using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        User user = new User("Jonh doe", "12/10/1932", "jonh@gmail.com", "123123fds");

        Console.WriteLine("Cadastro de Usuários:");

        Console.WriteLine("Quantidade de Cadastros");

        string inputCountUser = Console.ReadLine();

        int countUser = int.Parse(inputCountUser);

        Console.WriteLine("Nome:");

        string nameOfUser = Console.ReadLine().Trim();

        Console.WriteLine("Data de nascimento:");

        string dayOfBirthDayOfUser = Console.ReadLine().Trim();

        Console.WriteLine("Email:");

        string emailOfUser = Console.ReadLine().Trim();

        Console.WriteLine("Senha:");

        string passwordOfUser = Console.ReadLine().Trim();

        List<User> users = new List<User>(countUser);

​

        if (!emailOfUser.Contains("@mastercoin.com.br") & passwordOfUser.Length >= 8)

        {

            for (int i = 0; i < countUser; i++)

            {

                if (users[i].Email != emailOfUser)

                {

                    users.Add(new User(nameOfUser, dayOfBirthDayOfUser, emailOfUser, passwordOfUser));

                }

                else

                {

                    Console.WriteLine("Email existente!");

​

                }

            }

        }

        else 

        {

            Console.WriteLine("Erro ao cadastrar o usuário");

        }

    }

}

​

public class User

{

    private string name;

    private string dayOfBirthday;

    private string email;

    private string password;

    public string Name

    {

        get {return name;}

        set {name = value;}

    }

    public string DayOfBirthday

    {

        get {return dayOfBirthday;}

        set {dayOfBirthday = value;}

    }

    public string Email

    {

        get {return email;}

        set {email = value;}

    }

    public string Password

    {

        get {return password;}

        set {password = value;}

    }

    public User(string name, string dayOfBirthday, string email, string password) 

    {

        this.name = name;

        this.dayOfBirthday = dayOfBirthday;

        this.email = email;

        this.password = password;

    }

    public string ToString() 

    {

        return "Name: " + name + ", dayOfBirthday: " + dayOfBirthday;

    }

}