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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
81	2012-08-06 10:46:17	睡罗汉	100	1.03	8.4M	CPP
82	2012-08-18 17:55:38	Islam Diaa	100	1.59	14M	CPP
83	2012-08-25 11:57:20	lzx	100	1.03	11M	CPP
84	2012-09-01 20:02:01	Boris	100	1.29	20M	CPP
85	2012-09-02 14:54:34	Demjan	100	1.33	13M	CPP
86	2012-10-04 15:05:12	Wing Gu	100	1.29	12M	CPP
87	2012-11-30 06:16:41	ahmed.abdrabo	100	0.81	14M	CPP
88	2012-12-11 09:44:49	volzkzg	100	1.03	7.7M	CPP
89	2012-12-11 14:54:06	TeCNoYoTTa	100	1.35	18M	CPP
90	2013-01-18 03:27:21	FLanS39	100	1.29	10M	CPP
91	2013-01-20 03:54:32	NOIgdmr	100	1.03	70M	CPP
92	2013-02-01 16:03:37	圣龙族骑士	100	1.34	15M	CPP
93	2013-02-02 14:57:39	dimitris	100	1.29	9.5M	CPP
94	2013-02-20 03:13:44	XingYiran	100	1.03	70M	CPP
95	2013-03-17 03:04:48	Crount Williams	100	1.29	83M	CPP
96	2013-04-14 03:22:10	`	100	1.03	13M	CPP
97	2013-04-22 08:28:06	Jin Ce	100	1.29	9.1M	CPP
98	2013-05-14 21:10:27	Jimmy	100	1.29	14M	CPP
99	2013-06-07 14:42:25	hogloid	100	1.38	18M	CPP
100	2013-07-14 14:26:49	Li Zhuohan	100	1.29	15M	CPP