Submission

Score: 100

User: Zailagend1

Problemset: ตรวจบัตรเครดิต

Language: cpp

Time: 0.002 second

Submitted On: 2026-06-27 13:24:45

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<int> vc;
typedef vector<ll> vll;
typedef vector<vi> vvi;
typedef vector<vc> vvc;
typedef vector<vll> vvll;
typedef vector<pii> vpii;
typedef vector<string> vs;
typedef unordered_map<int, int> umii;
typedef unordered_map<string, int> umsi;
typedef unordered_map<char, int> umci;
typedef unordered_map<ll, ll> umll;
typedef unordered_set<int> usi;

#define pb push_back
#define mp make_pair
#define F first
#define S second
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define sz(v) (int)(v).size()
#define il(n) int i = 0; i < (n); i++
#define jl(n) int j = 0; j < (n); j++
#define kl(n) int k = 0; k < (n); k++

const int MOD = 1e9 + 7;
const int INF = 1e9;
const ll LINF = 1e18;

template<typename T> void _dbg(T t) { cerr << t; }
template<typename T, typename... Args> void _dbg(T t, Args... args) { cerr << t << ", "; _dbg(args...); }
#ifdef LOCAL
#define debug(...) do { cerr << "[" << #__VA_ARGS__ << "] = ["; _dbg(__VA_ARGS__); cerr << "]" << endl; } while(0)
#else
#define debug(...)
#endif

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    string a;
    vi result;
    cin >> a;
    for(int i = 14;i>=0;i--){
      int d = (a[i] - '0');
      if(((i + 1) % 2 == 1) && ((d*2) >=  10)){
        int b = d*2;
        result.push_back(1);
        result.push_back(b%10);
      }else{
        result.push_back(((i+1)%2 == 0)?d:2*d);
      }
    }
    if(((10 - ((accumulate(result.begin(),result.end(),0)) % 10)) % 10) == (a[15]-'0')){
      cout << "yes";
    }else{
      cout << "no";
    }
    return 0;
}