15 lines
416 B
Racket
15 lines
416 B
Racket
(define (squar x) (* x x))
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(define (square-all list-of-numbers)
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(map squar list-of-numbers))
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(define (my-map a-list)
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(cond [(empty? a-list) empty]
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[else (cons (square-all (car a-list))
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(my-map (cdr a-list)))]))
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(my-map (cons (cons 1 (cons 3 (cons 14 empty)))
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(cons (cons 3 (cons 4 empty))
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(cons (cons 43 empty)
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empty))))
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