Solution for Exercise 2.28 List of tree leaves

Code Review

Compare your solutions

    #| BEGIN (Write your solution here) |#
(define (fringe x)
  (cond ((null? x) '())
        ((not (pair? x)) (list x))
        (else (append (fringe (car x))
                      (fringe (cdr x))))))
#| END |#

    #| BEGIN (Write your solution here) |#
(define (fringe x)
  (cond ((null? x) '())
        ((not (pair? x)) (list x))
        (else (append (fringe (car x))
                      (fringe (cdr x))))))
#| END |#

    #| BEGIN (Write your solution here) |#
(define (fringe x)
  (cond ((null? x) '())
        ((not (pair? x)) (list x))
        (else (append (fringe (car x))
                      (fringe (cdr x))))))
#| END |#

    #| BEGIN (Write your solution here) |#
(define (fringe x)
  (cond ((null? x) '())
        ((not (pair? x)) (list x))
        (else (append (fringe (car x))
                      (fringe (cdr x))))))
#| END |#