using System;

public class Program

{

    public static string CurrentApplicationVersion = "1.0.9";

​

    public static void Main()

    {

        RunTest("1.0.3");

        RunTest("1.0.8");

        RunTest("1.0.9");

        RunTest("1.1.1");

    }

    public static void RunTest(string version)

    {

        var cmp = IsVersionGreaterThanCurrent("1.1.1");

        string str = version + " > " + CurrentApplicationVersion + " ? " + (cmp ? "yes": "no");

​

        Console.WriteLine(str);

    }

    public static bool IsVersionGreaterThanCurrent(string remoteVersionNumber)

    {

        if (string.IsNullOrEmpty(remoteVersionNumber)) return false;

​

        try

        {

            var thisVersionArray = GetVersionArray(CurrentApplicationVersion);

            var otherVersionArray = GetVersionArray(remoteVersionNumber);

​

            for (var i = 0; i < otherVersionArray.Length; i++)

            {

                var thisVersionValue = (i < thisVersionArray.Length)

                    ? thisVersionArray[i]

                    : 0;

​

                if (otherVersionArray[i] > thisVersionValue) return true;

            }

​

            return false;

        }

        catch

        {

            return false;

        }

    }

    public static int[] GetVersionArray(string versionString)

    {

        if (string.IsNullOrEmpty(versionString)) return null;

​

        var splits = versionString.Split('.');

        var array = new int[splits.Length];

        for (var i = 0; i < splits.Length; i++)

        {

            array[i] = int.Parse(splits[i]);

        }

​

        return array;

    }

​

}