Hmmm... 
sub z{my($s,$t)=@_;return if!$t;(z($s,$t->{r},$t,z($s,$t->{l}))[$s cmp
+ $t->{d}]}

[download]
81 chars. Shorter than Masem, but longer than jcwren. However, something's wrong with it that I can't quite pinpoint. Can anyone figure out why this doesn't work?

In reply to Re: Golf: Tree searching by premchai21
in thread Golf: Tree searching by Masem

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