mithilesh kumar singh

5 4 3 2 1 2 3 4 5
5 4 3 2 1 2 3 4 5 
5 4 3    1    3 4 5
5 4       1       4 5
5          0          5

  class Program

    {

        static void Main(string[] args)

        {

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

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

            for (int row = 1; row <= n; row++)

            {

                for (int coll = n; coll > 1; coll--)

                {

                    if (coll >= row)

                    {

                        Console.Write(coll);

                    }

                    else

                    {

                        Console.Write(" ");

                    }

                }

                for (int col = n; col == n; col++)

                {

                    if (row == n)

                    {

                        Console.Write("0");

                    }

                    else if (col == n)

                    {

                        Console.Write("1");

                    }

                }

                for (int coll = 2; coll <= n; coll++)

                {

                    if (coll >= row)

                    {

                        Console.Write(coll);

                    }

                    else

                        Console.Write(" ");

                }

                Console.WriteLine();

            }

            Console.ReadLine();

        }

       }