Reverse

Define a procedure reverse that takes a list as argument and returns a list of the same elements in reverse order:

(reverse (list 1 4 9 16 25))
(25 16 9 4 1)

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Run

(check-equal? (reverse (list 1)) (list 1))
(check-equal? (reverse (list 2 4 6 9)) (list 9 6 4 2))
(check-equal? (reverse (list 1 4 9 16 25)) '(25 16 9 4 1))