Mapping into two lists

Marcus Stojek stojek at
Tue Sep 4 22:50:40 CEST 2001

In article <9mvmqr03kq at>, aleax at says...
> that the sorted input list itself is non-empty?  It's
> hard to gather PRECISE specs from such a succint way
> of presenting things, but, let's assume I guessed:-).
you did ;-)

now when i see it its perfectly clear. You have to use three marks
(current,currlas and item). I used only two what makes things a little
bit more complicated. I will try this strange sentinel thing in a couple
of years.

Thank you.

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