DateTime

using System;
//Write a method that calculates the number of workdays between today and given date, passed as parameter.
class Program
{
    static void Main()
    {
        Console.WriteLine("Enter end date :");
        DateTime end = DateTime.Parse(Console.ReadLine());
        DateTime now = DateTime.Today;

        DateTime[] holidays =
        {
            new DateTime(2000, 1, 1),
            new DateTime(2000, 3, 3),
            new DateTime(2000, 5, 1),
            new DateTime(2000, 5, 2),
            new DateTime(2000, 5, 6),
            new DateTime(2000, 5, 24),
            new DateTime(2000, 9, 22),
            new DateTime(2000, 12, 24),
            new DateTime(2000, 12, 25),
            new DateTime(2000, 12, 26),
            new DateTime(2000, 12, 31),
        };

        int workDays = 0;
        for (DateTime i = now; DateTime.Compare(i, end) == -1; i = i.AddDays(1))
        {
            if (i.DayOfWeek != DayOfWeek.Sunday && i.DayOfWeek != DayOfWeek.Saturday)
            {
                if (!IsHoliday(i, holidays))
                {
                    workDays++;
                }
            }
        }
        Console.WriteLine("Work days:");
        Console.WriteLine(workDays);
    }

    private static bool IsHoliday(DateTime i, DateTime[] holidays)
    {
        foreach (DateTime item in holidays)
        {
            if (i.Day == item.Day && i.Month == item.Month)
            {
                return true;
            }
        }
        return false;
    }


}