Problem A
The Owl and the Fox — Problem Statistics

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Submissions	3931
Accepted submissions	2173
Submission ratio	55.28%
Authors	1783
Full solves [?]	1663
Full solve Ratio	93.27%

#	User	Runtime	Language	Date
1	Danny Robinson	0.11 s	Bash	2023-09-09 21:41:26
2	Chenzhang Hu	0.47 s	Bash	2023-12-18 16:31:48

#	User	Runtime	Language	Date
1	Christian Lindeström	0.00 s	C	2016-12-06 20:05:41
2	Bergur Snorrason	0.00 s	C	2019-07-11 22:51:39
3	Wayne	0.01 s	C	2016-12-18 21:13:03
4	Jón Steinn Elíasson	0.01 s	C	2017-06-27 17:08:08
5	Nguyen Phuoc Bao Hoang	0.01 s	C	2017-08-07 07:27:33
6	Kristiyan Balabanov	0.01 s	C	2018-04-12 11:41:28
7	West Castro	0.01 s	C	2018-08-26 04:47:17
8	Thai Doan	0.01 s	C	2019-02-14 03:31:07
9	Ivan Petrov	0.01 s	C	2019-09-02 10:31:51
10	Eyleifur Bjarkason	0.01 s	C	2019-09-13 19:19:32

#	User	Runtime	Language	Date
1	Johan Pettersson	0.07 s	C#	2018-04-15 19:04:31
2	Matilda V Mjd	0.11 s	C#	2018-10-09 13:00:09
3	Andreas Ljungberg	0.18 s	C#	2017-12-13 19:10:02
4	traxex	0.19 s	C#	2024-05-16 19:13:05
5	Faisal Rahman	0.20 s	C#	2018-05-17 11:54:36
6	Henrik Hallbert	0.20 s	C#	2020-10-03 20:38:01
7	Khin Nyunt	0.28 s	C#	2017-11-07 06:34:35
8	Joseph Pugliano	0.29 s	C#	2017-06-21 18:26:02
9	Anders Høy Seemann Vestergaard	0.29 s	C#	2018-10-02 23:14:38
10	Rasmus Brants	0.30 s	C#	2017-04-30 19:17:07

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	C++	2016-12-07 19:50:13
2	Maciej Goszczycki	0.00 s	C++	2017-10-16 09:21:54
3	Grae Yeandle	0.01 s	C++	2016-12-24 13:16:59
4	Naufal Aziz	0.01 s	C++	2017-01-19 03:16:00
5	Inez Zahra Nabila	0.01 s	C++	2017-01-19 11:36:14
6	Erallesa Putra Sandeni	0.01 s	C++	2017-01-20 10:21:41
7	Manu Lam	0.01 s	C++	2017-12-19 20:29:31
8	Antoni Guz	0.01 s	C++	2018-02-18 15:17:22
9	Vincent Lin	0.01 s	C++	2018-03-01 12:11:33
10	Daniel Agatan	0.01 s	C++	2018-03-02 13:22:09

#	User	Runtime	Language	Date
1	Hidden user	0.27 s	Common Lisp	2019-05-26 03:47:57

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.10 s	F#	2022-09-20 18:41:00

#	User	Runtime	Language	Date
1	Magix	0.06 s	Go	2020-09-14 18:35:56
2	Norbert Voelker	0.41 s	Go	2021-04-21 17:45:57

#	User	Runtime	Language	Date
1	Jan Hlavacek	0.04 s	Haskell	2017-02-15 05:25:23
2	Antony Lee	0.04 s	Haskell	2017-07-22 12:35:03
3	Brent Yorgey	0.04 s	Haskell	2017-12-21 04:10:38
4	Matthew Johnson	0.04 s	Haskell	2018-03-09 02:53:50
5	Øyvind Almli	0.04 s	Haskell	2021-09-21 16:03:01
6	Steinar Simonnes	0.06 s	Haskell	2024-02-04 15:36:52
7	Caleb Surovik	0.08 s	Haskell	2021-07-09 19:29:14
8	Håkon Flatval	0.16 s	Haskell	2018-08-30 16:42:37
9	Martin Jackson	0.17 s	Haskell	2017-05-18 00:09:20
10	Joey Chan	0.17 s	Haskell	2017-09-08 03:38:43

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.08 s	Java	2022-04-05 20:06:54
2	Samuel Klingström	0.12 s	Java	2017-05-12 14:08:30
3	José Vander Meulen	0.15 s	Java	2018-11-11 21:39:55
4	James Black	0.17 s	Java	2018-04-13 19:21:40
5	Liam Keliher	0.17 s	Java	2018-06-12 22:10:33
6	Finn Lidbetter	0.18 s	Java	2018-02-27 15:21:00
7	Micah Stairs	0.20 s	Java	2016-12-14 02:29:02
8	Love Engman	0.20 s	Java	2017-01-12 14:10:58
9	Julius Griebel	0.20 s	Java	2024-05-13 20:41:00
10	Michael Sullivan	0.22 s	Java	2017-10-19 21:15:32

#	User	Runtime	Language	Date
1	Chris Wong	0.48 s	JavaScript (Node.js)	2021-02-16 23:16:26
2	Hidden user	0.57 s	JavaScript (Node.js)	2024-11-10 22:54:48
3	Andoko Chandra	0.75 s	JavaScript (Node.js)	2020-10-09 12:29:39

#	User	Runtime	Language	Date
1	Peter Menyes	0.06 s	JavaScript (SpiderMonkey)	2021-08-22 22:16:40
2	Spencer Smith	0.09 s	JavaScript (SpiderMonkey)	2017-06-09 17:12:11
3	Zach Tschetter	0.09 s	JavaScript (SpiderMonkey)	2023-06-05 00:25:44
4	Bjørn Chr. Soltvedt	0.18 s	JavaScript (SpiderMonkey)	2016-12-09 10:02:09
5	Peter Kedemo	0.21 s	JavaScript (SpiderMonkey)	2017-06-08 23:02:21
6	Christian Cederquist	0.21 s	JavaScript (SpiderMonkey)	2023-01-13 15:05:09
7	Jimmy Gustafsson	0.21 s	JavaScript (SpiderMonkey)	2024-07-15 22:06:43
8	Casey Smith	0.39 s	JavaScript (SpiderMonkey)	2019-05-23 21:18:18
9	Emanuel Pilz	0.50 s	JavaScript (SpiderMonkey)	2023-04-13 20:22:21

#	User	Runtime	Language	Date
1	Troy Warmboe	0.69 s	Kotlin	2023-04-11 23:06:43
2	Adam Rankin	0.75 s	Kotlin	2023-05-02 05:56:27
3	Ola Sundell	0.81 s	Kotlin	2019-11-18 12:42:15
4	Jahid Hasan Imon	0.82 s	Kotlin	2020-05-25 21:31:44
5	Neil Harmon	0.83 s	Kotlin	2019-04-19 15:28:08
6	Dayan Ruben Gonzalez	0.83 s	Kotlin	2020-10-08 02:48:43
7	Willson Wijaya	0.85 s	Kotlin	2020-10-01 07:06:56
8	Sarek Høverstad Skotåm	0.91 s	Kotlin	2021-06-06 07:16:19
9	Ali M. Nekoh	0.97 s	Kotlin	2025-05-08 19:57:04
10	Einar Kjellback	1.00 s	Kotlin	2019-12-13 22:03:08

#	User	Runtime	Language	Date
1	Sebastian Banert	0.15 s	OCaml	2024-09-02 08:00:56

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.02 s	Pascal	2019-06-04 11:06:46

#	User	Runtime	Language	Date
1	Jonas Lindenskov Nielsen	0.51 s	PHP	2019-11-10 23:57:31

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.30 s	Prolog	2023-02-13 21:01:35
2	Andriy Zyevakov	0.69 s	Prolog	2019-04-26 18:50:42

#	User	Runtime	Language	Date
1	Andrei Stoica	0.05 s	Python 2	2018-05-21 23:10:11
2	Mark Kaius Helenurm	0.08 s	Python 2	2018-09-04 17:00:10
3	Thomas Vu	0.08 s	Python 2	2019-02-08 06:18:50
4	Christofer Ohlsson	0.09 s	Python 2	2016-12-07 10:40:56
5	Hidden user	0.09 s	Python 2	2018-04-06 16:52:49
6	Yanmarshus Bachtiar	0.10 s	Python 2	2020-08-29 06:15:47
7	Francesco Silvestri	0.12 s	Python 2	2018-11-26 00:14:03
8	Gibransyah	0.13 s	Python 2	2020-09-25 05:46:21
9	Justin Su	0.14 s	Python 2	2017-09-24 22:30:28
10	Cheng Hang	0.14 s	Python 2	2017-12-09 10:49:11

#	User	Runtime	Language	Date
1	Petr	0.07 s	Python 3	2022-06-10 23:53:14
2	Yuting Xiao	0.07 s	Python 3	2025-04-11 02:29:45
3	Shariq Anwar	0.08 s	Python 3	2023-09-26 22:00:09
4	Dagur Máni Guðmundsson	0.08 s	Python 3	2023-11-22 00:03:56
5	Abuzar Rasool	0.08 s	Python 3	2025-05-11 16:26:50
6	Goh Siong Thye	0.09 s	Python 3	2020-08-08 05:41:29
7	Melvin Yang	0.09 s	Python 3	2020-08-22 07:10:11
8	Alex Novikov	0.09 s	Python 3	2020-12-08 03:54:03
9	Martha E.	0.09 s	Python 3	2024-11-22 23:55:56
10	Rebecca Jackson	0.09 s	Python 3	2025-02-05 06:15:25

#	User	Runtime	Language	Date
1	Hidden user	0.15 s	Ruby	2018-03-21 14:50:41
2	Jason Zareski	0.15 s	Ruby	2018-03-21 14:51:14
3	Eugen Neagoe	0.16 s	Ruby	2023-06-27 01:06:11
4	Clement Oh	0.35 s	Ruby	2023-10-22 10:03:40
5	Thomas Feld	0.42 s	Ruby	2022-11-17 20:29:50
6	Macdara mac an tSionnaigh	0.92 s	Ruby	2019-09-30 01:32:10

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-02-28 13:44:00
2	Egor Kulikov	0.01 s	Rust	2025-02-07 12:56:34
3	Rio	0.13 s	Rust	2023-04-13 20:34:25
4	Edvard All	0.15 s	Rust	2021-06-27 17:40:00
5	Isak Jägberg	0.16 s	Rust	2020-07-19 17:17:10
6	Eric Pinter	0.16 s	Rust	2021-11-22 03:42:00
7	Bas Dirks	0.16 s	Rust	2022-01-04 07:57:10
8	Jakob Stoll	0.16 s	Rust	2023-04-13 20:07:56
9	MaxKowal	0.16 s	Rust	2023-04-13 20:40:10
10	Artur Gutmann	0.17 s	Rust	2023-04-13 20:18:54

#	User	Runtime	Language	Date
1	Danial Haseeb	0.10 s	Swift	2023-09-30 03:47:42

#	User	Length	Language	Date
1	Chenzhang Hu	29	Bash	2025-09-13 04:07:04
2	Danny Robinson	111	Bash	2023-09-09 21:41:26

#	User	Length	Language	Date
1	Ron Joshi	232	C	2017-12-17 18:56:53
2	Muhammed Ali Aytürk	239	C	2020-03-02 20:12:50
3	Hidden user	246	C	2017-12-01 13:07:13
4	a_b__c	249	C	2021-02-03 18:53:37
5	Raymond Yang	277	C	2017-12-17 18:55:19
6	Andrew Roberts	282	C	2017-10-06 20:42:55
7	Hidden user	306	C	2025-08-22 08:19:28
8	Wayne	320	C	2016-12-18 21:04:11
9	Emil Wihlander	323	C	2020-12-07 21:45:33
10	Noah Gergel	368	C	2019-01-19 05:37:16

#	User	Length	Language	Date
1	traxex	317	C#	2024-05-16 19:13:05
2	Thomas Norris	530	C#	2019-09-27 21:08:53
3	Jesper Svendgaard Åhman Hansen	664	C#	2019-11-25 15:08:43
4	Göran Andersson	775	C#	2022-05-14 15:59:24
5	Khin Nyunt	824	C#	2017-11-07 06:34:35
6	Umar Rasyid	858	C#	2025-06-24 20:43:54
7	Nikolai Valkamo	941	C#	2022-07-19 15:01:04
8	Viktor Warg	949	C#	2017-05-22 10:37:57
9	Carl Eriksson	1015	C#	2020-01-15 16:06:02
10	Eric Weiss	1124	C#	2022-06-13 23:16:07

#	User	Length	Language	Date
1	Frans Meulenbroeks	151	C++	2025-02-26 22:02:24
2	Mohammad Sadeghi	191	C++	2019-08-02 18:34:27
3	Hidden user	208	C++	2017-07-22 12:27:04
4	Chen Chao	235	C++	2020-10-11 17:58:51
5	Robert Heine	247	C++	2023-09-14 15:37:56
6	Herman Karlsson	249	C++	2016-12-30 02:01:09
7	Đậu Huy Minh	251	C++	2022-11-16 05:37:34
8	ck1080907陳則宇	253	C++	2020-05-26 09:21:28
9	Yeung Man Tsung	253	C++	2022-11-18 15:54:11
10	blameazu	257	C++	2024-05-06 15:50:06

#	User	Length	Language	Date
1	Hidden user	329	Common Lisp	2019-05-26 03:47:57

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	410	F#	2022-09-20 18:39:24

#	User	Length	Language	Date
1	Norbert Voelker	775	Go	2021-04-21 17:45:57
2	Magix	923	Go	2020-09-14 18:35:56

#	User	Length	Language	Date
1	Jan Hlavacek	176	Haskell	2017-02-15 03:20:35
2	Matthew Craven	195	Haskell	2019-10-28 03:49:36
3	Llaurence Git	230	Haskell	2018-11-09 09:51:28
4	Martin Jackson	278	Haskell	2017-05-18 00:09:20
5	Hidden user	298	Haskell	2019-08-23 13:24:45
6	Antony Lee	354	Haskell	2017-07-22 12:35:03
7	Håkon Flatval	382	Haskell	2018-08-30 16:42:37
8	Aurélien Pepin	412	Haskell	2019-09-20 09:50:45
9	Jan Hrček	415	Haskell	2020-10-28 06:49:42
10	Matthew Johnson	437	Haskell	2018-03-09 03:22:49

#	User	Length	Language	Date
1	Hidden user	322	Java	2017-07-21 19:09:23
2	Abimbola Ogundare	381	Java	2021-09-24 03:24:27
3	Kristine Orten	397	Java	2020-11-15 10:43:24
4	Doug Goodman	407	Java	2018-05-26 19:19:58
5	Ada Clevinger	409	Java	2018-03-24 18:25:56
6	Khin Nyunt	415	Java	2017-11-07 05:34:12
7	Altan Tutar	418	Java	2017-06-22 17:15:51
8	Eyleifur Bjarkason	421	Java	2018-03-06 19:46:26
9	Brennan Cleland	423	Java	2022-10-29 02:49:08
10	Anand Iyer	429	Java	2019-01-25 21:19:12

#	User	Length	Language	Date
1	Chris Wong	551	JavaScript (Node.js)	2021-02-16 23:16:26
2	Hidden user	843	JavaScript (Node.js)	2024-11-10 22:54:48
3	Andoko Chandra	1295	JavaScript (Node.js)	2020-10-09 12:29:39

#	User	Length	Language	Date
1	Jimmy Gustafsson	115	JavaScript (SpiderMonkey)	2024-07-15 22:04:59
2	Peter Menyes	179	JavaScript (SpiderMonkey)	2021-08-22 22:59:47
3	Christian Cederquist	216	JavaScript (SpiderMonkey)	2023-01-13 15:05:09
4	Bjørn Chr. Soltvedt	265	JavaScript (SpiderMonkey)	2016-12-09 10:02:09
5	Peter Kedemo	265	JavaScript (SpiderMonkey)	2017-06-08 23:02:21
6	Zach Tschetter	269	JavaScript (SpiderMonkey)	2023-06-05 00:25:44
7	Casey Smith	385	JavaScript (SpiderMonkey)	2019-05-23 21:18:18
8	Emanuel Pilz	417	JavaScript (SpiderMonkey)	2023-04-13 20:22:21
9	Spencer Smith	462	JavaScript (SpiderMonkey)	2017-06-09 17:12:11

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	383	Kotlin	2020-10-08 02:48:43
2	Troy Warmboe	409	Kotlin	2023-04-11 23:06:43
3	Sarek Høverstad Skotåm	432	Kotlin	2021-06-06 07:16:19
4	Einar Kjellback	469	Kotlin	2019-12-13 22:03:08
5	Jahid Hasan Imon	476	Kotlin	2020-05-25 21:31:44
6	Willson Wijaya	586	Kotlin	2020-10-01 07:06:56
7	Adam Rankin	684	Kotlin	2023-05-02 05:56:27
8	Ali M. Nekoh	689	Kotlin	2025-05-08 19:57:04
9	Neil Harmon	1140	Kotlin	2019-04-19 15:28:08
10	Ola Sundell	1409	Kotlin	2019-11-18 12:42:15

#	User	Length	Language	Date
1	Sebastian Banert	238	OCaml	2024-09-02 08:00:56

#	User	Length	Language	Date
1	Ingemar Ragnemalm	415	Pascal	2019-06-04 11:06:46

#	User	Length	Language	Date
1	Jonas Lindenskov Nielsen	456	PHP	2019-11-10 23:57:31

#	User	Length	Language	Date
1	Hakan Kjellerstrand	335	Prolog	2023-02-13 21:01:35
2	Andriy Zyevakov	744	Prolog	2019-04-26 18:50:42

#	User	Length	Language	Date
1	Jesper Öqvist	122	Python 2	2018-10-21 11:13:59
2	Thomas Feld	148	Python 2	2019-09-02 13:19:10
3	Hidden user	171	Python 2	2016-12-06 17:25:34
4	Mathis Hammel	178	Python 2	2017-03-01 11:11:13
5	Meher Béjaoui	202	Python 2	2017-04-01 20:41:08
6	Govind Venugopalan	205	Python 2	2017-12-25 14:36:37
7	Johan Lyts	206	Python 2	2019-06-11 22:28:04
8	Tal Melamed	211	Python 2	2017-11-17 02:38:06
9	Hidden user	212	Python 2	2019-07-13 10:42:43
10	Andreas Björklund	215	Python 2	2020-03-04 20:25:17

#	User	Length	Language	Date
1	Clement Oh	99	Python 3	2023-05-31 08:09:02
2	Benjamin Z White	105	Python 3	2023-04-01 09:40:28
3	Yong Mao	118	Python 3	2022-11-16 00:59:42
4	Alexandre Charland	124	Python 3	2024-06-21 15:34:39
5	Nivin Ashinth	125	Python 3	2021-06-16 12:53:06
6	Ahmed Chamseddine	131	Python 3	2023-07-07 11:12:41
7	Lawrence Escano	131	Python 3	2024-04-05 13:07:11
8	Shashank Bhatt	132	Python 3	2024-07-24 04:56:24
9	Charles Ancheta	133	Python 3	2023-04-09 19:16:40
10	Hidden user	134	Python 3	2023-04-15 12:11:24

#	User	Length	Language	Date
1	Thomas Feld	44	Ruby	2022-12-09 12:30:01
2	Clement Oh	103	Ruby	2023-10-22 10:10:56
3	Eugen Neagoe	182	Ruby	2023-06-27 01:06:11
4	Hidden user	219	Ruby	2018-03-21 14:50:41
5	Jason Zareski	219	Ruby	2018-03-21 14:51:14
6	Macdara mac an tSionnaigh	321	Ruby	2019-09-30 01:32:10

#	User	Length	Language	Date
1	Rio	502	Rust	2023-04-13 20:34:25
2	Artur Gutmann	559	Rust	2023-04-13 20:18:54
3	Bas Dirks	590	Rust	2022-01-04 07:57:10
4	Pankajkumar Patro	604	Rust	2024-09-11 15:44:27
5	Edvard All	659	Rust	2021-06-27 17:40:00
6	Freek van Keulen	685	Rust	2021-07-25 11:53:13
7	Jakob Stoll	723	Rust	2023-04-13 20:07:56
8	MaxKowal	756	Rust	2023-04-13 20:40:10
9	Eric Pinter	1294	Rust	2021-11-22 03:42:00
10	Isak Jägberg	1336	Rust	2020-07-19 17:17:10

#	User	Length	Language	Date
1	Danial Haseeb	447	Swift	2023-09-30 03:47:42

Solution running time distribution