//MIGUEL, DIONNE PHILIP

//CCP 1103 - ITBC

//PASCAL TRIANGLE

​

using System;

​

namespace ExampleTwo

{

    public class Program

    {

        public static void Main(string[] args)

        {

            int row;

            int val = 1;

            int sum = 0;

            string inputNumber;

​

            Console.WriteLine("Pascal's Triangle");

            Console.Write("Enter the row number: ");

            inputNumber = Console.ReadLine();

​

            if (Int32.TryParse(inputNumber, out row) == true)

            {

                if (row > 0)

                {

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

                    {

                        for(int j = 0; j <= i; j++)

                        {

                            if (j == 0||i == 0)

                            {

                                val = 1;

                            }

                            else

                            {

                                val = val * (i-j+1)/j;

                                sum = val + sum;

                            }

                        }

                    }

                    Console.WriteLine(sum + 2);

                }

                else

                {

                    Console.Write("Invalid Input. Enter a number greater than zero");

                }

            }

            else

            {

                Console.Write("Invalid Input. Enter a numeric value.");

            }

        }

    }

}