Submission

Score: 95

User: erng

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-09 09:21:25

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

int arr[10], t, c=10;

int main()
{
    for (int i=0; i<9; i++)
    {
        cin>>arr[i];
    }
    for (int i=0; i<9; i++)
    {
        t+=arr[i]*c;
        c--;
    }
    for (int i=0; i<=9; i++)
    {
        if ((t+i)%11==0)
        {
            cout<<i;
            break;
        }
    }
}