2008-07-07SICPの2.2.2 Hierarchical Structures の Mapping over trees あたりを Python でやってみた scheme ;2.2.2 Hierarchical Structures ;Mapping over trees (define (scale-tree tree factor) (cond ((null? tree) ()) ((not (pair? tree)) (* tree factor)) (else (cons (scale-tree (car tree) factor) (scale-tree (cdr tree) factor))))) (scale-tree (list 1 (list 2 (list 3 4) 5) (list 6 7)) 10) ;(10 (20 (30 40) 50) (60 70)) (define
Topics:SICP in other languages - CTMWiki
