{"author_name":"kiririmode","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","type":"rich","author_url":"https://blog.hatena.ne.jp/kiririmode/","categories":["SICP"],"provider_url":"https://hatena.blog","provider_name":"Hatena Blog","title":"\u554f\u984c2-43 (2.2.3  Sequences as Conventional Interfaces)","height":"190","blog_url":"https://kiririmode.hatenablog.jp/","image_url":null,"published":"2007-12-10 00:00:01","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20071210%2Fp2\" title=\"\u554f\u984c2-43 (2.2.3  Sequences as Conventional Interfaces) - \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>","url":"https://kiririmode.hatenablog.jp/entry/20071210/p2","version":"1.0","description":"Louis Reasoner\u304c\u307e\u305f\u30df\u30b9\u3092\u3057\u3066\u3001\u6628\u65e5\u306en-queen\u554f\u984c\u306eflatmap\u4ee5\u4e0b\u3092\u3053\u3093\u306a\u98a8\u306b\u3057\u3066\u66f8\u304d\u3084\u304c\u3063\u305f\u3089\u3057\u3044\u3002 (flatmap (lambda (new-row) (map (lambda (rest-of-queens) (adjoin-position new-row k rest-of-queens)) (queen-cols (- k 1)))) (enumerate-interval 1 board-size)) \u3067\u3001\u9045\u3044\u9045\u3044\u3068\u304b\u8a00\u3063\u3066\u308b\u3002Louis--\u3002 \u306a\u3093\u3067\u9045\u3044\u306e\u304b\u3063\u3066\u306e\u304c\u307e\u305a\u7b2c\u4e00\u306e\u554f\u984c\u306a\u3093\u3067\u3059\u3051\u3069\u3001\u5404\u5217\u306equeen\u306e\u5834\u6240\u3092\u6c7a\u3081\u308b\u3054\u3068\u306b\u3001\u6642\u9593\u306e\u304b\u304b\u308bqueen\u2026"}