using System;

using System.Collections.Generic;

//Reverse the content of an array of integers. The initial array can be hard-coded. After the array is reversed, print it.                  

public class Program

{

    public static void Main()

    {

        int[] x = {1, 2, 3, 4};

        int size = x.Length;

        int[] result = Reverse(x);

        for(int i=0; i<size; i++) {

           System.Console.Write(result[i].ToString()+" ");

        }

    }

    private static int[] Reverse(int[] input) {

        List<int> result = new List<int>();

        int size = input.Length;

        for (int i=size-1; i>=0; i--){

            result.Add(input[i]);

        }

        return result.ToArray();

    }

}

​