{"categories":["PKU"],"description":"http://poj.org/problem?id=3119 \u539f\u70b9\u3092\u4e2d\u5fc3\u306b\u3042\u308b\u76f4\u7dda\u306e\u4e0a\u306b\u306a\u3044\u5ea7\u6a19\u306b\u756a\u53f7\u3092\u3064\u3051\u3066\u3044\u304f\u3002 \u3053\u306e\u3068\u304d\u3001\u3042\u308b2\u3064\u306e\u756a\u53f7\u304c\u76f4\u7dda\u306b\u5bfe\u3057\u3066\u540c\u3058\u5074\u306b\u3042\u308b\u304b\u3092\u5224\u5b9a\u3057\u308d\u3068\u3044\u3046\u3088\u3046\u306a\u554f\u984c\u3002","image_url":null,"type":"rich","provider_url":"https://hatena.blog","url":"https://atetubou.hatenadiary.org/entry/20120218/1329558633","title":"PKU 3119 Friends or Enemies?","provider_name":"Hatena Blog","width":"100%","height":"190","author_name":"atetubou","version":"1.0","blog_title":"\u65e5\u8a18","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fatetubou.hatenadiary.org%2Fentry%2F20120218%2F1329558633\" title=\"PKU 3119 Friends or Enemies? - \u65e5\u8a18\" 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/atetubou/","published":"2012-02-18 18:50:33","blog_url":"https://atetubou.hatenadiary.org/"}