CountWorkingDays

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;

namespace P01CountWorkingDays
{
    class Program
    {
        private static string input1;
        private static string input2;
        private static string format;
        private static DateTime startDate;
        private static DateTime endDate;
        private static DateTime[] holidays = new DateTime[]
            {
                new DateTime(1, 12, 24), // godina, mesec, den
                new DateTime(1, 12, 25),
                new DateTime(1, 12, 26),
                new DateTime(1, 01, 01),
                new DateTime(1, 03, 03),
                new DateTime(1, 05, 01),
                new DateTime(1, 05, 06),
                new DateTime(1, 05, 24),
                new DateTime(1, 09, 06),
                new DateTime(1, 09, 22),
                new DateTime(1, 11, 01),
            };

        static void Main(string[] args)
        {
            input1 = Console.ReadLine().Trim();
            input2 = Console.ReadLine().Trim();
            format = "dd-MM-yyyy";

            startDate = DateTime.ParseExact(input1, format, CultureInfo.InvariantCulture);
            endDate = DateTime.ParseExact(input2, format, CultureInfo.InvariantCulture);
            //RunWithErrors();

            int workindDays = 0;

            for (DateTime day = startDate; day <= endDate; day = day.AddDays(1))
            {
                DayOfWeek dayOfWeek = day.DayOfWeek;
                DateTime tempDate = new DateTime(1, day.Month, day.Day);
                if (!holidays.Contains(tempDate) && !dayOfWeek.Equals(DayOfWeek.Sunday) && !dayOfWeek.Equals(DayOfWeek.Saturday))
                {
                    workindDays += 1;
                }
            }
            Console.WriteLine(workindDays);

            //main ends here
        }
    }
}