Submission

[P-SSSSSSSS]

Score: 0

User: brightokung

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.003 second

Submitted On: 2024-12-09 21:09:57

#include <iostream>
using namespace std;

int main()
{
    char a[17];
    const int x=16;
    int sum=0;
    cin >> a+1;
    a[0]='0';
    for(int i=15;i>=1;i-=2)
    {
        int k=(a[i]-'0')*2;
        sum += (k/10)+(k%10);
        sum += a[i-1]-'0';
    }
    if(10-(sum%10)%10 == a[x]-'0')
        cout << "yes";
    else
        cout << "no";
}