Submission

Score: 95

User: Tjeez

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-09 19:08:19

#include <bits/stdc++.h>
using namespace std;
int main(){
	int arr[9];
	for (int i=0 ; i<9 ; i++){
		cin>>arr[i];
	}
	int sm=0;
	for (int i=0 ; i<9 ; i++){
		sm+=arr[i]*(10-i);
	}
	cout<<11-sm%11;
}