{"categories":["Project Euler","Java","Haskell"],"image_url":null,"description":"http://projecteuler.net/index.php?section=problems&id=161 \u3084\u3063\u3068\u89e3\u3051\u305f\u3002 import java.util.*; public class P161{ static Map<Board,Long> memo; static Board board; static int h=12,w=9; static long solve(int x){ if(memo.containsKey(board))return memo.get(board); if(x==h*w)return 1;//finish if(board.shape[x])re\u2026","author_url":"https://blog.hatena.ne.jp/jeneshicc/","url":"https://jeneshicc.hatenadiary.org/entry/20081230/1230625924","title":"Problem 161","author_name":"jeneshicc","published":"2008-12-30 17:32:04","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjeneshicc.hatenadiary.org%2Fentry%2F20081230%2F1230625924\" title=\"Problem 161 - \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%","provider_name":"Hatena Blog","height":"190","version":"1.0","blog_title":"\u843d\u66f8\u304d\u3001\u6642\u3005\u843d\u5b66","blog_url":"https://jeneshicc.hatenadiary.org/","type":"rich","provider_url":"https://hatena.blog"}