Submission

Score: 95

User: Trin1506

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-13 16:16:53

#include <bits/stdc++.h>
using namespace std;
int main() {
   int a[9],sum=0;
   for(int i=0;i<9;i++){
    cin >> a[i];
    sum+=a[i]*(10-i);
   }
   cout << (11-(sum%11));
}