Task 24

using System;
using System.Threading;

namespace HomeWorks
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] array = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            WriteArray(array);
            Shuffle(array);
            WriteArray(array);

            Console.ReadKey();
        }

        static void Shuffle(int[] array)
        {
            Random random = new Random();
            int tempValueIndex;
            int tempIndex;

            for(int i = 0; i < array.Length; i++)
            {
                tempValueIndex = array[i];
                tempIndex = random.Next(i, array.Length);
                array[i] = array[tempIndex];
                array[tempIndex] = tempValueIndex;
            }
        }

        static void WriteArray(int[] array)
        {
            for (int i = 0; i < array.Length; i++)
            {
                Console.Write(array[i] + " ");
            }
            Console.WriteLine();
        }
    }
}