{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmayokoex.hatenablog.com%2Fentry%2F2016%2F03%2F21%2F143817\" title=\"IndiaHacks 2016 - Online Edition E. Bear and Forgotten Tree 2 - mayoko\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","title":"IndiaHacks 2016 - Online Edition E. Bear and Forgotten Tree 2","type":"rich","width":"100%","published":"2016-03-21 14:38:17","url":"https://mayokoex.hatenablog.com/entry/2016/03/21/143817","categories":["CodeForces"],"image_url":null,"author_name":"mayokoex","blog_url":"https://mayokoex.hatenablog.com/","provider_url":"https://hatena.blog","blog_title":"mayoko\u2019s diary","height":"190","description":"\u554f\u984c codeforces.com \u89e3\u6cd5 \u3055\u3063\u304d\u306e\u554f\u984c\u3068\u3088\u304f\u4f3c\u3066\u3044\u307e\u3059\u3002 mayokoex.hatenablog.com\u307e\u305a, \u9802\u70b9 0 \u304b\u3089\u3064\u306a\u304c\u308b\u9802\u70b9\u3092\u5217\u6319\u3057\u307e\u3059\u3002\u3053\u308c\u304c k \u500b\u4ee5\u4e0b\u3060\u3063\u305f\u3089 impossible \u3067\u3059\u3002\u3067, \u305d\u308c\u3089\u306e\u70b9\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u3066, 0 \u4ee5\u5916\u306e\u9802\u70b9\u3068\u306a\u308b\u3079\u304f\u9023\u7d50\u3055\u305b\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u308c\u306f, \u3055\u3063\u304d\u306e\u554f\u984c\u3068\u540c\u3058\u3088\u3046\u306a\u65b9\u6cd5\u3067\u51fa\u6765\u307e\u3059(\u76f8\u5909\u308f\u3089\u305a (u, v) \u304c\u7e4b\u3052\u306a\u3044\u304b\u3069\u3046\u304b\u306e\u5224\u5b9a\u306f\u305f\u304b\u3060\u304b 2 \u56de\u3057\u304b\u3057\u306a\u3044\u306e\u3067\u8a08\u7b97\u91cf\u306f O(M log M))\u3002\u3042\u3068\u306f\u5224\u5b9a\u3067\u3059\u304c, \u9802\u70b9 0 \u304b\u3089\u4ed6\u306e\u9802\u70b9\u306b\u4f38\u3070\u3059\u5fc5\u8981\u306e\u3042\u308b\u6700\u4f4e\u672c\u6570\u304c k \u4ee5\u4e0b\u3067\u3042\u308c\u3070\u826f\u3044\u3067\u3059\u3002\u3053\u308c\u306f, \u3055\u3063\u304d\u306e\u4f5c\u696d\u3067\u51fa\u6765\u305f\u9023\u2026","version":"1.0","author_url":"https://blog.hatena.ne.jp/mayokoex/"}