{"description":"\u554f\u984c http://community.topcoder.com/stat?c=problem_statement&pm=10717'.'\u304b'0'\u306e\u3069\u3061\u3089\u304b\u306e\u8981\u7d20\u3092\u6301\u3064\u30b0\u30ea\u30c3\u30c9\u3092\u307e\u305a\u8a08\u7b97\u3059\u308b\u3002\u8fba\u306e\u9577\u3055\u304c3\u4ee5\u4e0a\u3067\u8fba\u304c\u5168\u3066'0'\u3067\u3042\u308b\u9577\u65b9\u5f62\u306e\u6570\u3092\u6c42\u3081\u3088\u3002\u983b\u51fa\u554f\u984c\u3063\u307d\u3044\u3002\u666e\u901a\u306b\u3059\u308b\u3068O(n^4)\u3067\u9593\u306b\u5408\u308f\u306a\u3044\u3002\u307e\u305a\u306f\u3042\u308b\u5ea7\u6a19\u304b\u3089\u5de6\u5074\u306b\u3069\u308c\u3060\u3051'0'\u304c\u9023\u7d9a\u3059\u308b\u304b\u6c42\u3081\u3066\u304a\u304f\u3002\u5f8c\u306b2\u30ab\u30e9\u30e0\u9078\u3093\u3067\u3001\u305d\u306e\u4e2d\u3067y\u3092\u7e26\u65b9\u5411\u306b\u52d5\u304b\u3059\u3002\u3053\u306e\u6642\u306b2\u884c\u524d\u306b\u8fba\u3092\u5f35\u308c\u308b\u306a\u3089cnt\u3092\u5897\u3084\u3057\u3066\u3044\u304d\u3001\u4eca\u898b\u3066\u3044\u308by\u884c\u76ee\u306b\u3082\u8fba\u304c\u5f35\u308c\u308b\u3068\u5206\u304b\u3063\u305f\u6642\u70b9\u3067cnt\u3092\u5408\u8a08\u5024\u306b\u8db3\u3057\u3066\u3044\u304f\u3002\uff08\u8ffd\u8a18\uff09 \uff12\u884c\u524d\u306b\u8fba\u304c\u5f35\u308c\u308b\u306e\u3092\u8abf\u3079\u3066\u3044\u308b\u306e\u306f\u3001\u30c9\u30fc\u30ca\u30c4\u306e\u2026","height":"190","width":"100%","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Farea.hateblo.jp%2Fentry%2F2013%2F06%2F02%2F233537\" title=\"SRM 455 Div2 Hard DonutsOnTheGrid - Area1\u306eif(memo[i][j])\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","title":"SRM 455 Div2 Hard DonutsOnTheGrid","type":"rich","author_url":"https://blog.hatena.ne.jp/Area1/","image_url":null,"provider_name":"Hatena Blog","categories":["\u63a2\u7d22","SRM"],"author_name":"Area1","published":"2013-06-02 23:35:37","url":"https://area.hateblo.jp/entry/2013/06/02/233537","blog_title":"Area1\u306eif(memo[i][j])","blog_url":"https://area.hateblo.jp/"}