{"provider_url":"https://hatena.blog","version":"1.0","blog_url":"https://jeneshicc.hatenadiary.org/","blog_title":"\u843d\u66f8\u304d\u3001\u6642\u3005\u843d\u5b66","description":"http://projecteuler.net/index.php?section=problems&id=156 import Data.Char import Data.List count :: Int -> [Int] -> Integer count d = genericLength.filter(==d) listToInt :: [Int] -> Integer listToInt = foldl' add 0 where add a b = a*10+toInteger b intToList,intToList' :: Integer -> [Int] intToList \u2026","title":"Problem 156","provider_name":"Hatena Blog","type":"rich","height":"190","published":"2008-12-23 23:49:07","author_name":"jeneshicc","author_url":"https://blog.hatena.ne.jp/jeneshicc/","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjeneshicc.hatenadiary.org%2Fentry%2F20081223%2F1230043747\" title=\"Problem 156 - \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>","width":"100%","categories":["Project Euler","Haskell"],"url":"https://jeneshicc.hatenadiary.org/entry/20081223/1230043747"}