Problem A
Bracket Sequence — Problem Statistics

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Submissions	1472
Accepted submissions	430
Submission ratio	29.21%
Authors	371
Full solves [?]	298
Full solve Ratio	80.32%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2020-11-06 10:49:00
2	Mirel Cosulschi	0.03 s	C	2023-12-02 21:23:47

#	User	Runtime	Language	Date
1	CRISTIAN JUAN MITA ZEBALLOS	0.14 s	C#	2025-09-22 18:55:16
2	Artur Niewiadomski	0.16 s	C#	2020-11-13 16:40:19
3	Erik Kristian Gylling	0.20 s	C#	2024-02-21 21:02:44

#	User	Runtime	Language	Date
1	Tomas Lagland	0.01 s	C++	2020-11-08 22:48:10
2	Andree Stef	0.01 s	C++	2022-04-23 13:33:52
3	Lyubomir Savekov	0.02 s	C++	2022-09-19 13:56:13
4	Hyunjun Lee	0.02 s	C++	2022-10-29 19:52:39
5	Hasan Mubarok	0.02 s	C++	2023-11-14 15:32:50
6	Hidden user	0.02 s	C++	2024-02-09 12:15:42
7	Frans Meulenbroeks	0.02 s	C++	2025-02-18 09:06:44
8	พุฒิเศรษฐ์ him him him	0.02 s	C++	2025-03-01 06:33:38
9	Hidden user	0.02 s	C++	2025-04-16 16:45:55
10	Glenn Say	0.02 s	C++	2025-04-24 12:12:44

#	User	Runtime	Language	Date
1	Brent Yorgey	0.56 s	Haskell	2020-11-09 00:40:44
2	Hidden user	0.63 s	Haskell	2023-03-18 22:19:11
3	Alessandro Bruni	0.64 s	Haskell	2020-11-13 17:30:25

#	User	Runtime	Language	Date
1	Clement Oh	0.08 s	Java	2022-09-09 09:29:49
2	Sven Rönnbäck	0.09 s	Java	2023-08-17 20:32:40
3	Crystal Sharpe	0.12 s	Java	2021-03-25 06:07:11
4	DAYEZA MERUDIA CALDERON	0.19 s	Java	2025-09-22 17:10:41
5	Liam Keliher	0.23 s	Java	2024-07-03 21:22:35
6	Lars Corbijn	0.24 s	Java	2021-10-31 15:12:56
7	ADALID JOSUE SARMIENTO APAZA	0.26 s	Java	2025-09-19 13:35:34
8	Ho Lyun Jeong	0.27 s	Java	2021-10-02 22:12:29
9	Raisa Verastegui	0.27 s	Java	2025-09-19 13:46:52
10	Daniel Farfan	0.27 s	Java	2025-09-22 23:56:21

#	User	Runtime	Language	Date
1	Jacob Huebner	0.37 s	Kotlin	2020-12-04 05:57:18

#	User	Runtime	Language	Date
1	José Ignacio de Alvear Cárdenas	0.39 s	Python 2	2020-11-12 14:06:58
2	Andreas Björklund	0.45 s	Python 2	2020-12-26 11:27:06

#	User	Runtime	Language	Date
1	Alexandre Charland	0.08 s	Python 3	2025-02-08 16:11:15
2	Isaac Lee	0.09 s	Python 3	2022-09-27 01:02:54
3	Jefferson Elbert Simões	0.09 s	Python 3	2024-10-11 05:13:23
4	Hrant Hovhannisyan	0.09 s	Python 3	2025-09-01 07:28:31
5	Lineth Lopez Soliz	0.09 s	Python 3	2025-09-21 02:31:04
6	Thomas Li	0.09 s	Python 3	2025-09-29 11:23:24
7	Hussin Suleiman	0.09 s	Python 3	2026-03-06 16:12:00
8	Simon Rumle Tarnow	0.10 s	Python 3	2020-11-13 17:21:59
9	Yi-Min Seah	0.10 s	Python 3	2022-02-06 12:25:13
10	Hidden user	0.10 s	Python 3	2022-10-03 20:10:26

#	User	Runtime	Language	Date
1	Clement Oh	0.19 s	Ruby	2023-11-11 13:11:35

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-08-18 02:52:28
2	Yoeri Otten	0.01 s	Rust	2020-12-13 01:42:59
3	ANDRES MONTAÑO FRIAS	0.01 s	Rust	2025-09-19 13:00:59
4	Jhon Deymar Gutierrez Hinojosa	0.02 s	Rust	2025-09-19 13:53:55

#	User	Length	Language	Date
1	Mirel Cosulschi	1983	C	2023-12-02 21:23:47
2	Bergur Snorrason	2273	C	2020-11-06 10:49:00

#	User	Length	Language	Date
1	Artur Niewiadomski	1301	C#	2020-11-13 16:40:19
2	CRISTIAN JUAN MITA ZEBALLOS	1677	C#	2025-09-22 18:55:16
3	Erik Kristian Gylling	2167	C#	2024-02-21 21:02:44

#	User	Length	Language	Date
1	Frans Meulenbroeks	294	C++	2025-02-18 09:17:21
2	Mathias Gernez	307	C++	2023-04-06 02:46:58
3	Toh Xuan Ning Jeanne	439	C++	2022-01-19 16:53:11
4	Dmitry Lyubshin	599	C++	2023-04-20 03:01:05
5	Rafael Kristoforus Yanto	611	C++	2025-01-03 20:36:22
6	Hidden user	614	C++	2025-04-16 16:45:55
7	Wouter Koolen	661	C++	2024-10-20 16:44:50
8	Ng Yong Xiang	682	C++	2022-01-19 15:16:17
9	Hyunjun Lee	698	C++	2022-10-29 19:52:39
10	Frederick Pek	707	C++	2022-01-17 18:58:23

#	User	Length	Language	Date
1	Alessandro Bruni	592	Haskell	2020-11-13 19:08:09
2	Hidden user	802	Haskell	2023-03-18 22:19:11
3	Brent Yorgey	2701	Haskell	2020-11-09 00:40:44

#	User	Length	Language	Date
1	Joachim Borup	1052	Java	2020-11-14 16:52:15
2	Doug Goodman	1093	Java	2021-02-16 16:55:38
3	Frederik Jacobsen	1106	Java	2020-11-13 18:33:51
4	Danniel Alcantara	1190	Java	2024-02-07 02:33:27
5	Alice Ryhl	1276	Java	2020-11-13 16:52:57
6	Shreyas Jamadagni	1284	Java	2024-10-09 11:27:01
7	Clement Oh	1418	Java	2022-09-09 09:34:02
8	Quang Long Huynh	1429	Java	2021-08-02 08:48:36
9	ADALID JOSUE SARMIENTO APAZA	1470	Java	2025-09-19 13:35:34
10	Sawyer Stanley	1480	Java	2022-10-01 00:32:32

#	User	Length	Language	Date
1	Jacob Huebner	1269	Kotlin	2020-12-04 05:57:18

#	User	Length	Language	Date
1	Andreas Björklund	509	Python 2	2020-12-26 11:27:06
2	José Ignacio de Alvear Cárdenas	2395	Python 2	2020-11-12 14:06:58

#	User	Length	Language	Date
1	Alexandre Charland	176	Python 3	2025-02-08 16:11:15
2	Benjamin Z White	214	Python 3	2023-05-02 00:08:23
3	Hrant Hovhannisyan	305	Python 3	2025-09-01 07:28:31
4	Clement Oh	310	Python 3	2023-11-11 13:13:01
5	Samuel Maltais	318	Python 3	2025-02-08 23:23:30
6	Gustavo Fadel	333	Python 3	2021-12-01 20:30:21
7	Guk Yi Siong	337	Python 3	2024-01-28 06:18:49
8	Hidden user	372	Python 3	2022-01-17 18:55:32
9	Paco Criado	379	Python 3	2024-03-15 00:04:37
10	Oskar Haarklou Veileborg	381	Python 3	2020-11-13 16:16:38

#	User	Length	Language	Date
1	Clement Oh	268	Ruby	2023-11-11 13:11:35

#	User	Length	Language	Date
1	Yoeri Otten	1174	Rust	2020-12-13 01:42:59
2	Jhon Deymar Gutierrez Hinojosa	1392	Rust	2025-09-19 13:53:55
3	ANDRES MONTAÑO FRIAS	1609	Rust	2025-09-21 05:30:11
4	Vincent Lagerros	61891	Rust	2025-08-18 02:52:28

Solution running time distribution