PROGRAAM ON FIBONAACI SERIES

#include<iostream.h>
#include<conio.h>
void main()
{
   unsigned long first=0,second=1,third,n;
   clrscr();
   cout<<"Enter the limit:";
   cin>>n;
   cout<<"Fibonaaci Series: ";
   cout<<first<<" "<<second;
   for(int i=2;i<n;i++)
   {
      third=first+second;
      cout<<" "<<third;
      first=second;
      second=third;
   }
   getch();
}