[gouranga]

Your code iterated more than once. Mine doesn't. Mine is O(N). This is one of the side effects of using all the functionality.

On a positive note, your example is very lisp-like.

[thomasz]

> Your code iterated more than once.

Uh... no.

*edit The first element is iterated three times, the second two times and the rest once, making it O(n).