Subject: Re: Push/Pop for list tail
From: (Rob Warnock)
Date: Thu, 28 Feb 2008 04:56:14 -0600
Newsgroups: comp.lang.lisp
Message-ID: <>
vanekl  <> wrote:
| I guess I should have been explicit by saying that
| the data structure has to expand and contract from both
| ends, and by the time the algorithm has finished running
| the data structure is discarded.

I think you want this:

or maybe this:


Rob Warnock			<>
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