2. félév 3. hét

namespace ConsoleApp1
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Tarolo[] tarolok = { new Tarolo("Lekvár", 80, Tarolo.Besorolas.KurvaNehez), new Tarolo("Uborka", 40, Tarolo.Besorolas.EbbeMegLehetPakolni), new Tarolo("Kolbász", 150, Tarolo.Besorolas.KurvaNehez) };

            //foreach (Tarolo item in tarolok)
            //{
            //    Console.WriteLine(item.Cimke);
            //}

            //Array.Sort(tarolok);

            //foreach (Tarolo item in tarolok)
            //{
            //    Console.WriteLine(item.Cimke);
            //}

            Lodgings lodgings = new Lodgings(3, 25000, 3, 5, 30000);

            Console.WriteLine(lodgings.Book(3));
            Console.WriteLine(lodgings.IsBooked());
            Console.WriteLine(lodgings.MoveIn(1));
        }
    }
}

----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    internal interface IRealEstate
    {
        int TotalValue();
    }
}

----------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    internal interface IRent
    {
        int GetCost(int months);
        bool IsBooked();
        bool Book(int months);
    }
}


----------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    internal abstract class Flat : IRealEstate
    {
        protected double area;
        protected int roomsCount;
        protected int inhabitantsCount;
        protected int unitPrice;

        double Area { get; set; }
        int RoomsCount { get; set; }
        int InhabitantsCount { get; set; }
        int UnitPrice { get; set; }

        protected Flat(double area, int roomsCount, int inhabitantsCount, int unitPrice)
        {
            this.area = area;
            this.roomsCount = roomsCount;
            this.inhabitantsCount = inhabitantsCount;
            this.unitPrice = unitPrice;
        }

        public abstract bool MoveIn(int newInhabitants);

        public int GetInhabitamtsCount()
        {
            return this.inhabitantsCount;
        }

        public int TotalValue()
        {
            return (int)(this.UnitPrice * this.area);
        }

        public override string ToString()
        {
            return $"{this.roomsCount} {this.inhabitantsCount} {this.area} {this.unitPrice}";
        }
    }
}


----------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    internal class Lodgings : Flat, IRent
    {
        protected int bookedMonths;

        public Lodgings(int bookedMonths, double area, int roomsCount, int inhabitantsCount, int unitPrice) : base(area, roomsCount, inhabitantsCount, unitPrice)
        {
            this.bookedMonths = 0;
            this.inhabitantsCount = 0;
        }

        public bool Book(int months)
        {
            return IsBooked();
        }

        public int GetCost(int months)
        {
            return (TotalValue() / 240) / inhabitantsCount;
        }

        public bool IsBooked()
        {
            if (bookedMonths == 0) return false;

            return true;
        }

        public override bool MoveIn(int newInhabitants)
        {
            if (IsBooked() == true && (inhabitantsCount + newInhabitants) < 9 && ((inhabitantsCount + newInhabitants) / area) > 2)
            {
                inhabitantsCount += newInhabitants;
                return true;
            }

            return false;
        }

        public override string ToString()
        {
            return $"{base.ToString()} + {bookedMonths}";
        }
    }
}