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Which of the following is the correct definition of a function to find the length of a list? (define (length l) (if (equal? l ())
Which of the following is the correct definition of a function to find the length of a list?
(define (length l) (if (equal? l ()) 1 (+ 1 (length (cdr l))))) | |
(define (length l) (if (equal? l ()) 0 (+ 1 (length (cdr l))))) | |
(define (length l) (if (equal? l ()) 0 (+ 1 (cdr (length l))))) | |
(define (length l) (if (equal? l ()) 0 (length (cdr (+ 1 l))))) | |
(define (length l) (if (equal? l ()) 0 (length (+ 1 (cdr l))))) |
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