Problem A
Catalan Numbers — Problem Statistics

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Submissions	567
Accepted submissions	298
Submission ratio	52.56%
Authors	116
Full solves [?]	91
Full solve Ratio	78.45%

#	User	Runtime	Language	Date
1	Johannes Svensson	0.00 s	C	2009-11-16 15:42:15
2	Henrik Sjögren	0.02 s	C	2006-12-06 19:05:26
3	Mats Linander	0.02 s	C	2006-12-07 11:49:33

#	User	Runtime	Language	Date
1	John Lindberg	0.03 s	C++	2006-12-06 14:23:17
2	Oscar Sundbom	0.03 s	C++	2006-12-08 03:52:01
3	Per Almquist	0.04 s	C++	2009-11-16 18:48:07
4	Mikael Gerdin	0.04 s	C++	2009-11-22 15:10:36
5	Ollanta Cuba Gyllensten	0.19 s	C++	2009-11-30 07:48:59

#	User	Runtime	Language	Date
1	David Kaméus	0.06 s	Haskell	2022-02-27 18:29:15

#	User	Runtime	Language	Date
1	Hans Gylling	0.37 s	Java	2010-02-05 06:43:28
2	Simon Klein	0.38 s	Java	2011-12-02 18:46:39
3	Fredrik Atmer	0.39 s	Java	2007-11-21 17:14:43
4	Hidden user	0.39 s	Java	2007-11-23 17:21:58
5	Christian Adåker	0.39 s	Java	2007-11-25 23:48:45
6	Jonas Moberg	0.39 s	Java	2008-11-14 13:29:27
7	Mark Bartish	0.39 s	Java	2008-11-29 14:53:29
8	Martin Wendin	0.39 s	Java	2008-12-01 13:57:34
9	Hidden user	0.39 s	Java	2008-12-01 13:58:02
10	Niklas Wanngren	0.39 s	Java	2008-12-04 12:13:03

#	User	Runtime	Language	Date
1	Jonas Emilsson	0.08 s	Python 2	2011-12-02 23:22:00
2	Christopher Mårtensson	0.08 s	Python 2	2015-05-02 23:37:39
3	Urban Pettersson	0.08 s	Python 2	2015-10-12 20:19:17
4	Gustav Sennton	0.09 s	Python 2	2011-12-02 23:32:23
5	Johan Sannemo	0.09 s	Python 2	2012-01-22 14:12:22
6	Fredrik Gustafsson	1.70 s	Python 2	2011-12-12 15:31:43

#	User	Length	Language	Date
1	Henrik Sjögren	3713	C	2006-12-07 00:14:43
2	Mats Linander	3713	C	2006-12-07 11:49:33
3	Johannes Svensson	7532547	C	2009-11-16 15:42:15

#	User	Length	Language	Date
1	John Lindberg	2748	C++	2006-12-06 14:23:17
2	Oscar Sundbom	2888	C++	2006-12-08 03:52:01
3	Ollanta Cuba Gyllensten	8649	C++	2009-11-27 19:05:50
4	Per Almquist	10712	C++	2009-11-16 20:54:15
5	Mikael Gerdin	13952	C++	2009-11-22 15:10:36

#	User	Length	Language	Date
1	David Kaméus	216	Haskell	2022-02-27 18:29:15

#	User	Length	Language	Date
1	Ulf Lundström	602	Java	2006-12-05 21:30:23
2	Elias Freider	616	Java	2006-12-05 21:56:30
3	Hidden user	634	Java	2011-05-17 10:21:25
4	Oskar Werkelin Ahlin	746	Java	2011-05-11 17:38:58
5	Bjarki Ágúst Guðmundsson	820	Java	2014-01-04 12:55:23
6	David Schlyter	873	Java	2008-12-02 22:45:01
7	Hidden user	887	Java	2008-10-03 16:34:31
8	Hidden user	897	Java	2008-11-20 15:03:34
9	Håkan Terelius	913	Java	2007-01-16 15:34:37
10	Daniel Bernstein	934	Java	2012-09-22 15:56:33

#	User	Length	Language	Date
1	Johan Sannemo	161	Python 2	2012-01-22 14:12:22
2	Jonas Emilsson	185	Python 2	2011-12-03 08:10:21
3	Christopher Mårtensson	200	Python 2	2015-05-02 23:37:39
4	Urban Pettersson	257	Python 2	2015-10-12 20:19:17
5	Gustav Sennton	275	Python 2	2011-12-02 17:26:53
6	Fredrik Gustafsson	358	Python 2	2011-12-12 15:31:43

Solution running time distribution