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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
21	2011-02-14 18:26:31	GODLIKEOXENDUYUFEITHOUSANDOFYEARMANAGERIVERANDLAKE	100	1.37	19M	C++ 4.3.2
22	2011-02-15 13:10:26	Vani ❤ gc	100	0.74	13M	C++ 4.3.2
23	2011-02-21 03:43:32	suhang	100	1.29	16M	C++ 4.3.2
24	2011-02-25 05:29:48	tun	100	1.37	13M	C++ 4.3.2
25	2011-02-25 16:11:03	Bin Laden	100	1.37	45M	C++ 4.3.2
26	2011-03-22 12:47:35	ara*	100	1.29	15M	C++ 4.3.2
27	2011-03-27 14:07:19	z__jj	100	1.29	14M	C++ 4.3.2
28	2011-04-01 19:17:33	Trinh Tuan Phuong	100	1.51	16M	C++ 4.3.2
29	2011-04-22 05:54:38	张浩千	100	1.64	52M	C++ 4.3.2
30	2011-04-23 11:19:00	Zheng Qin	100	1.29	8.0M	C++ 4.3.2
31	2011-04-25 09:09:44	wangqinshi	100	1.29	12M	C++ 4.3.2
32	2011-04-27 15:17:55	Graphis_	100	1.37	29M	C++ 4.3.2
33	2011-04-28 13:00:01	AHdoc	100	1.33	29M	C++ 4.3.2
34	2011-05-12 07:48:21	Rully Soelaiman	100	1.29	15M	C++ 4.3.2
35	2011-06-14 12:20:07	Simon Cao	100	1.37	14M	C++ 4.3.2
36	2011-06-15 05:37:50	William Chou	100	1.38	7.8M	C++ 4.3.2
37	2011-06-15 10:07:30	wuxin	100	1.31	22M	C++ 4.3.2
38	2011-06-17 18:07:53	self_healing	100	1.22	14M	C++ 4.3.2
39	2011-06-17 22:13:09	Fish	100	1.08	18M	C++ 4.3.2
40	2011-06-22 17:16:11	gnarlycow	100	1.32	13M	C++ 4.3.2