using System;
using System.Text;
using Sitecore.Diagnostics;

namespace ConsoleApplication5
{
    public delegate void Method(params string[] input);
    public class Program
    {
        private const int cycles = 10000000;
        static void Main()
        {
            string input1 = "aaa";
            
            Tel(Concat1, input1, input1);
            Tel(Concat2, input1, input1);
            Tel(Concat3, input1, input1);
            Console.WriteLine();

            string input2 = "aaaa";

            Tel(Concat1, input1, input2);
            Tel(Concat2, input1, input2);
            Tel(Concat3, input1, input2);
            Console.WriteLine();

            Tel(Concat1, input2, input2);
            Tel(Concat2, input2, input2);
            Tel(Concat3, input2, input2);
            Console.WriteLine();

            string input3 = "aaaaa";

            Tel(Concat1, input1, input3);
            Tel(Concat2, input1, input3);
            Tel(Concat3, input1, input3);
            Console.WriteLine();

            Tel(Concat1, input2, input3);
            Tel(Concat2, input2, input3);
            Tel(Concat3, input2, input3);
            Console.WriteLine();

            Tel(Concat1, input1, input2, input3);
            Tel(Concat2, input1, input2, input3);
            Tel(Concat3, input1, input2, input3);
            Console.WriteLine();

            Tel(Concat1, input1, input2, input3, input1, input2, input3);
            Tel(Concat2, input1, input2, input3, input1, input2, input3);
            Tel(Concat3, input1, input2, input3, input1, input2, input3);
            Console.WriteLine();
        }

        
        static void Tel(Method m, params string[] input)
        {
            using (new Timer())
            {
                m.Invoke(input);
            }
        }
        static void Concat1(params string[] input)
        {
            var arr = new string[cycles];
            for(int i = 0; i < cycles; i++)
            {
                arr[i] = string.Concat(input);
            }
        }
        static void Concat2(params string[] input)
        {
            var arr = new string[cycles];
            for (int i = 0; i < cycles; i++)
            {
                var sb = new StringBuilder();
                foreach (string s in input)
                {
                    sb.Append(s);
                }
                arr[i] = sb.ToString();
            }
        }
        static void Concat3(params string[] input)
        {
            var arr = new string[cycles];
            for (int i = 0; i < cycles; i++)
            {
                string e = string.Empty;
                foreach (string s in input)
                {
                    e += s;
                }
                arr[i] = e;
            }
        }
    }
    public class Timer : IDisposable
    {
        private static readonly HighResTimer hrt;
        static Timer()
        {
            hrt = new HighResTimer(false);
        }
        public Timer()
        {
            hrt.Start();
        }

        public void Dispose()
        {
            Console.WriteLine(hrt.GetElapsed());
        }
    }
}