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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
41	2011-06-25 11:29:45	Vladislav Haralampiev	100	1.37	15M	C++ 4.3.2
42	2011-07-02 13:36:37	Lixupeng	100	1.37	29M	C++ 4.3.2
43	2011-07-11 10:17:18	BenZ	100	1.33	9.4M	C++ 4.3.2
44	2011-07-11 12:05:00	pty	100	1.37	8.0M	C++ 4.3.2
45	2011-07-17 16:21:48	5lipper	100	1.37	17M	C++ 4.3.2
46	2011-07-23 05:29:17	Carlos Joa	100	0.74	12M	C++ 4.3.2
47	2011-07-23 12:31:38	YLSB	100	1.43	6.9M	C++ 4.3.2
48	2011-08-06 04:50:51	Jesful	100	1.77	41M	C++ 4.3.2
49	2011-08-08 20:18:05	aMR	100	1.55	17M	C++ 4.3.2
50	2011-08-12 07:05:32	stareven	100	1.32	12M	C++ 4.3.2
51	2011-08-19 16:48:44	Yuanming Hu	100	0.73	12M	C++ 4.3.2
52	2011-08-27 08:24:41	mabodx	100	1.95	21M	C++ 4.3.2
53	2011-08-29 02:35:04	Walter Erquinigo	100	1.92	16M	C++ 4.3.2
54	2011-08-31 03:34:37	Xuwei J	100	1.32	29M	C++ 4.3.2
55	2011-09-04 06:47:50	Gaston Ingaramo	100	1.37	39M	C++ 4.3.2
56	2011-09-04 16:50:56	Sunday Lee	100	1.29	19M	C++ 4.3.2
57	2011-09-06 03:47:26	明日明月	100	1.37	19M	C++ 4.3.2
58	2011-09-06 05:14:45	Lin Tian	100	1.45	19M	C++ 4.3.2
59	2011-09-10 20:21:24	Jakub Tarnawski	100	1.37	9.8M	C++ 4.3.2
60	2011-09-13 14:24:12	minjie	100	1.37	17M	C++ 4.3.2