تحديات برمجيةالتحدي الخامس - حل التمرين الثالث بلغة C#

using System;

class Program
{
    static void Main(string[] args)
    {
        int n;

        do
        {
            Console.Write("Enter an odd number as the number of lines: ");
            n = int.Parse(Console.ReadLine());
        }
        while (n <= 0 || n % 2 == 0);

        for (int i = 1; i <= n; i++)
        {
            if (i <= n / 2)
            {
                for (int k = 1; k <= n / 2; k++)
                {
                    Console.Write(" ");
                }

                Console.Write("*");

                for (int j = 1; j <= n / 2 - 1; j++)
                {
                    if (i == 1 || i == n / 2 + 1)
                    {
                        Console.Write("*");
                    }
                    else
                    {
                        Console.Write(" ");
                    }
                }

                Console.Write("*");
            }
            else if (i == n / 2 + 1)
            {
                for (int j = 1; j <= n; j++)
                {
                    Console.Write("*");
                }
            }
            else
            {
                Console.Write("*");

                for (int j = 1; j <= n / 2 - 1; j++)
                {
                    if (i == n)
                    {
                        Console.Write("*");
                    }
                    else
                    {
                        Console.Write(" ");
                    }
                }

                Console.Write("*");
            }
            Console.WriteLine();
        }

        Console.ReadKey();
    }
}

Enter an odd number as the number of lines: 9
    *****
    *   *
    *   *
    *   *
*********
*   *
*   *
*   *
*****