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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
101	2012-04-04 07:14:00	陈迪	100	1.97	12M	C++ 4.3.2
102	2012-04-05 15:42:33	VDQD	100	1.37	16M	C++ 4.3.2
103	2012-04-06 05:20:19	Kael Fort	100	1.37	9.4M	C++ 4.3.2
104	2012-04-06 06:09:05	Alex	100	1.29	13M	C++ 4.3.2
105	2012-04-07 08:42:38	Xiaotao	100	1.29	12M	C++ 4.3.2
106	2012-04-07 08:46:55	liulu	100	1.35	16M	C++ 4.3.2
107	2012-04-17 08:15:00	daniel soncco	100	1.37	19M	C++ 4.3.2
108	2012-04-17 15:55:58	psi	100	1.37	14M	C++ 4.3.2
109	2012-04-20 04:24:39	Shilin Huang	100	1.35	8.8M	C++ 4.3.2
110	2012-04-20 17:32:22	Cheng Yufeng	100	1.29	7.2M	C++ 4.3.2
111	2012-04-22 17:01:58	高宇	100	1.46	13M	C++ 4.3.2
112	2012-06-08 07:20:57	a142857a	100	1.37	15M	C++ 4.3.2
113	2012-06-13 05:57:04	wybwzl	100	1.37	7.2M	C++ 4.3.2
114	2012-06-24 12:09:33	Ahmed Kamel [ahm.kam_92]	100	1.79	15M	C++ 4.3.2
115	2012-06-27 15:49:50	lz	100	1.29	7.2M	C++ 4.3.2
116	2012-06-29 04:47:47	liujinyu	100	1.37	11M	C++ 4.3.2
117	2012-07-01 15:38:45	=====e^(iπ)+1=0=====	100	1.37	13M	C++ 4.3.2
118	2012-07-26 14:48:04	sinian	100	1.37	17M	C++ 4.3.2
119	2012-07-28 14:39:40	panzheyi	100	1.37	26M	C++ 4.3.2
120	2012-07-30 10:03:42	xiaodao	100	1.47	7.9M	C++ 4.3.2