Problem B
Bracket Matrix — Problem Statistics

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Submissions	409
Accepted submissions	134
Submission ratio	32.76%
Authors	155
Full solves [?]	111
Full solve Ratio	71.61%

#	User	Runtime	Language	Date
1	Jesper Öqvist	0.03 s	C	2018-10-31 23:56:54
2	Ivan Petrov	0.34 s	C	2019-08-07 15:17:27

#	User	Runtime	Language	Date
1	Yuren Huang	0.01 s	C++	2018-10-29 03:43:05
2	Jesper Öqvist	0.01 s	C++	2018-11-01 08:01:57
3	Lin Lee	0.02 s	C++	2018-10-30 10:41:02
4	Johan Wind	0.02 s	C++	2019-10-26 01:30:32
5	David Berard	0.02 s	C++	2020-02-05 02:12:46
6	Site Li	0.03 s	C++	2018-10-29 23:59:02
7	Ludo Pulles	0.03 s	C++	2018-11-13 22:27:56
8	Hidden user	0.03 s	C++	2018-12-29 10:54:50
9	Bay Wei Heng	0.03 s	C++	2019-12-17 12:28:40
10	Thiago Felipe Bastos da Silva	0.03 s	C++	2020-11-03 18:08:05

#	User	Runtime	Language	Date
1	Bjørn Dons	0.17 s	Java	2018-11-28 19:47:43
2	Yida Zhou	0.27 s	Java	2018-10-28 22:24:07
3	Daniel Moyer	0.27 s	Java	2018-10-28 22:55:27
4	Josh Wozniak	0.27 s	Java	2018-10-29 00:39:31
5	Arnav Sastry	0.27 s	Java	2018-11-28 19:16:36
6	Jacob Huebner	0.28 s	Java	2020-02-07 02:03:04
7	Joseph Durie	0.33 s	Java	2018-10-29 20:36:43
8	Doug Goodman	0.37 s	Java	2020-03-20 19:29:05
9	Weiyu Wang	0.38 s	Java	2018-10-29 02:59:42
10	Benjamin Reidys	0.39 s	Java	2018-11-01 00:27:21

#	User	Runtime	Language	Date
1	Lars Åström	0.11 s	Python 2	2018-12-13 16:22:11
2	Andreas Björklund	0.14 s	Python 2	2018-12-04 07:16:13
3	Hidden user	0.19 s	Python 2	2018-10-29 08:23:16
4	Paul Devlin	0.93 s	Python 2	2019-04-24 23:15:04
5	Jesper Öqvist	0.94 s	Python 2	2018-10-31 19:30:05

#	User	Runtime	Language	Date
1	Mohammad Taimoor	0.15 s	Python 3	2025-01-01 18:52:31
2	Russell	0.16 s	Python 3	2025-09-22 00:59:44
3	Hrant Hovhannisyan	0.17 s	Python 3	2025-07-29 07:50:18
4	Yong Mao	0.18 s	Python 3	2022-10-28 20:29:00
5	Nicholas Russell Saerang	0.18 s	Python 3	2024-04-26 05:00:34
6	Firman Syah	0.21 s	Python 3	2025-01-26 03:28:57
7	Seba Villalobos	0.23 s	Python 3	2022-07-13 22:34:36
8	HumbleDumble	0.32 s	Python 3	2018-11-28 23:36:41
9	Mithul Manivannan	0.41 s	Python 3	2023-02-22 19:39:34
10	Minh Pham	0.46 s	Python 3	2020-03-18 00:36:47

#	User	Length	Language	Date
1	Ivan Petrov	1331	C	2019-08-07 15:17:27
2	Jesper Öqvist	1345	C	2018-10-31 21:12:40

#	User	Length	Language	Date
1	Evan Michael Bailey	496	C++	2023-02-22 19:03:54
2	Łukasz Krawczyk	528	C++	2018-11-28 19:33:40
3	Phillo Tunru	595	C++	2023-02-11 22:40:18
4	Johan Wind	609	C++	2019-10-26 01:30:32
5	Anshil Gandhi	667	C++	2020-01-01 00:43:44
6	Ritul Kumar Singh	680	C++	2024-04-24 19:46:22
7	Muhammad Ayaz Dzulfikar	705	C++	2018-11-23 08:14:37
8	Zhe Yang	726	C++	2018-10-28 22:22:16
9	Zahid Khan	730	C++	2024-12-31 18:22:30
10	Robert Cummings	801	C++	2020-02-07 19:03:43

#	User	Length	Language	Date
1	Weiyu Wang	872	Java	2018-10-29 02:59:42
2	Joseph Durie	881	Java	2018-10-29 20:36:43
3	Levi Pinkert	886	Java	2023-02-11 22:12:49
4	Doug Goodman	948	Java	2020-03-20 19:29:05
5	Jacob Magnuson	1019	Java	2018-10-28 23:14:34
6	Yida Zhou	1132	Java	2018-10-28 22:24:07
7	Alex Coleman	1137	Java	2018-10-28 22:59:41
8	Aarav Singh	1172	Java	2018-10-29 17:03:49
9	Andrew Polizzotto	1499	Java	2020-10-31 17:55:34
10	Chow Yuan Bin	1613	Java	2019-06-28 19:28:42

#	User	Length	Language	Date
1	Lars Åström	311	Python 2	2018-12-13 16:22:11
2	Hidden user	365	Python 2	2018-10-29 08:23:16
3	Andreas Björklund	1029	Python 2	2018-12-04 07:16:13
4	Jesper Öqvist	1052	Python 2	2018-10-31 19:30:05
5	Paul Devlin	1260	Python 2	2019-04-24 23:15:04

#	User	Length	Language	Date
1	Nicholas Russell Saerang	327	Python 3	2024-04-26 05:02:22
2	Mohammad Taimoor	327	Python 3	2025-01-01 18:52:31
3	Russell	327	Python 3	2025-09-22 00:59:44
4	Seba Villalobos	354	Python 3	2022-07-13 22:34:36
5	Hrant Hovhannisyan	360	Python 3	2025-07-29 07:50:18
6	HumbleDumble	369	Python 3	2018-11-28 23:36:41
7	Yong Mao	376	Python 3	2022-10-28 20:29:00
8	Minh Pham	555	Python 3	2020-03-18 00:36:47
9	Mithul Manivannan	600	Python 3	2023-02-22 19:39:34
10	Firman Syah	748	Python 3	2025-01-26 03:28:57

Solution running time distribution