تحديات برمجيةالتحدي الثاني - حل التمرين الثالث بلغة C#

using System;

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

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

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

            Console.Write("*");

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

            Console.WriteLine();
        }

        Console.ReadKey();
    }
}

using System;

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

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

        for (int i = n; i >= 1; i--)
        {
            for (int k = 1; k <= n - i; k++)
            {
                Console.Write(" ");
            }

            Console.Write("*");

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

            Console.WriteLine();
        }

        Console.ReadKey();
    }
}

Enter the number of lines: 5
*********
 *******
  *****
   ***
    *