Submission

Score: 5

User: konthaina_TH

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2025-11-07 08:53:00

#include <bits/stdc++.h>

using namespace std;

int main()
{
    int a[9];
    int total;
    int cnt = 0;
    for (int i=0;i<9;i++) {
        cin >> a[i];
    }
    for (int j=10;j>1;j--) {
        total += (j*a[cnt]);
        cnt++;
    }
    for (int i=0;i<=9;i++) {
        if ((total + i) % 11 == 0) cout << i;
    }
}