Ski Trip

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

namespace DomashnoSkiTrip
{
    class Program
    {
        static void Main(string[] args)
        {
            int daysToStay = int.Parse(Console.ReadLine());
            string roomType = Console.ReadLine().ToLower();
            string feedBack = Console.ReadLine().ToLower();

            double positiveFeedBackPercentageToAdd = 25;
            double negativeFeedBackPercentageDiscount = 10;
            double nightsToPay = daysToStay - 1;
            double discountForNight = 0;

            double onePersonRoomPrice = 18;
            double apartmentPrice = 25.00;
            double presidentApartmentPrice = 35.00;

            double totalCost = 0;

            switch (roomType)
            {
                case "room for one person":
                    {
                        if (feedBack == "positive")
                        {

                            totalCost = nightsToPay * onePersonRoomPrice * (1 + (1.00*positiveFeedBackPercentageToAdd/100));
                            Console.WriteLine($"{totalCost:F2}");
                        }
                        else
                        {
                            totalCost = nightsToPay * onePersonRoomPrice * (1.00 - (1.00 * negativeFeedBackPercentageDiscount / 100));
                            Console.WriteLine($"{totalCost:F2}");
                        }
                    }
                    break;
                case "apartment":
                    {
                        switch (feedBack)
                        {
                            case "positive":
                                if (daysToStay >= 0 && daysToStay < 10)
                                {
                                    discountForNight = 30;
                                    totalCost = (nightsToPay * apartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 + (1.00*positiveFeedBackPercentageToAdd/100));
                                    Console.WriteLine($"{totalCost:F2}");
                                }
                                else if (daysToStay >= 10 && daysToStay <= 15)
                                {
                                    discountForNight = 35;
                                    totalCost = (nightsToPay * apartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 + (1.00 * positiveFeedBackPercentageToAdd / 100));
                                    Console.WriteLine($"{totalCost:F2}");
                                }
                                else if (daysToStay > 15)
                                {
                                    discountForNight = 50;
                                    totalCost = (nightsToPay * apartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 + (1.00 * positiveFeedBackPercentageToAdd / 100));
                                    Console.WriteLine($"{totalCost:F2}");
                                }
                                break;
                            case "negative":
                                if (daysToStay >= 0 && daysToStay < 10)
                                {
                                    discountForNight = 30;
                                    totalCost = (nightsToPay * apartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1-(1.00 * negativeFeedBackPercentageDiscount / 100));
                                    Console.WriteLine($"{totalCost:F2}");
                                }
                                else if (daysToStay >= 10 && daysToStay <= 15)
                                {
                                    discountForNight = 35;
                                    totalCost = (nightsToPay * apartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 - (1.00 * negativeFeedBackPercentageDiscount / 100));
                                    Console.WriteLine($"{totalCost:F2}");
                                }
                                else if (daysToStay > 15)
                                {
                                    discountForNight = 50;
                                    totalCost = (nightsToPay * apartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 - (1.00 * negativeFeedBackPercentageDiscount / 100));
                                    Console.WriteLine($"{totalCost:F2}");
                                }
                                break;
                        }

                    }
                    break;
                case "president apartment":
                    switch (feedBack)
                    {
                        case "positive":
                            if (daysToStay >= 0 && daysToStay < 10)
                            {
                                discountForNight = 10;
                                totalCost = (nightsToPay * presidentApartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 + (1.00 * positiveFeedBackPercentageToAdd / 100));
                                Console.WriteLine($"{totalCost:F2}");
                            }
                            else if (daysToStay >= 10 && daysToStay <= 15)
                            {
                                discountForNight = 15;
                                totalCost = (nightsToPay * presidentApartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 + (1.00 * positiveFeedBackPercentageToAdd / 100));
                                Console.WriteLine($"{totalCost:F2}");
                            }
                            else if (daysToStay > 15)
                            {
                                discountForNight = 20;
                                totalCost = (nightsToPay * presidentApartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 + (1.00 * positiveFeedBackPercentageToAdd / 100));
                                Console.WriteLine($"{totalCost:F2}");
                            }
                            break;
                        case "negative":
                            if (daysToStay >= 0 && daysToStay < 10)
                            {
                                discountForNight = 10;
                                totalCost = (nightsToPay * presidentApartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 - (1.00 * negativeFeedBackPercentageDiscount / 100));
                                Console.WriteLine($"{totalCost:F2}");
                            }
                            else if (daysToStay >= 10 && daysToStay <= 15)
                            {
                                discountForNight = 15;
                                totalCost = (nightsToPay * presidentApartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 - (1.00 * negativeFeedBackPercentageDiscount / 100));
                                Console.WriteLine($"{totalCost:F2}");
                            }
                            else if (daysToStay > 15)
                            {
                                discountForNight = 20;
                                totalCost = (nightsToPay * presidentApartmentPrice * (1.00 - (1.00 * discountForNight / 100))) * (1 - (1.00 * negativeFeedBackPercentageDiscount / 100));
                                Console.WriteLine($"{totalCost:F2}");
                            }
                            break;

                    }
                    break;
            }
        }
    }
}