{"image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/b/babcs2035/20190316/20190316162432.png","author_url":"https://blog.hatena.ne.jp/babcs2035/","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbabcs2035.hateblo.jp%2Fentry%2F2019%2F03%2F16%2F162443\" title=\"AtCoder Grand Contest 028\uff1aB - Removing Blocks - \u304d\u308d\u304f\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://babcs2035.hateblo.jp/","title":"AtCoder Grand Contest 028\uff1aB - Removing Blocks","provider_name":"Hatena Blog","version":"1.0","published":"2019-03-16 16:24:43","url":"https://babcs2035.hateblo.jp/entry/2019/03/16/162443","width":"100%","type":"rich","blog_title":"\u304d\u308d\u304f","height":"190","description":"\u554f\u984c \u89e3\u6cd5 \u89e3\u7b54 \u554f\u984c atcoder.jp \u89e3\u6cd5 \u5404\u30d6\u30ed\u30c3\u30af\u306b\u3064\u3044\u3066\u305d\u306e\u30d6\u30ed\u30c3\u30af\u306e\u91cd\u3055\u304c\u7b54\u3048\u306b\u52a0\u7b97\u3055\u308c\u308b\u56de\u6570\u3092\u6c42\u3081\u305f\u3044\uff0e\u30d6\u30ed\u30c3\u30af i \u306e\u91cd\u3055\u304c\u52a0\u7b97\u3055\u308c\u308b\u56de\u6570\u3092\u6c42\u3081\u308b\uff0e\u30d6\u30ed\u30c3\u30af i \u3068\u30d6\u30ed\u30c3\u30af j \u304c\u9023\u7d50\u3067\u3042\u308b\u5834\u5408\u306e\u6570\u3092 P(i, j) \u3068\u304a\u304f\uff0eP(i, j) (1 <= j <= N) \u306e\u548c\u304c\u30d6\u30ed\u30c3\u30af i \u306e\u91cd\u3055\u304c\u7b54\u3048\u306b\u52a0\u7b97\u3055\u308c\u308b\u56de\u6570\u306b\u306a\u308b\uff0e i <= j \u306e\u4e0b\u3067\u8003\u3048\u308b\u3068\uff0c\u30d6\u30ed\u30c3\u30af i \u3068\u30d6\u30ed\u30c3\u30af j \u304c\u9023\u7d50\u3067\u3042\u308b\u3068\u304d\uff0c\u533a\u9593 [j, i] \u306e\u30d6\u30ed\u30c3\u30af (|i - j| + 1) \u500b\u306f\uff0c\u3069\u308c\u3082\u53d6\u308a\u9664\u304b\u308c\u3066\u3044\u306a\u3044\uff0e\u4e00\u65b9\uff0c\u305d\u308c\u4ee5\u5916\u306e\u533a\u9593\u306e\u30d6\u30ed\u30c3\u30af N - (|i - j| + 1) \u500b\u306f\uff0c\u53d6\u308a\u9664\u304b\u2026","author_name":"babcs2035","categories":["\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","AtCoder 600 \u70b9\u554f\u984c"]}