fibonacci series in c 2b 2b recursive

1#include<iostream>
2using namespace std;
3int fib(int n) {
4   if (n <= 1)
5   return n;
6   return fib(n-1) + fib(n-2);
7}
8int main () {
9   int n = 10, i;
10   for(i=0;i<n;i++)
11   cout<<fib(i)<<" ";
12   return 0;
13}