ASP.NET, поиск работы, вопросы собеседований

...А asmx только в iis

using System;

using System.Diagnostics;

using System.Text;



namespace StringReversal

{

    class Program

    {

        static void Main()

        {

            Console.WriteLine(Reverse1("Hello world!"));

            Console.WriteLine(Reverse2("Hello world!"));

            Console.WriteLine(Reverse3("Hello world!"));



            Debug.Assert(Reverse1("Hello world!") == Reverse2("Hello world!") && 

                Reverse2("Hello world!") == Reverse3("Hello world!"));

        }



        static string Reverse1(string source)

        {

            char[] chars = source.ToCharArray();

            Array.Reverse(chars);



            return new string(chars);

        }



        static string Reverse2(string source)

        {

            StringBuilder builder = new StringBuilder(source);

            for(int i = 0; i < source.Length / 2; ++i)

            {

                char temp = builder[i];

                builder[i] = builder[source.Length - i - 1];

                builder[source.Length - i - 1] = temp;

            } // for



            return builder.ToString();

        }



        static string Reverse3(string source)

        {

            return

                source.Length > 0

                    ? source[source.Length - 1] + Reverse1(source.Substring(0, source.Length - 1))

                    : string.Empty;

        }

    }

}