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Query on a tree IV statistics & best solutions

Users accepted	Submissions	Accepted	Wrong Answer	Compile Error	Runtime Error	Time Limit Exceeded
746	11508	1558	2146	490	1801	3180

RANK	DATE	USER	RESULT	TIME	MEM	LANG
1	2012-03-09 13:26:08	wwwwodddd	accepted	0.08	38M	C++ 4.3.2
2	2012-03-09 13:28:04	wwwwodddd	accepted	0.10	40M	CPP
3	2022-10-26 02:05:16	chameleon216	accepted	0.19	28M	CPP14
4	2013-01-06 12:17:23	Emoi Zhang	accepted	0.21	42M	C++ 4.3.2
5	2011-08-04 07:35:26	Wswxwrm	accepted	0.22	25M	C
6	2018-08-14 15:54:57	remoon	accepted	0.22	21M	C++ 4.3.2
7	2024-04-02 03:48:41	yinianxingkong	accepted	0.22	37M	CPP14
8	2025-08-22 08:25:17	Velkhana	accepted	0.22	25M	CPP14
9	2025-08-25 15:52:14	bluewindde	accepted	0.22	25M	CPP14
10	2011-08-04 06:17:56	Wswxwrm	accepted	0.23	26M	CPP
11	2011-09-08 04:19:40	nsk	accepted	0.23	54M	C++ 4.3.2
12	2012-03-08 16:10:10	Riatre Foo	accepted	0.23	25M	C++ 4.3.2
13	2016-10-01 11:15:15	Travis Hance	accepted	0.23	26M	CPP14
14	2011-09-08 04:20:37	NSK SSY RYZ GY LC XC QDC ZH ZW ZWT ZSR MCX ST	accepted	0.24	54M	C++ 4.3.2
15	2019-04-30 13:37:47	lonely_233	accepted	0.24	68M	CPP14
16	2016-08-24 14:17:39	Lou	accepted	0.25	23M	C++ 4.3.2
17	2024-05-08 20:21:36	ei1333	accepted	0.25	26M	CPP14
18	2011-04-04 05:23:08	Wswxwrm	accepted	0.26	39M	C++ 4.3.2
19	2013-10-17 09:24:46	JCX	accepted	0.26	77M	CPP
20	2022-06-29 01:52:16	wind_fucker	accepted	0.26	64M	CPP14