بررسی فرمت تاریخ

فرمت (yyyy/mm/dd) است و ماه و روز هم کنترل می شود.

#include <iostream>
using namespace std ;

int main() {
    string date ;
    cout << "Enter date (yyyy/mm/dd) : " ;
    cin >> date ;

    string y = date.substr(0,4);
    string m = date.substr(5,2);
    string d = date.substr(8,4);

    int year = stoi(y);
    int month = stoi(m);
    int day = stoi(d);

    bool flag ;
    if (y.length() == 4  &&  m.length() == 2  &&  d.length() == 2) {
        flag = true ;
    }
    if (flag  &&  0 < month <= 6  &&  0 < day <= 31 ) {
        cout << "True" << endl;
    } else if (flag  &&  6 < month <= 12  &&  0 < day <= 30) {
        cout << "True" << endl;
    } else {
        cout << "False" << endl;
    }
    return 0;
}

from datetime import datetime

date = input()
try:
    datetime.strptime(date, "%Y/%m/%d")
    print(True)
except ValueError:
    print(False)