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chelseatroy/list_reversal.scm

Last active October 29, 2019 22:02
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List Reversal
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list_reversal.scm
; 2.18
(define (reverse list)
(define (iter-list reversed-list unprocessed-remaining)
(if (null? unprocessed-remaining)
reversed-list
(iter-list (cons(car unprocessed-remaining) reversed-list) (cdr unprocessed-remaining))
)
)
(iter-list null list))
(reverse (list 3 4 5 6)) ;---> 6 4 5 3
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