using System;

public class Program

{

    public static void Main()

    {

        comparador<string> c  = Menor;

        comparador isPlural = Plural;

        Console.WriteLine(Teste(2,isPlural));   

    }   

    public delegate bool comparador<T>(T a ,T b ) where T : IComparable<T>;

    public delegate bool comparador(int a);

​

    public static bool Maior<T>  ( T a, T b ) where T : IComparable<T>

    {

        return a.CompareTo(b) > 0 ;

    }

    public static bool Igual<T>  ( T a, T b ) where T : IComparable<T>

    {

        return a.CompareTo(b) == 0 ;

    }

    public static bool Menor<T>  ( T a, T b ) where T : IComparable<T>

    {

        return a.CompareTo(b) < 0 ;

    }

    public static bool Plural<T>(T a)

    {

        dynamic d = a;

        return Math.Abs(d) > 1;

    }

    public static string Teste<T>(T n1, T n2, comparador<T> c ) where T : IComparable<T>{

        return c(n1, n2) ? "ok" : "não ok";

    }

    public static string Teste(int n1, comparador c )

    {

        return c(n1) ? "ok" : "não ok";

    }

​

}

​

​

​