Submission

Score: 100

User: SayRo

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 09:51:44

#include<bits/stdc++.h>
using namespace std;

int main(){
    cin.tie(nullptr)->sync_with_stdio(0);
    int sum=0;
    for(int i=0;i<9;i++){
        int x;
        cin>>x;
        sum+=(10-i)*x;
    }
    if(sum%11==0) cout<<0;
    else cout<<11-sum%11;
}