All pastes #278428 Raw Edit

Someone

public text v1 · immutable
·published 2006-12-14 01:50 UTC
rendered paste body
(cond
  [(null? s) '()]
  [(null? (rest s)) '()]
  [(null? (rest (rest s))) '()]
  [else (cons (first s) 
              (cons (first (rest s))
                    (cons (first (rest (rest s)))
                          '())))])