{"author_name":"Ekaing","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fekaing.hatenablog.com%2Fentry%2F2013%2F03%2F07%2F202720\" title=\"Codeforces #171 Div2  C  &quot;Ladder&quot; - WARush\" 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://ekaing.hatenablog.com/","width":"100%","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","blog_title":"WARush","published":"2013-03-07 20:27:20","height":"190","url":"https://ekaing.hatenablog.com/entry/2013/03/07/202720","categories":[],"title":"Codeforces #171 Div2  C  \"Ladder\"","author_url":"https://blog.hatena.ne.jp/Ekaing/","description":"\u554f\u984c \u5730\u5f62\u306e\u9ad8\u3055\u3092\u8868\u3059A(1),A(2)....A(n-1),A(n)\u3068\u3044\u3046N\u500b\u306e\u6574\u6570\u304c\u4e0e\u3048\u3089\u308c\u308b\u3002 \u307e\u305fL R\u306e\u4e8c\u3064\u306e\u6574\u6570\u3092\u542b\u3080\u30af\u30a8\u30ea\u304cM\u500b\u4e0e\u3048\u3089\u308c\u308b\u3002 \u30af\u30a8\u30ea\u306f\u5730\u5f62\u306eL\u5730\u70b9\u304b\u3089R\u5730\u70b9\u307e\u3067\u3001\u3064\u307e\u308aA(L),A(L+1)....A(R-1),A(R)\u306e\u90e8\u5206\u304c \"Ladder\"\u3067\u3042\u308b\u304b\u3092\u554f\u3044\u5408\u308f\u305b\u3066\u3044\u308b\u3002L\u304b\u3089R\u304c\"Ladder\"\u3067\u3042\u308b\u3068\u306f\u3001L A(L) = A(X+1).... A(R-1) >= A(R) \u3068\u306a\u308b\u304b\u3069\u3046\u304b\u3067\u3042\u308b\u3002 \u3064\u307e\u308aL\u304b\u3089R\u3067\u3078\u3053\u3093\u3060\u90e8\u5206\u304c\u306a\u3051\u308c\u3070\u3044\u3044\u3088\u3063\u3066\u3053\u3068 \u4f8b) 1,3,5,6,4,3,2 \u6587\u53e5\u306a\u3057\u306bLadder 1,3,4,5,6,7,8 \u3053\u308c\u3082Ladder(X=\u2026","image_url":"http://cdn-ak.f.st-hatena.com/images/fotolife/E/Ekaing/20130307/20130307202034.jpg","type":"rich"}