Submission

Score: 100

User: MrPian

Problemset: ISBN

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-04 01:58:02

#include<iostream>
#include<cmath>
using namespace std;
int main(){
    int isbn[9]={};
    int sum=0,itr=0;
    for(int i=0;i<9;i++){
        cin >> isbn[i];
        sum += isbn[i]*(10-i); 
    }
    while(true){
        if((sum+itr)%11==0) break;
        itr++;
    }
    cout << itr;
    
return 0;
}