Created
April 12, 2015 18:54
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| (define (map proc sequence) | |
| (accumulate (lambda (x y) (cons (proc x) y)) null sequence)) | |
| (define (append seq1 seq2) | |
| (accumulate cons seq2 seq1)) | |
| (define (length sequence) | |
| (accumulate (lambda (x y) (+ y 1)) 0 sequence)) |
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