{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20071202%2Fp2\" title=\"\u554f\u984c2-35 - \u7406\u7cfb\u5b66\u751f\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>","type":"rich","published":"2007-12-02 00:00:01","url":"https://kiririmode.hatenablog.jp/entry/20071202/p2","author_url":"https://blog.hatena.ne.jp/kiririmode/","width":"100%","version":"1.0","author_name":"kiririmode","description":"\u6728\u69cb\u9020\u306e\u8449\u306e\u6570\u3092\u6570\u3048\u308bcount-leaves\u3063\u3066\u306e\u304c\u524d\u306b\u3042\u3063\u305f\u3093\u3067\u3059\u3051\u3069\u3001\u305d\u308c\u3092accumulate\u4f7f\u3063\u3066\u66f8\u304d\u76f4\u305b\u3060\u3063\u3066\u3002 accumulate\u306e\u4eba\u6c17\u306b\u5ac9\u59ac\u3002 accumulate\u306f\u8d85\u4eba\u6c17\u8005\u3067\u3059\u3002\u62bd\u8c61\u5ea6\u304c\u9ad8\u3044\u3068\u4eba\u6c17\u8005\u306b\u306a\u308c\u308b\u3002 (define (accumulate op initial sequence) (if (null? sequence) initial (op (car sequence) (accumulate op initial (cdr sequence))))) map\u3082\u4eba\u6c17\u8005\u3002\u3068\u3066\u3082\u304b\u308f\u3044\u3044\u3002 (define (map p sequence) (accumulate \u2026","blog_url":"https://kiririmode.hatenablog.jp/","height":"190","categories":["SICP"],"blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","title":"\u554f\u984c2-35","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","image_url":null}