Problem K
Keeping the Dogs Apart — Problem Statistics

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Submissions	1020
Accepted submissions	289
Submission ratio	28.33%
Authors	231
Full solves [?]	185
Full solve Ratio	80.09%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.05 s	C	2019-05-28 06:37:45
2	David Brickeen	0.37 s	C	2016-10-25 00:21:25

#	User	Runtime	Language	Date
1	Andreas Jørgensen	0.17 s	C#	2025-08-10 16:32:18

#	User	Runtime	Language	Date
1	Robert Chung	0.03 s	C++	2024-10-09 00:04:56
2	Yanan Wang	0.04 s	C++	2016-10-13 08:20:10
3	Joakim Blikstad	0.05 s	C++	2016-10-13 01:52:14
4	Asado Familiar	0.05 s	C++	2016-11-11 13:03:39
5	敬林晓	0.05 s	C++	2017-10-03 12:59:10
6	Augusto Bernardi	0.05 s	C++	2018-03-21 04:32:28
7	Hidden user	0.05 s	C++	2018-03-21 04:32:51
8	Dmitry Lyubshin	0.05 s	C++	2018-06-25 08:23:29
9	Pablo Alfredo Messina Gallardo	0.05 s	C++	2018-08-08 18:49:23
10	Jonathan Alexander Carrillo Cortes	0.05 s	C++	2020-03-09 04:12:24

#	User	Runtime	Language	Date
1	Hidden user	0.13 s	D	2025-08-11 05:49:52

#	User	Runtime	Language	Date
1	Ryan Yates	1.07 s	Haskell	2020-07-13 22:40:47

#	User	Runtime	Language	Date
1	Arup Ratan Guha	0.35 s	Java	2017-05-11 11:05:02
2	James Black	0.36 s	Java	2018-06-23 18:12:40
3	David Brink	0.37 s	Java	2016-10-15 16:54:52
4	Andrew Polizzotto	0.39 s	Java	2021-01-13 22:26:28
5	Satvik Choudhary	0.40 s	Java	2020-09-01 22:40:37
6	Shirui Chen	0.50 s	Java	2017-10-25 18:52:09
7	Benjamin Reidys	0.50 s	Java	2019-07-31 00:25:34
8	Timothy Buzzelli	0.59 s	Java	2016-10-22 22:37:04
9	Alex Coleman	0.59 s	Java	2017-03-02 18:43:46
10	Jørund Leknes	0.62 s	Java	2016-10-11 14:47:18

#	User	Runtime	Language	Date
1	Aslak Bergersen	0.23 s	Python 2	2016-10-09 12:06:49
2	Jesper Öqvist	0.25 s	Python 2	2018-04-25 11:12:48
3	Freek van Walderveen	0.31 s	Python 2	2016-10-08 13:57:43
4	Andreas Björklund	0.31 s	Python 2	2019-03-20 18:36:07
5	Matias Frank Jensen	0.40 s	Python 2	2019-10-06 15:09:01
6	Maj Stenmark	0.41 s	Python 2	2018-05-04 21:06:35
7	Li Shuo	0.78 s	Python 2	2022-03-28 00:41:09
8	Hidden user	2.11 s	Python 2	2016-10-11 18:20:08

#	User	Runtime	Language	Date
1	Alexandre Charland	0.26 s	Python 3	2025-05-21 02:07:55
2	Thomas Lacasse	0.34 s	Python 3	2025-05-25 14:43:38
3	Hidden user	0.36 s	Python 3	2025-11-24 14:21:33
4	Godmar Back	0.37 s	Python 3	2022-09-12 03:58:42
5	Zak Smith	0.50 s	Python 3	2020-09-13 16:04:19
6	Glen Lim	0.60 s	Python 3	2020-09-13 16:08:12
7	Paul Swingle	0.84 s	Python 3	2022-11-15 04:55:16
8	Ole Vik Lysne	0.93 s	Python 3	2026-01-06 22:37:24
9	Fredrik Niemelä	1.10 s	Python 3	2025-08-11 05:12:39
10	Rafael Sheen Acuna	1.30 s	Python 3	2025-07-05 08:47:46

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2026-02-12 00:13:32
2	Niklas Sandén	0.04 s	Rust	2022-10-06 21:04:32
3	Hidden user	0.19 s	Rust	2025-06-21 12:06:50

#	User	Length	Language	Date
1	Ivan Petrov	2302	C	2019-05-28 06:37:45
2	David Brickeen	2561	C	2016-10-25 00:21:25

#	User	Length	Language	Date
1	Andreas Jørgensen	3903	C#	2025-08-10 16:32:18

#	User	Length	Language	Date
1	Arthur Costa	1325	C++	2017-03-09 12:19:56
2	Joakim Blikstad	1342	C++	2016-10-13 01:51:07
3	Hidden user	1342	C++	2017-03-09 17:35:37
4	Gerth Stølting Brodal	1355	C++	2016-10-11 19:43:45
5	Johan Wind	1386	C++	2018-05-15 01:01:29
6	Mikko Sysikaski	1497	C++	2016-10-08 12:11:17
7	Elias Lolck	1556	C++	2022-10-02 21:11:14
8	Neal Zane	1566	C++	2018-04-27 03:55:59
9	Victor Lecomte	1606	C++	2018-04-23 13:27:57
10	Atli Fannar Franklín	1647	C++	2023-07-07 08:15:45

#	User	Length	Language	Date
1	Hidden user	2153	D	2025-08-11 05:49:52

#	User	Length	Language	Date
1	Ryan Yates	1878	Haskell	2020-07-13 22:40:47

#	User	Length	Language	Date
1	Doug Goodman	1693	Java	2018-01-21 18:48:47
2	Xuehui Chen	2699	Java	2018-07-11 04:37:06
3	Reid Sendroff	3037	Java	2025-07-31 20:24:46
4	James Black	3619	Java	2018-06-23 18:12:40
5	Andrew Polizzotto	3687	Java	2021-01-13 22:26:28
6	Måns Magnusson	3988	Java	2016-10-09 17:35:45
7	Hidden user	4022	Java	2017-02-12 04:59:44
8	Alex Coleman	4100	Java	2017-03-02 18:43:46
9	Satvik Choudhary	4116	Java	2020-09-01 22:40:37
10	Jørund Leknes	4172	Java	2016-10-11 14:47:18

#	User	Length	Language	Date
1	Li Shuo	1145	Python 2	2022-03-28 00:41:09
2	Andreas Björklund	1362	Python 2	2019-03-20 18:36:07
3	Freek van Walderveen	1921	Python 2	2016-10-08 13:57:43
4	Maj Stenmark	1994	Python 2	2018-05-04 21:06:35
5	Hidden user	2022	Python 2	2016-10-11 18:24:21
6	Matias Frank Jensen	2331	Python 2	2019-10-06 15:09:01
7	Jesper Öqvist	2528	Python 2	2018-04-25 11:12:48
8	Aslak Bergersen	3363	Python 2	2016-10-09 12:06:49

#	User	Length	Language	Date
1	Nic Washbourne	803	Python 3	2023-11-12 03:55:29
2	Alexandre Charland	926	Python 3	2025-05-21 02:07:55
3	Xuehui Chen	974	Python 3	2018-07-11 04:01:55
4	Josenildo Silva	1004	Python 3	2018-06-23 00:42:05
5	Inggriany Dwitami	1050	Python 3	2018-09-22 07:41:14
6	Ole Vik Lysne	1173	Python 3	2026-01-06 22:37:24
7	Rafael Sheen Acuna	1298	Python 3	2025-07-05 08:47:46
8	Godmar Back	1376	Python 3	2022-09-12 03:58:42
9	Zak Smith	1643	Python 3	2020-09-13 16:04:19
10	Yosuke Mizutani	1892	Python 3	2020-09-10 05:07:32

#	User	Length	Language	Date
1	Hidden user	12322	Rust	2025-06-21 12:06:50
2	Niklas Sandén	23085	Rust	2022-10-06 21:04:32
3	Vincent Lagerros	100387	Rust	2026-02-12 00:13:32

Solution running time distribution