Submission

Score: 100

User: zenta4u

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-29 11:18:04

// Online C++ compiler to run C++ program online
#include <iostream>
#include <string>
using namespace std;
int main() {
    string x;
	int num[16],sum=0;
    cin>>x;
    for(int i=0;i<16;i++){
    	num[i]=x[i]-48;

	}
	for(int i=0;i<16;i++){
		if(i%2==0){
			num[i]=num[i]*2;
		}
	}
	for(int i=0;i<15;i++){
	
	    if(num[i]>=10){
    		sum=sum+(1+(num[i]%10));
		}else{
			sum=sum+num[i];
		}
	}
	if((10-(sum%10))%10==x[15]-48){
		cout<<"yes";
	}
	else{
		cout<<"no";
	}
}