Submission

Score: 100

User: Chayatoeyy

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-06 14:49:54

#include<bits/stdc++.h>
using namespace std;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int sum=0,n=9;
    for(int i=10;i>1;i--){
        int x;
        cin>>x;
        sum+=i*x;
    }
    for(int i=0;i<12;i++){
        if((sum+i)%11==0){
            cout << i;
            break;
        }
    }
}