{"published":"2009-12-05 00:27:20","provider_name":"Hatena Blog","title":"Problem 267","author_name":"jeneshicc","image_url":null,"width":"100%","categories":["Project Euler","Haskell"],"type":"rich","blog_title":"\u843d\u66f8\u304d\u3001\u6642\u3005\u843d\u5b66","blog_url":"https://jeneshicc.hatenadiary.org/","description":"http://projecteuler.net/index.php?section=problems&id=267 \u5358\u7d14\u306a\u8a08\u7b97\u30df\u30b9\u3092\u591a\u6570\u3057\u3066\uff0c\u3069\u3046\u3057\u3088\u3046\u3082\u306a\u304b\u3063\u305f\uff0e \u554f\u984c\u81ea\u4f53\u306f\u7c21\u5358\uff0e \u30e1\u30e2 import Text.Printf \u3057\u3066 printf \"%.12f\\n\" pi \u3068\u3059\u308b\u3068\u6709\u52b9\u6570\u5b5712\u6841\u3067\u8868\u793a\u3057\u3066\u304f\u308c\u308b\uff0e","height":"190","provider_url":"https://hatena.blog","version":"1.0","author_url":"https://blog.hatena.ne.jp/jeneshicc/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjeneshicc.hatenadiary.org%2Fentry%2F20091205%2F1260026840\" title=\"Problem 267 - \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>","url":"https://jeneshicc.hatenadiary.org/entry/20091205/1260026840"}