TsvetelinaPasheva/ConditionalStatementsAdvancedLab/13.SkiTrip

using System;

namespace ConsoleApp17
{
    class Program
    {
        static void Main(string[] args)
        {
            int day = int.Parse(Console.ReadLine());
            string room = Console.ReadLine();
            string grade = Console.ReadLine();

            double price = 0;
            double finalprice = 0;
            double discount = 0;
            double overnight = day - 1;
            double roomForOnePerson = 18;
            double apartment = 25;
            double presidentApartment = 35;

            if (room == "room for one person")
            {
                price = overnight * roomForOnePerson;
            }
            if (room == "apartment")
            {
                if (day < 10)
                {
                    price = overnight * apartment;
                    discount = price * 0.30;
                    finalprice = price - discount;
                }
                else if (day > 10 && day < 15)
                {
                    price = overnight * apartment;
                    discount = price * 0.35;
                    finalprice = price - discount;
                }
                else if (day > 15)
                {
                    price = overnight * apartment;
                    discount = price * 0.50;
                    finalprice = price - discount;
                }
            }

            if (room == "president apartment")
            {
                if (day < 10)
                {
                    price = overnight * presidentApartment;
                    discount = price * 0.10;
                    finalprice = price - discount;
                }
                else if (day > 10 && day < 15)
                {
                    price = overnight * presidentApartment;
                    discount = price * 0.15;
                    finalprice = price - discount;
                }
                else if (day > 15)
                {
                    price = overnight * presidentApartment;
                    discount = price * 0.20;
                    finalprice = price - discount;
                }
            }
            if (grade == "positive")
            {
                if (room == "room for one person")
                {
                    price = price + (price * 0.25);
                    Console.WriteLine($"{price:f2}");
                }
                else if (room == "apartment" || room == "president apartment")
                {
                    finalprice = finalprice + (finalprice * 0.25);
                    Console.WriteLine($"{finalprice:f2}");
                }
            }
            else if (grade == "negative")
            {
                if (room == "room for one person")
                {
                    price = price - (price * 0.10);
                    Console.WriteLine($"{price:f2}");
                }
                else if (room == "apartment" || room == "president apartment")
                {
                    finalprice = finalprice - (finalprice * 0.10);
                    Console.WriteLine($"{finalprice:f2}");
                }
            }
        }
    }
}