Submission

Score: 95

User: chillxvtkz

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-11 11:45:31

#include <iostream>
using namespace std;
int main(){
    int n1,n2,n3,n4,n5,n6,n7,n8,n9,s=0;
    cin >> n1 >> n2 >> n3 >> n4 >> n5 >> n6 >> n7 >> n8 >> n9;
    s = n1*10+n2*9+n3*8+n4*7+n5*6+n6*5+n7*4+n8*3+n9*2;
    if(s%11==0){cout << "0";}
    else if(s%11==1){cout << "1";}
    else if(s%11==2){cout << "9";}
    else if(s%11==3){cout << "8";}
    else if(s%11==4){cout << "7";}
    else if(s%11==5){cout << "6";}
    else if(s%11==6){cout << "5";}
    else if(s%11==7){cout << "4";}
    else if(s%11==8){cout << "3";}
    else if(s%11==9){cout << "2";}
    else if(s%11==10){cout << "1";}
}