Your class should have a constructor that initializes the three data members.

Your class should have a constructor that initializes the three data members.

Constructor is the code that runs when you create that instance.

What about the other two variables? Are you just telling me to skip it? I think it's a question, so I'm focusing on it and answering.

Maybe you're asking me to make a Constructor that receives three parameters.

#include <iostream>
#include <ctime>
#include <string>
using namespace std;

class user{
    private:
        int id;
        time_t create_date;
        string userID;
        string password;
        string email;
    public:
        user(string userID, string password, string email){
            this -> userID = userID;
            this -> password = password;
            this -> email = email;

            Assign using this -> id; // auto increment function.
            This -> create_date; // Get the current date and assign it.
        }

        void print(){
        }
};

int main()
{
}

For the other two member variables, you can have the computer automatically turn off, or you can just assign nothing.

I think you can think of it as an option.

Slightly literal: There must be a constructor that initializes the three data members (variables).

Translation: The constructor must have code to initialize three data member variables.