{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fitto100pen.hatenadiary.org%2Fentry%2F20090604%2F1244121632\" title=\" \u6570\u72ec\u30bd\u30eb\u30d0 - \u3089\u3080\u3060\u7551\u3067\u3064\u304b\u307e\u3048\u3066 (catcher in the \u03bb)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"Haskell \u3067\u6570\u72ec\u30bd\u30eb\u30d0\u3092\u66f8\u3044\u3066\u307f\u305f\u3002 \u7279\u5fb4\u306f \u30fb\u660e\u793a\u7684\u306a\u518d\u5e30\u306f\u4f7f\u308f\u305a (iterate ...) !! 81 \u3092\u4f7f\u3063\u305f\u3002\uff08\uff18\uff11\u624b\u76ee\u306b\u89e3\u304c\u6c42\u307e\u308b\uff09 \u30fb\u63a2\u7d22\u4e2d\u306e\u30de\u30b9\u76ee\u72b6\u614b\u3092\u3001\u672a\u78ba\u5b9a\u90e8\u5206\u3068\u4eee\u78ba\u5b9a\u90e8\u5206\u306b\u5206\u3051\u3066\u6301\u3064\u3002 import List (partition,delete) mark (pos@(i,j),d) cand = (cand1++) $ filter (not.null.snd) $ map del cand2 where (cand1,cand2) = partition p cand p ((k,l),_) = k /= i && l /= j && map (`div`3) \u2026","width":"100%","blog_url":"https://itto100pen.hatenadiary.org/","height":"190","categories":["Haskell"],"image_url":null,"author_url":"https://blog.hatena.ne.jp/itto100pen/","title":" \u6570\u72ec\u30bd\u30eb\u30d0","published":"2009-06-04 22:20:32","type":"rich","blog_title":"\u3089\u3080\u3060\u7551\u3067\u3064\u304b\u307e\u3048\u3066 (catcher in the \u03bb)","provider_name":"Hatena Blog","url":"https://itto100pen.hatenadiary.org/entry/20090604/1244121632","author_name":"itto100pen","version":"1.0","provider_url":"https://hatena.blog"}