Submission

Score: 0

User: ThreeDee

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-24 20:51:44

#include <bits/stdc++.h>

using namespace std;

int main(){
    int sum;
    sum=0;
    string a;
    cin>>a;
    for(int i=0; i<15; i++){
        if(i%2==0){
            if(a[i]-48<5){
                sum+=2*(a[i]-48);
            }
            else{
                sum+=1+2*(a[i]-53);
            }
        }
        else{
            sum+=a[i]-48;
        }
    }
    if(10-sum%10==a[15]-48){
        cout<<"yes";
    }
    else{
        cout<<"no";
    }
    return 0;
}