Submission

Score: 100

User: Sense.exe

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 21:23:01

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

int main() {
    vector<int> v;
    int temp;
    for(int i=0; i<9; i++) {
        cin >> temp;
        v.push_back(temp);
    }
    //sum of 1-9
    int sum=0;
    for(int i=10; i>=2; i--) {
        sum+=i*v[(v.size()+1)-i];
    }
    //find n10
    int i=0;
    while((sum+i)%11!=0) {
        i++;
    }
    cout << i;
}