How to Get the Specific Value in the Pascal’s Triangle in C#

This is the best and logic building program about Pascal triangle. Pascal’s triangle has all the outer edges set as 1 each row is derived from its above row. In this Program I am trying to find the element of the triangle by getting the row number and row index from the user.

Source Code 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PascalTriangle
{
    class Program
    {
        static void Main(string[] args)
        {
            int row;
            int position;
                Console.Write("Please input a row Number : ");
                row = Convert.ToInt32(Console.ReadLine());
                Console.Write("Please input  position along the row # "+row+": ");
                position = Convert.ToInt32(Console.ReadLine());
                if (row < position)
                {
                    Console.Write( "\nRow : " + row);
                    Console.Write("\nPosition: " + position);

                    Console.Write( "\nInvalid entry.  Position must be less than ( < ) or equal to ( = ) Row.");
                    int a1 = Convert.ToInt32(Console.ReadLine());
                    return;
                }
                else
                {
                    Console.Write("\nValue at row " + row + " and position " + position + " is " + compute_pascal(row, position));
                }
                int a = Convert.ToInt32(Console.ReadLine());
        }

        private static int compute_pascal(int row, int position)
        {
            if (position == 1)
            {
                return 1;
            }
            else if(position == row)
            {
                return 1;
            }
            else
            {
                return compute_pascal(row-1, position) + compute_pascal(row-1, position-1);
            }
        }
    }
}

Output of the Program

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About Asad

Asad Niazi is Software Engineer , Programmer, Web Developer and a young mentor of BloggersTown and PProgramming. Asad Love to writes about Technology, Programming, Blogging and make money online.