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From: "B. Pym" <Nobody447095@here-nor-there.org>
Newsgroups: comp.lang.lisp
Subject: Re: Detele repeated in a list
Date: Sun, 21 Jul 2024 00:21:28 -0000 (UTC)
Organization: A noiseless patient Spider
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B. Pym wrote:

> Pascal Costanza wrote:
> 
> > (defun rem-duplicates (list)
> >    (loop for (first . rest) on (append list list)
> >          unless (member first (reverse rest) :test #'equal)
> >          collect first))
> 
> Gauche Scheme
> 
> (define (rem-dups lst)
>   (fold
>     (lambda (x accum) (if (member x accum) accum (cons x accum)))
>     '()
>     lst))
> 
> (rem-dups '(0 2 3 4 (8 7) 3 2 0 (8 7)))
>   ===>
> (4 3 2 0 (8 7))

Actual result:

((8 7) 4 3 2 0)