{"url":"https://tmurata.hatenadiary.org/entry/20090520/1242777513","title":"SICP\u554f\u984c2.32","provider_name":"Hatena Blog","categories":["SICP"],"blog_title":"tmurata\u306e\u65e5\u8a18","blog_url":"https://tmurata.hatenadiary.org/","description":"\u96c6\u5408\u306e\u90e8\u5206\u96c6\u5408\u3092\u4f5c\u308a\u51fa\u3059\u624b\u7d9a\u304d\u306e\u6b21\u306e\u5b9a\u7fa9 (define (subsets s) (if (null? s) (list ()) (let ((rest (subsets (cdr s)))) (append rest (map (lambda (x) (cons (car s) x)) rest))))) \u5b9f\u9a13 (subsets (list 1 2 3)) ; (() #0=(3) #1=(2) #2=(2 . #0#) (1) (1 . #0#) (1 . #1#) (1 . #2#)) \u3046\u307e\u304f\u3044\u304b\u306a\u3044\u2026\u3002\u4f55\u3067? \u3068\u3044\u3046\u3053\u3068\u3067\u3001Google\u5148\u751f\u306b\u805e\u3044\u3066\u307f\u308b\u3068subsets\u306e\u5b9a\u7fa9\u306f\u3053\u308c\u3067OK\u2026","version":"1.0","height":"190","author_name":"tmurata","author_url":"https://blog.hatena.ne.jp/tmurata/","published":"2009-05-20 08:58:33","type":"rich","image_url":null,"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftmurata.hatenadiary.org%2Fentry%2F20090520%2F1242777513\" title=\"SICP\u554f\u984c2.32 - tmurata\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%"}