0928

using System;

namespace _0928 { class Program { static void Main(string[] args) { Console.WriteLine("菱形三角形"); int n = Convert.ToInt32(Console.ReadLine()); for(int i = 0; i <= n; i++) { for (int j = n - i; j >= 0; j--) { Console.Write(" "); } for(int k = 1; k <= (2 * i - 1); k++) { Console.Write("*"); } Console.Write("\n");

        }
        for (int i = 1; i <= n - 1; i++)
            {
                for (int j = 0; j <= i; j++)
                {
                    Console.Write(" ");
                }
                for (int k = 1; k <= 2 * (n - i) - 1; k++)
                {
                    Console.Write("*");
                }
                Console.WriteLine();
            }
    }
}

}