using System;

using System.Collections.Generic;

using System.Linq;

public class Habitacion

{

    public int RoomId { get; set; }

    public string RoomNumber { get; set; }

    public string Type { get; set; }

    public int Capacity { get; set; }

    public bool IsTaken { get; set; } = false;

}           

​

public class Program

{

    static string Sencilla { get; } = nameof(Sencilla);

    static string Doble { get; } = nameof(Doble);

     static string Familiar { get; } = nameof(Familiar);

    public static void Main()

    {

        var cantidad = 100;

        List<Habitacion> seed = new List<Habitacion>();

​

        Random random = new Random();

​

        List<string> tiposDeHabitacion = new List<string> { Sencilla, Doble, Familiar };

​

        HashSet<string> habitacionesGeneradas = new HashSet<string>();

​

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

        {

            string numeroHabitacion;

            do

            {

                numeroHabitacion = "H" + random.Next(100, 1000).ToString();

            } while (habitacionesGeneradas.Contains(numeroHabitacion));

​

            habitacionesGeneradas.Add(numeroHabitacion);

​

            string tipoHabitacion = tiposDeHabitacion[random.Next(tiposDeHabitacion.Count)];

            int capacidad = (tipoHabitacion == Sencilla) ? 1 : (tipoHabitacion == Doble) ? 2 : 4;

​

            seed.Add(new Habitacion

            {

                RoomNumber = numeroHabitacion,

                Type = tipoHabitacion,

                Capacity = capacidad,

                IsTaken = (DateTime.Now.Ticks %2 == 0)

            });

        }

        foreach( var room in seed)

        {

            //Console.WriteLine( $"Number : { room.RoomNumber} | Type : {room.Type} | Capacity : {room.Capacity} | IsTaken : {room.IsTaken}" );

        }

        var grouped = seed.GroupBy( x => x.Type).Select( x =>  new { Type = x.Key, TotalFree = x.Count( x => !x.IsTaken )});

        foreach( var room in grouped)

        {

            Console.WriteLine( $"Type : { room.Type} | Free : {room.TotalFree}" );

        }

        var familar = grouped.First(x => x.Type == "Familiar");

        Console.WriteLine(familar.TotalFree);

    }

}