Submission

Score: 100

User: Neozaawwman1

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-09 14:27:31

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