum += n[i] * (10 - i);
    int num = 11 - (sum % 11);
    // int num = (sum != 0) ? 11 - (sum % 11) : 0;
    cout << num;
    return 0;
}