Submission

Score: 100

User: Nuttykub

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-01 17:28:22

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    string s;
    cin >> s;
    vector<int> vec;
    for (int i = 0;i < s.length()-1;i++){
        vec.push_back(s[i]-'0');
    }
    for (int i = 0;i < vec.size();i+=2){
        vec[i]*=2;
    }
    string ans = "";
    for (int i = 0;i < vec.size();i++){
        ans+=to_string(vec[i]);
    }
    int total = 0;
    for (int i = 0;i < ans.length();i++){
        total+=ans[i]-'0';
    }
    if ((10-(total%10))%10 == s[s.length()-1]-'0') cout <<"yes";
    else cout <<"no";
}