using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        Program p = new Program();

        string test = "hola";

        string test1 = "hola";

        string test2 = "hola";

        Console.WriteLine("Usando Array");

        Console.WriteLine(p.StrAllEqualsWithArray("hola", test, test1, test2));

        Console.WriteLine(p.StrAllEqualsWithArray("hola", test, test1, test2, "hola"));

        Console.WriteLine(p.StrAllEqualsWithArray("hola", test, test1, test2, "hola", "aloha"));

        Console.WriteLine(p.StrAllEqualsWithArray("hola", "hola", "aloha", "hola", "aloha"));

        Console.WriteLine(p.StrAllEqualsWithArray("hola", "hola", "hola", "hola", "hola"));

        Console.WriteLine(p.StrAllEqualsWithArray("hola", "hola", "hola", "hola", "hola", test, test1, test2));

        Console.WriteLine("Usando Linq");

        Console.WriteLine(p.StrAllEqualsWithLinq("hola", test, test1, test2));

        Console.WriteLine(p.StrAllEqualsWithLinq("hola", test, test1, test2, "hola"));

        Console.WriteLine(p.StrAllEqualsWithLinq("hola", test, test1, test2, "hola", "aloha"));

        Console.WriteLine(p.StrAllEqualsWithLinq("hola", "hola", "aloha", "hola", "aloha"));

        Console.WriteLine(p.StrAllEqualsWithLinq("hola", "hola", "hola", "hola", "hola"));

        Console.WriteLine(p.StrAllEqualsWithLinq("hola", "hola", "hola", "hola", "hola", test, test1, test2));

    }

    public bool StrAllEqualsWithArray(string key, params string[] values)

    {

        bool flag = true;

        for (int i = 0; i < values.Length; i++)

        {

            if (values[i] != key) 

            {

                flag = false;

                break;

            }

        }

        return flag;

        /*

        // todo esto lo puede implificar a:

        for (int i = 0; i < values.Length; i++)

            if (values[i] != key) return false;     

        return true;

        */

    }

    public bool StrAllEqualsWithLinq(string key, params string[] values)

    {

        return values.All(val => val == key);

    }

}