Submission

Score: 100

User: ThreeDee

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-24 21:15:11

#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 if(10-sum%10==10 && a[15]-48==0){ cout<<"yes"; }
    else{ cout<<"no"; }
    return 0;
}