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Another Tree Problem statistics & best solutions

Users accepted	Submissions	Accepted	Wrong Answer	Compile Error	Runtime Error	Time Limit Exceeded
643	2841	925	1210	177	155	284

RANK	DATE	USER	RESULT	TIME	MEM	LANG
1	2012-02-23 10:51:08	wwwwodddd	accepted	0.00	16M	C++ 4.3.2
2	2010-05-25 23:36:46	Shaka Shadows	accepted	0.01	7.8M	C++ 4.3.2
3	2009-08-01 12:46:48	Oleg	accepted	0.03	8.7M	CPP
4	2016-03-21 19:56:23	Tomasz	accepted	0.04	7.5M	CPP14
5	2010-10-02 05:07:05	Theodore You	accepted	0.07	10M	C++ 4.3.2
6	2016-10-14 20:24:22	Sarvagya Agarwal	accepted	0.07	9.4M	CPP14
7	2017-09-28 19:19:38	Min_25	accepted	0.07	20M	CPP14
8	2009-02-28 05:36:26	Eigenray	accepted	0.08	6.5M	C
9	2012-02-09 13:48:54	littlefriend	accepted	0.08	6.4M	C++ 4.3.2
10	2012-05-14 14:25:46	Seter	accepted	0.08	6.2M	C
11	2017-11-20 10:13:51	Weirdo	accepted	0.08	24M	CPP14
12	2011-04-17 21:35:35	P != NP	accepted	0.09	7.2M	CPP
13	2013-02-10 15:45:29	wh2000	accepted	0.09	6.8M	C++ 4.3.2
14	2015-11-04 10:48:09	Fata Nugraha	accepted	0.09	5.8M	ASM32-GCC
15	2010-01-12 13:40:53	3xian	accepted	0.10	6.1M	C++ 4.3.2
16	2010-07-25 16:19:25	Kinan Sarmini	accepted	0.10	8.0M	C++ 4.3.2
17	2013-12-10 19:57:46	Aristofanis Rontogiannis	accepted	0.10	10M	C++ 4.3.2
18	2014-05-05 12:41:16	Alex Vistyazh	accepted	0.10	8.3M	C++ 4.3.2
19	2014-09-19 19:55:37	(@#$*__)	accepted	0.10	11M	C++ 4.3.2
20	2011-09-21 20:31:08	Problem Solver	accepted	0.11	8.0M	C++ 4.3.2