{"author_name":"higepon","blog_url":"https://higepon.hatenablog.com/","type":"rich","description":"\u554f\u984c2.20 \u3053\u306e\u554f\u984c\u3092\u3071\u3063\u3068\u898b\u3067\u89e3\u3053\u3046\u3068\u3057\u305f\u3089\u3042\u3063\u3068\u3044\u3046\u9593\u306b\u3001\u306f\u307e\u3063\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u7c21\u5358\u306a\u8981\u7d20\u306b\u5206\u3051\u3066\u307f\u307e\u3057\u305f \u307e\u305a\u306f\u6570\u5024\u306e\u30ea\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u3063\u3066\u3001\u305d\u306e\u4e2d\u306b\u542b\u307e\u308c\u308b\u5076\u6570\u3060\u3051\u3092\u8fd4\u3059\u95a2\u6570\u3092\u4f5c\u3063\u3066\u307f\u308b\u306e\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002 (define (collect-even list) (if (null? list) nil (if (even? (car list)) (cons (car list) (collect-even (cdr list))) (collect-even (cdr list))))) ;; (list 2 4 6)\u304c\u8fd4\u3063\u3066\u304f\u308b\u3068\u3044\u3044\u306a (collect-even (list 1 2\u2026","height":"190","provider_url":"https://hatena.blog","version":"1.0","url":"https://higepon.hatenablog.com/entry/20060418/1145347333","image_url":"http://images-jp.amazon.com/images/P/489471163X.09.MZZZZZZZ.jpg","blog_title":"higepon blog","provider_name":"Hatena Blog","width":"100%","author_url":"https://blog.hatena.ne.jp/higepon/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhigepon.hatenablog.com%2Fentry%2F20060418%2F1145347333\" title=\" \u95a2\u6570\u578b\u8a00\u8a9e\u306e\u52c9\u5f37\u306bSICP\u3092\u8aad\u3082\u3046 - (10) 2\u7ae0 - \u30c7\u30fc\u30bf\u306b\u3088\u308b\u62bd\u8c61\u306e\u69cb\u7bc9(59\u30da\u30fc\u30b8) - higepon blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Scheme","SICP"],"title":" \u95a2\u6570\u578b\u8a00\u8a9e\u306e\u52c9\u5f37\u306bSICP\u3092\u8aad\u3082\u3046 - (10) 2\u7ae0 - \u30c7\u30fc\u30bf\u306b\u3088\u308b\u62bd\u8c61\u306e\u69cb\u7bc9(59\u30da\u30fc\u30b8)","published":"2006-04-18 17:02:13"}