{"blog_title":"\u843d\u66f8\u304d\u3001\u6642\u3005\u843d\u5b66","image_url":null,"width":"100%","author_name":"jeneshicc","type":"rich","published":"2009-01-21 20:20:04","version":"1.0","title":"Problem 181","provider_url":"https://hatena.blog","categories":["Project Euler","Haskell"],"author_url":"https://blog.hatena.ne.jp/jeneshicc/","blog_url":"https://jeneshicc.hatenadiary.org/","provider_name":"Hatena Blog","description":"http://projecteuler.net/index.php?section=problems&id=181 import Data.Array (range) import Data.Array.IO (IOArray,newArray,readArray,writeArray) import Control.Monad (forM_) b = 60;w = 40 main = do g <- newArray ((0,0),(b,w)) 0 :: IO (IOArray (Int,Int) Integer) writeArray g (0,0) 1 forM_ [(i,j,k,l) \u2026","height":"190","url":"https://jeneshicc.hatenadiary.org/entry/20090121/1232536804","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjeneshicc.hatenadiary.org%2Fentry%2F20090121%2F1232536804\" title=\"Problem 181 - \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>"}