c program to generate fibonacci series using recursion

#include<stdio.h>
#include<conio.h>
void fibo(int n)
{
static int first=0,second=1,sum=0;
if(n>0)
{
sum=first+second;
first=second;
second=sum;
printf("%d\t",sum);
fibo(n-1);
}

}
void main()
{
int n;
clrscr();
printf("enter  the range of fibonacci series.");
scanf("%d",&n);
printf("%d\t",0);
printf("%d\t",1);
fibo(n);
getch();
}