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Query on a tree again! statistics & best solutions

Users accepted	Submissions	Accepted	Wrong Answer	Compile Error	Runtime Error	Time Limit Exceeded
2241	10691	9311	0	480	0	0

RANK	DATE	USER	RESULT	TIME	MEM	LANG
181	2016-02-09 19:31:37	Hibuddy_deathstar	100	2.54	20M	CPP
182	2016-02-15 02:09:25	yuzihao	100	1.87	17M	CPP
183	2016-02-15 02:23:57	sujingqi	100	1.82	17M	CPP
184	2016-02-18 15:09:11	latte0119	100	2.31	20M	CPP
185	2016-02-23 09:46:30	duyixian	100	1.50	13M	CPP
186	2016-02-24 02:18:18	964685331	100	0.53	16M	CPP
187	2016-02-29 12:58:13	Fuxey	100	0.56	11M	CPP
188	2016-03-16 09:57:37	Sengxian	100	1.07	15M	CPP
189	2016-03-24 22:11:39	Hiasat	100	1.29	17M	CPP
190	2016-04-01 09:45:06	y0rkl1u	100	1.11	7.9M	CPP
191	2016-04-08 16:25:22	HitmanBBa	100	1.44	14M	CPP
192	2016-04-10 16:48:43	mrazer	100	1.56	9.8M	CPP
193	2016-04-23 16:20:58	Master_Mind	100	2.25	26M	CPP
194	2016-04-26 07:53:34	lzx	100	1.82	15M	CPP
195	2016-04-26 08:05:11	Withinkey	100	1.80	15M	CPP
196	2016-04-26 08:43:01	tyb200815147	100	1.84	18M	CPP
197	2016-04-26 08:48:33	OZY123	100	1.82	17M	CPP
198	2016-05-13 02:52:23	mọi chuyện sẽ tốt thôi :))	100	2.35	15M	CPP
199	2016-05-16 08:09:43	cbx8888	100	1.65	15M	CPP
200	2016-05-16 09:18:21	SXROI	100	1.14	19M	CPP