Submission

Status:

PPPPPPPPPPPPPPPPPPPP

Subtask/Task Score:

100/100

Score: 100

User: nicekrittaphat

Problemset: ISBN

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-13 16:24:43

#include<iostream>
using namespace std;

int main(){
    int a[9];
    int sum=0;

    for(int i=0;i<9;i++){
        cin>>a[i];
    }

    for(int i=10;i>=2;i--){
        sum += (a[10-i]*i);
    }

    if(sum%11==0){
        cout<<0;
    }
    else{
        cout<<11-sum%11;
    }

}