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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
121	2012-08-05 05:02:29	yk	100	1.34	15M	C++ 4.3.2
122	2012-08-06 16:33:47	Daniel	100	1.37	9.8M	C++ 4.3.2
123	2012-08-09 04:09:25	zzh	100	1.29	8.5M	C++ 4.3.2
124	2012-08-09 04:23:07	Eazy jobb	100	1.08	9.4M	C++ 4.3.2
125	2012-08-09 04:28:12	naruto	100	1.37	8.6M	C++ 4.3.2
126	2012-08-09 10:48:44	owenoy	100	1.37	9.4M	C++ 4.3.2
127	2012-08-13 10:53:48	lxyxynt	100	1.37	28M	C++ 4.3.2
128	2012-08-24 14:31:53	guoqiang ma	100	0.94	69M	C++ 4.3.2
129	2012-08-31 10:54:22	Momontho	100	0.54	32M	C++ 4.3.2
130	2012-09-01 17:42:17	wyl8899	100	1.29	9.5M	C++ 4.3.2
131	2012-09-06 11:01:58	liouzhou_101	100	1.45	18M	C++ 4.3.2
132	2012-09-06 12:27:16	lanshiyi	100	1.37	13M	C++ 4.3.2
133	2012-09-16 02:07:31	睡罗汉	100	1.37	13M	C++ 4.3.2
134	2012-09-24 07:43:15	林俊宏	100	1.29	7.7M	C++ 4.3.2
135	2012-09-29 03:01:43	Ilya	100	1.37	15M	C++ 4.3.2
136	2012-09-29 13:35:52	teoy	100	1.37	18M	C++ 4.3.2
137	2012-10-12 21:56:08	Dmitry Matov	100	1.37	14M	C++ 4.3.2
138	2012-10-24 04:54:29	jfantasy	100	1.37	12M	C++ 4.3.2
139	2012-10-31 14:37:55	wodesuck	100	1.29	10M	C++ 4.3.2
140	2012-11-16 03:02:57	Soko	100	0.74	16M	C++ 4.3.2