using System;

using System.Diagnostics;

using System.Linq;

​

namespace ConsoleApp5

{

    class Program

    {

        static int TOTAL = 5000;

        static void Main(string[] args)

        {

            var dic = Enumerable.Range(0, TOTAL).ToDictionary(c => c, c => c);

            var stopwatch = new Stopwatch();

            var count = 0;

            stopwatch.Start();

            for (var i = 0; i < TOTAL; i++)

            {

                var b = dic[i];

                count++;

            }

​

            stopwatch.Stop();

            Console.Out.WriteLine("To Search in dictionary = " + stopwatch.ElapsedTicks);

            stopwatch.Reset();

            stopwatch.Start();

            for (var i = 0; i < TOTAL; i++)

            {

                try

                {

                    var b = dic[i + TOTAL];

                }

                catch

                {

                    count++;

                }

            }

​

            stopwatch.Stop();

            Console.Out.WriteLine("To fail search with try/catch in dictionary = " + stopwatch.ElapsedTicks);

            stopwatch.Reset();

            stopwatch.Start();

            for (var i = 0; i < TOTAL; i++)

            {

                if (!dic.TryGetValue(i + TOTAL, out int value))

                {

                    count++;

                }

            }

​

            stopwatch.Stop();

            Console.Out.WriteLine("To fail search without try/catch in dictionary = " + stopwatch.ElapsedTicks);

            stopwatch.Reset();

        }

    }

}