{"image_url":null,"blog_url":"https://bouzuya.hatenablog.com/","author_name":"bouzuya","version":"1.0","type":"rich","blog_title":"bouzuya.hatenablog.com","width":"100%","provider_name":"Hatena Blog","height":"190","description":"\u30c7\u30f3\u30bd\u30fc\u30af\u30ea\u30a8\u30a4\u30c8\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b3\u30f3\u30c6\u30b9\u30c82022 ( ABC239 : AtCoder Beginner Contest 239 ) F - Construct Highway \u3092\u89e3\u3044\u305f\u3002 \u554f\u984c: https://atcoder.jp/contests/abc239/tasks/abc239_f \u672c\u756a\u3067\u306f\u89e3\u3051\u306a\u304b\u3063\u305f\u3002 N \u9802\u70b9 N - 1 \u8fba\u3067\u9023\u7d50\u306a\u306e\u3067\u6728\u306b\u306a\u308b\u3053\u3068\u306f\u5206\u304b\u3063\u305f\u3002\u5165\u6b21\u6570\u30fb\u51fa\u6b21\u6570\u306e\u548c\u306f 2 * (N - 1) \u306a\u306e\u3082\u5206\u304b\u308b\u3002 D_i \u306e\u548c\u304c 2 * (N - 1) \u3067\u306a\u3044\u5834\u5408\u306f NG \u3002 DSU (Union-Find) \u3092\u4f7f\u3063\u3066\u9023\u7d50\u6210\u5206\u3092\u8abf\u3079\u305f\u3002\u65e2\u5b58\u306e\u8fba\u304c\u9023\u7d50\u6e08\u307f\u306e\u9802\u70b9\u3092\u518d\u5ea6\u2026","published":"2022-02-21 21:47:57","provider_url":"https://hatena.blog","categories":[],"title":"ABC239 F - Construct Highway \u3092\u89e3\u3044\u305f","author_url":"https://blog.hatena.ne.jp/bouzuya/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbouzuya.hatenablog.com%2Fentry%2F2022%2F02%2F21%2F214757\" title=\"ABC239 F - Construct Highway \u3092\u89e3\u3044\u305f - bouzuya.hatenablog.com\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://bouzuya.hatenablog.com/entry/2022/02/21/214757"}