MatchTickets

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

namespace MatchTickets
{
    class MatchTickets
    {
        static void Main(string[] args)
        {
            //            •   На първия ред е бюджетът – реално число в интервала[1 000.00... 1 000 000.00]
            //•   На втория ред е категорията – „VIP” или „Normal”
            //•   На третия ред е броят на хората в групата – цяло число в интервала[1... 200]

            double budget = double.Parse(Console.ReadLine());
            string ticketType = Console.ReadLine().ToLower();
            int countOfPeopleInAGroup = int.Parse(Console.ReadLine());

            double ticketPrice = ticketType == "vip" ?
                                        499.99 : 249.99;

            double percentOfBudgetForTransport = 0.0;
            if (countOfPeopleInAGroup >= 1 &&
                countOfPeopleInAGroup <= 4)
            {
                //75%
                percentOfBudgetForTransport = 0.75;
            }
            else if (countOfPeopleInAGroup >= 5 &&
                     countOfPeopleInAGroup <= 9)
            {
                //60%;
                percentOfBudgetForTransport = 0.60;
            }
            else if (countOfPeopleInAGroup >= 10 &&
                     countOfPeopleInAGroup <= 24)
            {
                //50%
                percentOfBudgetForTransport = 0.50;
            }
            else if (countOfPeopleInAGroup >= 25 &&
                     countOfPeopleInAGroup <= 49)
            {
                //40%
                percentOfBudgetForTransport = 0.40;
            }
            else if (countOfPeopleInAGroup >= 50)
            {
                //25%
                percentOfBudgetForTransport = 0.25;
            }

            double moneyLeftAfterTransport = budget - (budget * percentOfBudgetForTransport);

            double moneyNeededForAllOfTheTickets = ticketPrice * countOfPeopleInAGroup;

            if (moneyLeftAfterTransport >= moneyNeededForAllOfTheTickets)
            {
                Console.WriteLine($"Yes! You have {(moneyLeftAfterTransport - moneyNeededForAllOfTheTickets):f2} leva left.");
            }
            else
            {
                Console.WriteLine($"Not enough money! You need {(moneyNeededForAllOfTheTickets - moneyLeftAfterTransport):f2} leva.");
            }
        }
    }
}