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Fibonacci Series in C#

using System;

using System.Collections.Generic;

using System.Text;


namespace Fib

{

   class Fib

   {

      static void Main(string[] args)

      {
  int f0=0,f1=1,fact;
  int n= Convert.ToInt16(Console.ReadLine());
 
  Console.WriteLine("Fibonacci numbers" +f0);
  Console.WriteLine("Fibonacci numbers" +f1);

   for(int i=1;i<=n;i++)
{
 fact=f0+f1;
 f0=f1;
 f1=fact;
Console.WriteLine("Fibonacci numbers" +fact);
   }
Console.ReadLine();
}
}}

Simple ways to get a Pascal Triangle in C#

using System;

using System.Collections.Generic;

using System.Text;

namespace PascalTriangle

{

   class PascalTriangle

   {

      static void Main(string[] args)

      {

         System.Console.WriteLine("Pascal Triangle Program");

         System.Console.Write("Enter the number of rows: ");

         string input = System.Console.ReadLine();

         int n = Convert.ToInt32(input);

        for(int i=0; i<n; i++)
        {
            int c=1;
            for(int j=0; j<=i; j++)
            {
                System.Console.Write(c);
                c=c*(i-j)/(j+1);
                   System.Console.Write(" ");
            }
           System.Console.Write("\n");
           
        }
            System.Console.WriteLine();

        System.Console.WriteLine();

      }

   }

}