program c++ fibbonacci

#include <iostream.h>
#include <conio.h>
 
class fibonacci{
       friend ostream& operator<<(ostream&, fibonacci&);
       friend istream& operator>>(istream&, fibonacci&);
public:
        long Fibonacci(int);
private:
         int n;
 };
 
int Fibonacci(int n){
     if((n==1)||(n==2))return(1);
     else return(Fibonacci(n-1)+Fibonacci(n-2));
 }
istream& operator>>(istream& in, fibonacci& masukan){
      cout<<"masukan banyak deret = ";
      in>>masukan.n;       
         return in;
 }
ostream& operator<<(ostream& out, fibonacci& keluaran){        
      out<<"Deret fibonaccinya : \n";
      for(int i=1;i<=keluaran.n;i++)
      out<<Fibonacci(i)<< " ";            
      out<<endl; 
      return out;             
 }
int main(){
     fibonacci deret;
     cin>>deret;
     cout<<deret;
     cout<<endl;
     getch();
     return 0;
 }