{"description":"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 Haskell 7\u7ae0 \u9ad8\u968e\u95a2\u6570 7.3 \u7573\u8fbc\u95a2\u6570 reverse \u3092 foldr \u3067\u4f5c\u308b\u4f8b\u304c\u9762\u767d\u3044\u306e\u3067\u5199\u7d4c\u3002 -- \u666e\u901a\u306e reverse \u306e\u5b9a\u7fa9 reverse :: [a] -> [a] reverse [] = [] reverse (x:xs) = reverse xs ++ [x] reverse [1,2,3] \u3092\u5c55\u958b\u3059\u308b\u3068 reverse 1:(2:(3:[])) (reverse (2:(3:[]))) ++ [1] (reverse (3:[])) ++ [2] ++ [1] (reverse []) ++ [3] ++ [2] ++ [1] [] ++ [3\u2026","published":"2010-04-05 06:44:48","image_url":null,"type":"rich","blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","height":"190","url":"https://sirocco.hatenadiary.org/entry/20100405/1270417488","author_url":"https://blog.hatena.ne.jp/sirocco/","provider_url":"https://hatena.blog","blog_url":"https://sirocco.hatenadiary.org/","title":"\u300c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 Haskell\u300d \u8aad\u66f8\u30e1\u30e2 7.3 \u7573\u8fbc\u95a2\u6570","provider_name":"Hatena Blog","author_name":"sirocco","version":"1.0","categories":["Haskell"],"width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20100405%2F1270417488\" title=\"\u300c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 Haskell\u300d \u8aad\u66f8\u30e1\u30e2 7.3 \u7573\u8fbc\u95a2\u6570 - sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}