Problem A
Knights in Fen — Problem Statistics

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Submissions	1563
Accepted submissions	478
Submission ratio	30.58%
Authors	249
Accepted authors	220
Author ratio	88.35%

#	User	Runtime	Language	Date
1	Per Olofsson	0.00 s	C	2011-10-13 11:26:25
2	Mats Linander	0.01 s	C	2006-10-02 00:02:19
3	Hidden user	0.02 s	C	2011-02-16 21:17:07
4	Henrik Sjögren	0.03 s	C	2006-09-27 12:43:51
5	Marcus Larsson	0.03 s	C	2013-03-20 08:21:54
6	Oscar Cusin	0.31 s	C	2024-04-21 12:57:39

#	User	Runtime	Language	Date
1	Per Wennersten	0.06 s	Java	2006-09-25 22:25:50
2	Fredrik Atmer	0.07 s	Java	2007-09-25 22:19:19
3	Simon Klein	0.07 s	Java	2012-01-23 14:44:21
4	Kai Widell Niigata	0.08 s	Java	2014-04-02 16:40:25
5	Hidden user	0.09 s	Java	2007-09-26 21:48:41
6	Martin Berntsson	0.09 s	Java	2013-03-21 18:39:32
7	Erik Odenman	0.09 s	Java	2013-04-02 18:41:28
8	Anders Ye	0.09 s	Java	2014-04-02 14:08:26
9	Hidden user	0.10 s	Java	2011-02-17 01:42:24
10	Hidden user	0.10 s	Java	2011-02-17 15:46:38

#	User	Runtime	Language	Date
1	Andreas Serra	0.08 s	Python 2	2014-01-16 19:15:35

#	User	Runtime	Language	Date
1	Andy Li	0.09 s	Python 3	2025-04-07 15:57:25
2	Karl Walfridson	0.15 s	Python 3	2025-04-14 17:24:31
3	Alix Menard	0.17 s	Python 3	2024-04-13 21:54:49
4	Robert Welin-Berger	0.22 s	Python 3	2018-01-13 11:53:10
5	Oskar Svanström	0.22 s	Python 3	2023-04-24 15:56:28
6	Jacob Molin	0.27 s	Python 3	2025-04-10 21:03:24
7	Andreas Wallström	0.33 s	Python 3	2020-11-15 14:10:51

#	User	Runtime	Language	Date
1	Gustaf Bergmark	0.00 s	Rust	2023-04-20 21:45:49
2	Vincent Lagerros	0.00 s	Rust	2024-04-10 20:47:18
3	Rasmus Andersson	0.05 s	Rust	2024-04-22 17:34:29
4	Christoffer Andersson	0.17 s	Rust	2024-04-20 12:28:30

#	User	Length	Language	Date
1	Oscar Cusin	1949	C	2024-04-21 12:59:22
2	Per Olofsson	2164	C	2011-10-03 18:35:47
3	Mats Linander	2431	C	2006-10-02 00:02:19
4	Henrik Sjögren	2971	C	2006-09-27 12:27:04
5	Marcus Larsson	4379	C	2013-03-20 08:21:54
6	Hidden user	6856	C	2011-02-16 21:17:07

#	User	Length	Language	Date
1	Emil Lenngren	1347	C++	2013-04-10 14:14:49
2	Jari Kemi	1776	C++	2011-02-16 14:06:51
3	David Vega	1825	C++	2017-11-07 15:00:50
4	Hidden user	1831	C++	2020-11-11 01:09:49
5	Rohin Mohanadas	1854	C++	2017-11-04 11:11:55
6	Henrik Ygge	1887	C++	2006-09-25 20:16:43
7	Matilde Dolores Pires Neves	1932	C++	2025-04-08 18:45:42
8	Per Olofsson	1977	C++	2011-10-03 18:16:29
9	David Avellan-Hultman	1986	C++	2020-11-16 12:59:55
10	Ouday Ahmed	2078	C++	2024-04-17 12:12:53

#	User	Length	Language	Date
1	Fredrik Atmer	2703	Java	2007-09-25 23:37:12
2	Rached Toukko	2812	Java	2024-04-16 09:38:47
3	Simon Klein	2856	Java	2012-01-23 14:52:17
4	Per Eriksson	3069	Java	2009-10-01 18:03:54
5	Jonas Frogvall	3269	Java	2005-10-14 12:09:27
6	Erik Odenman	3415	Java	2013-04-02 18:41:28
7	Hanif Farahmand Mokarremi	3461	Java	2011-10-05 13:58:18
8	Per Wennersten	3462	Java	2006-09-25 22:25:50
9	Fredrik Eriksson	3707	Java	2011-02-26 15:46:31
10	Linus Tufvesson	3964	Java	2009-09-29 00:55:31

#	User	Length	Language	Date
1	Andreas Serra	3571	Python 2	2014-01-16 13:05:35

#	User	Length	Language	Date
1	Karl Walfridson	660	Python 3	2025-04-13 17:48:01
2	Jacob Molin	1178	Python 3	2025-04-10 21:03:24
3	Alix Menard	1231	Python 3	2024-04-13 21:54:49
4	Robert Welin-Berger	1503	Python 3	2018-01-13 11:53:10
5	Andy Li	1582	Python 3	2025-04-07 15:54:25
6	Oskar Svanström	1853	Python 3	2023-04-24 15:56:28
7	Andreas Wallström	1960	Python 3	2020-11-15 14:10:51

#	User	Length	Language	Date
1	Christoffer Andersson	2700	Rust	2024-04-20 12:28:59
2	Rasmus Andersson	2811	Rust	2024-04-22 17:34:29
3	Vincent Lagerros	3786	Rust	2024-04-10 20:47:18
4	Gustaf Bergmark	8361	Rust	2023-04-20 21:45:49

Solution running time distribution