mithilesh kumar singh

Enter the row: 5

              1
           2 3 4
        5 4 3 2 1
     2 3 4 5 4 3 2
  1 2 3 4 5 4 3 2 1

  class Program

    {

        static void Main(string[] args)

        {

            Console.WriteLine("Enter the row number");

            int n = int.Parse(Console.ReadLine());

            bool flag = true;

            int temp = 1;

            for (int row = 0; row <= n; row++)

            {

                for (int space = n; space > row; space--)

                {

                    Console.Write(" ");

                }

                for (int coll = 0; coll < row * 2 - 1; coll++)

                {

                    Console.Write(temp);

                    if (temp != n && flag)

                    {

                        temp++;

                        if (temp == n)

                        {

                            flag = false;

                        }

                    }

                    else

                    {

                        temp--;

                        if (temp == 1)

                        {

                            flag = true;

                        }

                    }

                }

                Console.WriteLine();

            }

            Console.WriteLine();

            Console.ReadLine();

        }

    }