{"title":"Recovering BST [Codeforces Round #505 D]","version":"1.0","width":"100%","url":"https://blog.hamayanhamayan.com/entry/2018/08/20/195806","published":"2018-08-20 19:58:06","author_url":"https://blog.hatena.ne.jp/hamayanhamayan/","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.hamayanhamayan.com%2Fentry%2F2018%2F08%2F20%2F195806\" title=\"Recovering BST [Codeforces Round #505 D] - \u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","type":"rich","blog_url":"https://blog.hamayanhamayan.com/","blog_title":"\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093","image_url":null,"provider_name":"Hatena Blog","description":"http://codeforces.com/contest/1025/problem/DN\u9802\u70b9\u3068\u305d\u306e\u9802\u70b9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u308b\u6570\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u3002 \u4ee5\u4e0b\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u4e8c\u5206\u63a2\u7d22\u6728\u304c\u4f5c\u308c\u308b\u304b \u4e8c\u5206\u63a2\u7d22\u6728\u306b\u306a\u3063\u3066\u3044\u308b\uff08\u5de6\u8fba\u306e\u9802\u70b9\uff1c\u305d\u306e\u9802\u70b9\uff1c\u53f3\u8fba\u306e\u9802\u70b9\uff09 \u8fba\u306e\u7aef\u70b9\u306e\u6570\u306egcd\u304c1\u3088\u308a\u5927\u304d\u3044 \u524d\u63d0\u77e5\u8b58 \u533a\u9593DP \u8003\u5bdf\u904e\u7a0b 1. N\u2266700\u3068\u3044\u3046\u306e\u304c\u6700\u3082\u91cd\u8981 2. \u4e8c\u5206\u63a2\u7d22\u6728\u306e\u7279\u5fb4\u306f\u3001\u771f\u3093\u4e2d\u304c\u6c7a\u307e\u308b\u3068\u3001\u3042\u3068\u306f\u5de6\u5074\u3068\u53f3\u5074\u306b\u5206\u304b\u308c\u308b\u304b\u3089\u533a\u9593DP\u611f\u304c\u51fa\u3066\u304f\u308b 3. \u72b6\u614bN^3, \u9077\u79fbN\u306f\u3059\u3050\u51fa\u3066\u304f\u308b f(l,r,pre) := [l,r)\u306e\u4e8c\u5206\u63a2\u7d22\u6728\u69cb\u7bc9\u304c\u6b8b\u3063\u3066\u3044\u3066\u3001\u89aa\u306e\u9802\u70b9\u304cpre\u3067\u3042\u308b\u5834\u5408\u306b\u69cb\u7bc9\u53ef\u80fd\u304b 4. p\u2026","author_name":"hamayanhamayan","categories":["\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"]}