(C)Fonksiyonlar ile fibonacci dizisi

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#include<math.h>
**** fibonacci(int []);
**** fibonacci(int a[])
{
 int i;
 for(i=2;i<20;i++)
 {
 if(a[i]%2==0)
 printf("%d\n",a[i]);
 }
 
 
 
 
}
int main()
{
 int fib[20],i;
 
 fib[0]=0;
 fib[1]=1;
 
 for(i=2;i<20;i++)
 {
 fib[i]=fib[i-1]+fib[i-2];
 printf("fib[%d]:%d\n",i,fib[i]);
 }
 printf("\n");
 printf("il 20 fib dizisinde 2 e bolunebilen sayilar:\n");
 fibonacci(fib);
 }