{"description":"http://projecteuler.net/index.php?section=problems&id=183log\u3068\u3063\u3066\u5fae\u5206\u3057\u305f\u3002 del :: Integral a => a -> a -> a del p = until ((0/=).(`mod` p)) (`div` p) d ::Integral a => a -> a d n | (1==).del 5.del 2.div r' $ (gcd n r') = -n | otherwise = n where r = fromIntegral.floor $ fromIntegral n / (exp 1) r' | (r+1)\u2026","author_url":"https://blog.hatena.ne.jp/jeneshicc/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjeneshicc.hatenadiary.org%2Fentry%2F20090121%2F1232540872\" title=\"Problem 183 - \u843d\u66f8\u304d\u3001\u6642\u3005\u843d\u5b66\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2009-01-21 21:27:52","blog_title":"\u843d\u66f8\u304d\u3001\u6642\u3005\u843d\u5b66","author_name":"jeneshicc","width":"100%","version":"1.0","provider_url":"https://hatena.blog","height":"190","image_url":null,"url":"https://jeneshicc.hatenadiary.org/entry/20090121/1232540872","type":"rich","provider_name":"Hatena Blog","blog_url":"https://jeneshicc.hatenadiary.org/","title":"Problem 183","categories":["Project Euler","Haskell"]}