mithilesh kumar singh

Enter the row number:5
A
B C
D E  F 
G H  I  J
K L M N O

 

   class Program

    {

        static void Main(string[] args)

        {

            int count = 65;

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

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

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

            {

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

                {

                    Console.Write(Convert.ToChar(count++));

                }

                Console.WriteLine();

            }

            Console.ReadLine();

        }