//Program Fibinacci
#include <stdio.h>

double res;
int    i, num;

double fibon (double x);

main ()
{
     do
       {
       textcolor (9);
       textbackground (1);
       clrscr ();
       printf ("Teclea el n£mero: ");
       textcolor (0); clreol ();
       scanf ("%d", &num);
       } while (num>30 || num<1);
     res = fibon(num);
     gotoxy (5,3);
     textcolor (4); clreol();
     printf ("El resultado es: ");
     textcolor  (15); clreol();
     for (i=70 ; i>22; i--)
	 {
	 gotoxy (i,3);
	 printf ("%1.0f ", res);
	 delay (75);
	 }
     getch ();
     return 0;
}

double fibon (double x)
{
       if (x<= 2.0)
	  return (1.0);
	  else
	  return (fibon(x-1)+ fibon(x-2));
}