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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
466 8034 1643 1846 410 1758 2370

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 2017-12-02 07:48:22 zhaozilong accepted 0.13 71M CPP
4 2019-03-27 11:26:20 luogu_bot1 accepted 0.19 18M C++ 4.3.2
5 2013-01-06 12:17:23 Emoi Zhang accepted 0.21 42M C++ 4.3.2
6 2011-08-04 07:35:26 Wswxwrm accepted 0.22 25M C
7 2018-08-14 15:54:57 remoon accepted 0.22 21M C++ 4.3.2
8 2019-04-07 07:26:19 luogu_bot5 accepted 0.22 21M C++ 4.3.2
9 2011-08-04 06:17:56 Wswxwrm accepted 0.23 26M CPP
10 2011-09-08 04:19:40 nsk accepted 0.23 54M C++ 4.3.2
11 2012-03-08 16:10:10 Riatre Foo accepted 0.23 25M C++ 4.3.2
12 2016-05-17 16:16:11 mamengqi accepted 0.23 23M CPP
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 2019-04-11 10:16:17 luogu_bot4 accepted 0.24 42M C++ 4.3.2
16 2019-04-30 13:37:47 lonely_233 accepted 0.24 68M CPP14
17 2019-05-22 07:13:29 luogu_bot1 accepted 0.24 136M CPP14
18 2016-08-24 14:17:39 Lou accepted 0.25 23M C++ 4.3.2
19 2011-04-04 05:23:08 Wswxwrm accepted 0.26 39M C++ 4.3.2
20 2013-10-17 09:24:46 JCX accepted 0.26 77M CPP