Submission

Score: 100

User: Poon

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-06 18:05:47

#include <iostream>
using namespace std;

int main() 
{
  int x[9];
  for(int k=0;k<9;k++)
  {
    cin>>x[k];
  }
  int sum=0;
  for(int k=0;k<9;k++)
  {
    sum+=(10-k)*x[k];
  }
  cout<<(11000-sum)%11;
}