Problem I
Vanishing Parentheses

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Problem statistics

Submissions	185
Accepted submissions	79
Submission ratio	42.70%
Authors	78
Accepted authors	62
Author ratio	79.49%

#	User	Runtime	Date
1	Timon Knigge	0.01 s	2016-05-28 15:03:26
2	Josenildo Silva	0.01 s	2017-04-14 21:29:14
3	Per Persson	0.01 s	2017-05-31 08:50:39
4	traxex	0.01 s	2018-04-15 11:03:21
5	Jannik Olbrich	0.01 s	2019-03-09 17:51:00
6	Max Dublenko	0.01 s	2019-10-24 03:52:09
7	Cong Vu Ba	0.01 s	2020-10-06 11:01:24
8	Erik Amirell Eklöf	0.01 s	2021-11-10 19:59:52
9	Devin Qu	0.01 s	2022-09-13 03:32:26
10	Egor Gagushin	0.01 s	2022-09-17 00:32:54

#	User	Runtime	Date
1	Frank Endriss	0.12 s	2021-12-27 19:59:38

#	User	Runtime	Date
1	Md Akif Chowdhury	0.14 s	2023-06-16 19:29:09
2	Brent Yorgey	0.20 s	2020-11-11 14:37:28

#	User	Runtime	Date
1	William Fiset	0.16 s	2017-04-09 03:29:01
2	Martijn Muijsers	0.17 s	2017-05-16 13:15:38
3	Nick Wu	0.18 s	2016-06-16 09:13:07
4	Micah Stairs	0.19 s	2017-01-10 06:29:08
5	Finn Lidbetter	0.26 s	2017-08-12 16:02:16
6	Sander van Schouwenburg	0.27 s	2017-10-17 23:52:10
7	Doug Goodman	0.35 s	2018-06-10 16:48:46
8	Joachim Nybo	0.40 s	2016-05-31 14:30:43
9	Naing Win Tun	0.41 s	2018-08-04 15:01:02
10	Gaurav Arora	0.42 s	2019-10-16 22:06:16

#	User	Runtime	Date
1	Michael Laszlo	0.13 s	2016-09-28 21:06:29

#	User	Runtime	Date
1	Michael Laszlo	0.07 s	2016-09-28 20:25:25
2	Måns Magnusson	0.12 s	2018-04-02 23:22:05
3	Svend Christian Svendsen	0.15 s	2017-12-23 15:17:59

#	User	Runtime	Date
1	John Barczynski	0.06 s	2018-01-24 05:27:58
2	Måns Magnusson	0.06 s	2018-04-02 23:24:21
3	Casper Rysgaard	0.16 s	2021-03-23 20:50:23
4	Linh B. Ngo	0.16 s	2024-04-19 23:34:12
5	Bjarki Ágúst Guðmundsson	0.38 s	2015-04-23 02:22:13
6	Leo Gao	0.40 s	2019-10-20 23:54:21
7	Oskar Haarklou Veileborg	0.50 s	2021-09-09 11:10:30
8	Johnricky Alba Espinosa	0.71 s	2022-10-15 23:34:15
9	Matthew McCaskill	0.97 s	2021-03-23 20:37:34

#	User	Runtime	Date
1	Hidden user	0.15 s	2024-05-10 09:29:25

#	User	Length	Date
1	Nathaniel Ang	908	2020-05-21 19:11:29
2	Ninghui Li	1076	2022-09-09 15:15:27
3	Atli Fannar Franklín	1084	2023-06-22 14:18:02
4	Jannik Olbrich	1114	2019-03-09 17:51:00
5	Hidden user	1134	2021-02-25 16:16:25
6	Josenildo Silva	1216	2017-04-14 21:29:14
7	Cyril Sharma	1263	2022-09-15 20:26:29
8	Johan Wind	1387	2018-09-19 02:27:25
9	Erik Amirell Eklöf	1403	2021-11-10 19:59:52
10	Pierre T.	1463	2022-10-13 21:57:20

#	User	Length	Date
1	Frank Endriss	3159	2021-12-27 19:59:38

#	User	Length	Date
1	Md Akif Chowdhury	1058	2023-06-16 19:29:09
2	Brent Yorgey	2547	2020-11-11 14:37:28

#	User	Length	Date
1	Doug Goodman	1382	2018-06-10 16:48:46
2	Stephen Atwood	1482	2016-10-24 00:29:46
3	Micah Stairs	1705	2017-01-10 06:29:08
4	Finn Lidbetter	2093	2017-08-12 16:02:16
5	Martijn Muijsers	2318	2017-05-16 13:15:38
6	Gaurav Arora	2351	2019-10-16 22:06:16
7	Sander van Schouwenburg	2476	2017-10-17 23:52:10
8	Nick Wu	2981	2016-06-16 09:13:07
9	Joachim Nybo	3053	2016-05-31 14:27:17
10	Naing Win Tun	3586	2018-08-04 15:01:02

#	User	Length	Date
1	Michael Laszlo	1529	2016-09-28 21:06:29

#	User	Length	Date
1	Svend Christian Svendsen	801	2017-12-23 15:15:15
2	Måns Magnusson	841	2018-04-02 23:22:05
3	Michael Laszlo	1106	2016-09-28 20:25:25

#	User	Length	Date
1	Bjarki Ágúst Guðmundsson	784	2015-04-23 02:22:13
2	Matthew McCaskill	811	2021-03-24 16:22:01
3	Måns Magnusson	841	2018-04-02 23:24:21
4	Leo Gao	846	2019-10-20 23:54:21
5	Oskar Haarklou Veileborg	1014	2021-09-09 11:10:30
6	Casper Rysgaard	1066	2021-03-23 20:50:23
7	Johnricky Alba Espinosa	1182	2022-10-15 23:34:15
8	Linh B. Ngo	1447	2024-04-19 23:34:12
9	John Barczynski	1643	2018-01-24 05:27:58

#	User	Length	Date
1	Hidden user	1035	2024-05-10 09:29:25

Solution running time distribution