Submission

Score: 100

User: boommmmm

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-15 13:55:46

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

int main()
{
	int n,sum=0;
	vector<int> ans(9);
	int j=10;
	for(int i=0;i<9;i++){
		cin >> ans[i];
		sum+=ans[i]*j;
		j--;
	}
	int x=(11-(sum%11))%11;
	cout << x;
	return 0;
}