FIBONACCI SERIES

PROGRAM:

using System;

usingSystem.Collections.Generic;

usingSystem.Linq;

usingSystem.Text;

usingSystem.Threading.Tasks;

namespacefibonacci

{

class Program

    {

static void Main(string[] args)

        {

int f1 = -1, f2 = 2, f3, i;

Console.Write("Enter the fibonacci series:");

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

Console.WriteLine("The Series is:");

for (i = 0; i< n; i++)

            {

                f3 = f1 + f2;

                f1 = f2;

                f2 = f3;

Console.Write(f3 + " ");

            }

Console.ReadLine();

        }}}