Submission

Score: 100

User: UNJE0o

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-11 19:38:13

#include <bits/stdc++.h>
#define en '\n'
using namespace std;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
    
    int sum = 0,n;
    for(int i = 0;i <= 8;i++){
        cin >> n;
        sum += n*(10 - i);
    }
    
    for(int i = 0;i <= 11;i++){
        if((sum+i)%11 == 0){
            cout << i;
            return 0;
        }
    }
}