using System;

public class Program

{

    static int CountPositives(int[] IntArray)

    {

        int count = 0;

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

        {

            if(IntArray[i] > 0)

            {

                count++;

            }

        }

        return count;

    }

    static int[] ExtractPositives(int[] Array)

    {

        int[] NewArray = new int[CountPositives(Array)];

        int j = 0;

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

        {

            if(Array[i] > 0)

            {

                NewArray[j] = Array[i];

                j++;

            }

        }

        return NewArray;

    }

    static void DisplayArray(int[] IntArray)

    {

        Console.WriteLine("Display the array: ");

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

        {

            Console.Write("Arr[{0}] = {1}", i, IntArray[i]);

        }

    }

    static void RandomArrayData(int[] IntArray)

    {

        Console.WriteLine("Generating random array  data: ");

        Random random = new Random();

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

        {

            IntArray[i] = random.Next(-1000, 1000);

        }

    }

    public static void Main()

    {

        int[] A = new int[20];

        RandomArrayData(A);

        DisplayArray(A);

        Console.WriteLine();

        int[] B = ExtractPositives(A);

        DisplayArray(B);

    }

}