C Programming :: Functions - Discussion

#include<stdio.h>
int main()
{
 int j,ans;
 j = 4;
ans = count(4);
printf("%d\n",ans);
return 0;
}
int count(int  i)
{
if ( i < 0) 
return(i);
else
return( count(i-2) + count(i-1));
}