Submission

Score: 100

User: Some1258

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-07-24 09:59:02

#include<bits/stdc++.h>
using namespace std;
int main(){
    int sum=0;
    int num=10;
    for(int i=0;i<9;i++){
        int x;
        cin>> x;
        sum+=x*num;
        num--;
    }
    int ans=11-(sum%11);
    if(ans==11){
        cout<<"0";
        return 0;
    }
    cout<<ans;
}