{"version":"1.0","width":"100%","published":"2015-02-17 00:43:30","height":"190","type":"rich","categories":["Haskell"],"blog_title":"Let's write \u03b2","description":"module Main where import Data.List.Split readTriangle :: FilePath -> IO [[Int]] readTriangle fpath = do content <- readFile fpath return $ map (map read . splitOn \" \") $ lines content prob67 :: [[Int]] -> Int prob67 = head . prob67' where prob67' (x:[]) = zipWith max x (tail x) prob67' (x:xs) = let \u2026","author_name":"Pocket7878_dev","image_url":null,"url":"https://tech-blog.pocket7878.com/entry/2015/02/17/004330","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech-blog.pocket7878.com%2Fentry%2F2015%2F02%2F17%2F004330\" title=\"Project Euler 67\u3092Haskell\u3067 - Let&#39;s write \u03b2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/Pocket7878_dev/","title":"Project Euler 67\u3092Haskell\u3067","provider_url":"https://hatena.blog","blog_url":"https://tech-blog.pocket7878.com/","provider_name":"Hatena Blog"}