{"description":"245 Coresilience Problem 245 - Project Euler \u30aa\u30a4\u30e9\u30fc\u306e\u03c6\u95a2\u6570\u304c\u3089\u307f\u306e\u554f\u984c\uff0e c(n) = (n - \u03c6(n)) / (n - 1) = 1 / k \u3068\u306a\u308b\u3088\u3046\u306a\uff0c\u5408\u6210\u6570\u306e\u548c\u3092\u6c42\u3081\u308b\uff0e \u63a2\u7d22\u7bc4\u56f2\u304c 2","title":"Problem 245","provider_url":"https://hatena.blog","width":"100%","height":"190","published":"2009-06-29 21:26:11","blog_title":"\u843d\u66f8\u304d\u3001\u6642\u3005\u843d\u5b66","author_url":"https://blog.hatena.ne.jp/jeneshicc/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjeneshicc.hatenadiary.org%2Fentry%2F20090629%2F1246278371\" title=\"Problem 245 - \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>","image_url":null,"categories":["Project Euler","Haskell"],"author_name":"jeneshicc","type":"rich","blog_url":"https://jeneshicc.hatenadiary.org/","url":"https://jeneshicc.hatenadiary.org/entry/20090629/1246278371","provider_name":"Hatena Blog","version":"1.0"}