Problem A
Bracket Sequence — Problem Statistics

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Submissions	1468
Accepted submissions	427
Submission ratio	29.09%
Authors	369
Full solves [?]	295
Full solve Ratio	79.95%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2020-11-06 09:49:00
2	Mirel Cosulschi	0.03 s	C	2023-12-02 20:23:47

#	User	Runtime	Language	Date
1	CRISTIAN JUAN MITA ZEBALLOS	0.14 s	C#	2025-09-22 16:55:16
2	Artur Niewiadomski	0.16 s	C#	2020-11-13 15:40:19
3	Erik Kristian Gylling	0.20 s	C#	2024-02-21 20:02:44

#	User	Runtime	Language	Date
1	Tomas Lagland	0.01 s	C++	2020-11-08 21:48:10
2	Andree Stef	0.01 s	C++	2022-04-23 11:33:52
3	Lyubomir Savekov	0.02 s	C++	2022-09-19 11:56:13
4	Hyunjun Lee	0.02 s	C++	2022-10-29 17:52:39
5	Hasan Mubarok	0.02 s	C++	2023-11-14 14:32:50
6	Hidden user	0.02 s	C++	2024-02-09 11:15:42
7	Frans Meulenbroeks	0.02 s	C++	2025-02-18 08:06:44
8	พุฒิเศรษฐ์ him him him	0.02 s	C++	2025-03-01 05:33:38
9	Yeoh Han Yi	0.02 s	C++	2025-04-16 14:45:55
10	Glenn Say	0.02 s	C++	2025-04-24 10:12:44

#	User	Runtime	Language	Date
1	Brent Yorgey	0.56 s	Haskell	2020-11-08 23:40:44
2	Hidden user	0.63 s	Haskell	2023-03-18 21:19:11
3	Alessandro Bruni	0.64 s	Haskell	2020-11-13 16:30:25

#	User	Runtime	Language	Date
1	Clement Oh	0.08 s	Java	2022-09-09 07:29:49
2	Sven Rönnbäck	0.09 s	Java	2023-08-17 18:32:40
3	Crystal Sharpe	0.12 s	Java	2021-03-25 05:07:11
4	DAYEZA MERUDIA CALDERON	0.19 s	Java	2025-09-22 15:10:41
5	Liam Keliher	0.23 s	Java	2024-07-03 19:22:35
6	Lars Corbijn	0.24 s	Java	2021-10-31 14:12:56
7	ADALID JOSUE SARMIENTO APAZA	0.26 s	Java	2025-09-19 11:35:34
8	Ho Lyun Jeong	0.27 s	Java	2021-10-02 20:12:29
9	Raisa Verastegui	0.27 s	Java	2025-09-19 11:46:52
10	Daniel Farfan	0.27 s	Java	2025-09-22 21:56:21

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

#	User	Runtime	Language	Date
1	José Ignacio de Alvear Cárdenas	0.39 s	Python 2	2020-11-12 13:06:58
2	Andreas Björklund	0.45 s	Python 2	2020-12-26 10:27:06

#	User	Runtime	Language	Date
1	Alexandre Charland	0.08 s	Python 3	2025-02-08 15:11:15
2	Isaac Lee	0.09 s	Python 3	2022-09-26 23:02:54
3	Jefferson Elbert Simões	0.09 s	Python 3	2024-10-11 03:13:23
4	Hrant Hovhannisyan	0.09 s	Python 3	2025-09-01 05:28:31
5	Lineth Lopez Soliz	0.09 s	Python 3	2025-09-21 00:31:04
6	Thomas Li	0.09 s	Python 3	2025-09-29 09:23:24
7	Simon Rumle Tarnow	0.10 s	Python 3	2020-11-13 16:21:59
8	Yi-Min Seah	0.10 s	Python 3	2022-02-06 11:25:13
9	Hidden user	0.10 s	Python 3	2022-10-03 18:10:26
10	Alejandro Escobar	0.10 s	Python 3	2023-03-22 23:52:27

#	User	Runtime	Language	Date
1	Clement Oh	0.19 s	Ruby	2023-11-11 12:11:35

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-08-18 00:52:28
2	Yoeri Otten	0.01 s	Rust	2020-12-13 00:42:59
3	ANDRES MONTAÑO FRIAS	0.01 s	Rust	2025-09-19 11:00:59
4	Jhon Deymar Gutierrez Hinojosa	0.02 s	Rust	2025-09-19 11:53:55

#	User	Length	Language	Date
1	Mirel Cosulschi	1983	C	2023-12-02 20:23:47
2	Bergur Snorrason	2273	C	2020-11-06 09:49:00

#	User	Length	Language	Date
1	Artur Niewiadomski	1301	C#	2020-11-13 15:40:19
2	CRISTIAN JUAN MITA ZEBALLOS	1677	C#	2025-09-22 16:55:16
3	Erik Kristian Gylling	2167	C#	2024-02-21 20:02:44

#	User	Length	Language	Date
1	Frans Meulenbroeks	294	C++	2025-02-18 08:17:21
2	Mathias Gernez	307	C++	2023-04-06 00:46:58
3	Toh Xuan Ning Jeanne	439	C++	2022-01-19 15:53:11
4	Dmitry Lyubshin	599	C++	2023-04-20 01:01:05
5	Rafael Kristoforus Yanto	611	C++	2025-01-03 19:36:22
6	Yeoh Han Yi	614	C++	2025-04-16 14:45:55
7	Wouter Koolen	661	C++	2024-10-20 14:44:50
8	Ng Yong Xiang	682	C++	2022-01-19 14:16:17
9	Hyunjun Lee	698	C++	2022-10-29 17:52:39
10	Frederick Pek	707	C++	2022-01-17 17:58:23

#	User	Length	Language	Date
1	Alessandro Bruni	592	Haskell	2020-11-13 18:08:09
2	Hidden user	802	Haskell	2023-03-18 21:19:11
3	Brent Yorgey	2701	Haskell	2020-11-08 23:40:44

#	User	Length	Language	Date
1	Joachim Borup	1052	Java	2020-11-14 15:52:15
2	Doug Goodman	1093	Java	2021-02-16 15:55:38
3	Frederik Jacobsen	1106	Java	2020-11-13 17:33:51
4	Danniel Alcantara	1190	Java	2024-02-07 01:33:27
5	Alice Ryhl	1276	Java	2020-11-13 15:52:57
6	Shreyas Jamadagni	1284	Java	2024-10-09 09:27:01
7	Clement Oh	1418	Java	2022-09-09 07:34:02
8	Quang Long Huynh	1429	Java	2021-08-02 06:48:36
9	ADALID JOSUE SARMIENTO APAZA	1470	Java	2025-09-19 11:35:34
10	Sawyer Stanley	1480	Java	2022-09-30 22:32:32

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

#	User	Length	Language	Date
1	Andreas Björklund	509	Python 2	2020-12-26 10:27:06
2	José Ignacio de Alvear Cárdenas	2395	Python 2	2020-11-12 13:06:58

#	User	Length	Language	Date
1	Alexandre Charland	176	Python 3	2025-02-08 15:11:15
2	Benjamin Z White	214	Python 3	2023-05-01 22:08:23
3	Hrant Hovhannisyan	305	Python 3	2025-09-01 05:28:31
4	Clement Oh	310	Python 3	2023-11-11 12:13:01
5	Samuel Maltais	318	Python 3	2025-02-08 22:23:30
6	Gustavo Fadel	333	Python 3	2021-12-01 19:30:21
7	Guk Yi Siong	337	Python 3	2024-01-28 05:18:49
8	Hidden user	372	Python 3	2022-01-17 17:55:32
9	Paco Criado	379	Python 3	2024-03-14 23:04:37
10	Oskar Haarklou Veileborg	381	Python 3	2020-11-13 15:16:38

#	User	Length	Language	Date
1	Clement Oh	268	Ruby	2023-11-11 12:11:35

#	User	Length	Language	Date
1	Yoeri Otten	1174	Rust	2020-12-13 00:42:59
2	Jhon Deymar Gutierrez Hinojosa	1392	Rust	2025-09-19 11:53:55
3	ANDRES MONTAÑO FRIAS	1609	Rust	2025-09-21 03:30:11
4	Vincent Lagerros	61891	Rust	2025-08-18 00:52:28

Solution running time distribution