Problem A
A Mazing! — Problem Statistics

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Submissions	5927
Accepted submissions	1515
Submission ratio	25.56%
Authors	744
Full solves [?]	503
Full solve Ratio	67.61%

#	User	Runtime	Language	Date
1	Hidden user	0.10 s	C	2018-01-28 22:40:21
2	Sascha	0.11 s	C	2024-06-03 21:08:31
3	Alexander Bilde Pedersen	0.12 s	C	2023-06-29 01:21:34
4	Richard Ewald	0.16 s	C	2022-12-15 23:24:00
5	Martin Björklund	0.20 s	C	2021-04-30 17:23:44

#	User	Runtime	Language	Date
1	Gustav Kalander	0.18 s	C#	2018-06-08 19:33:25
2	Linus Ekblom	0.19 s	C#	2020-12-02 21:17:00
3	Jakub Jagiello	0.19 s	C#	2020-12-03 14:17:02
4	Martin Mörsell	0.24 s	C#	2020-12-01 21:09:31
5	Viktor Ekblom	0.28 s	C#	2020-11-29 16:19:08
6	Jens Mellberg	0.34 s	C#	2023-12-27 02:48:59
7	Kris O'Bryan	0.39 s	C#	2020-07-29 23:06:35

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	C++	2018-01-29 02:14:46
2	Håvard Stuberg	0.11 s	C++	2018-01-24 15:46:10
3	Olav Dahl Larsen	0.11 s	C++	2018-01-24 16:07:37
4	Preben Bucher-Johannessen	0.11 s	C++	2018-01-25 10:49:30
5	Gøran Solheim Humlestøl	0.11 s	C++	2018-01-25 15:31:22
6	Minh Phúc Lê	0.11 s	C++	2018-02-09 10:02:59
7	Kevin Chevalier	0.11 s	C++	2019-08-20 00:11:43
8	Lorenzo Carlin	0.11 s	C++	2023-04-07 12:24:54
9	Sascha	0.11 s	C++	2024-06-05 17:38:32
10	Hidden user	0.12 s	C++	2017-10-21 20:52:08

#	User	Runtime	Language	Date
1	Mike Nguyen	0.15 s	Go	2024-03-04 03:31:39
2	Vetle Håland Bergstad	0.20 s	Go	2019-01-31 11:33:52
3	Viktor Mörsell	0.21 s	Go	2020-11-28 12:51:34
4	Viktor Mörsell	0.22 s	Go	2020-11-26 21:21:29

#	User	Runtime	Language	Date
1	Stian	0.80 s	Haskell	2021-10-14 17:13:43
2	Steinar Simonnes	0.94 s	Haskell	2025-03-18 16:14:11
3	Edmunds Cers	0.94 s	Haskell	2025-08-13 22:52:09
4	Morten Lohne	0.95 s	Haskell	2018-01-23 14:49:58
5	Birk Tjelmeland	0.98 s	Haskell	2018-01-23 20:05:30

#	User	Runtime	Language	Date
1	Bjørn Dons	0.35 s	Java	2018-11-27 02:08:06
2	André Berge	0.48 s	Java	2018-10-09 20:47:24
3	Emil Bak-Møller	0.48 s	Java	2020-09-23 17:21:00
4	Mitch Price	0.50 s	Java	2017-10-24 03:00:22
5	Jeremy Lim	0.50 s	Java	2024-04-09 06:43:52
6	Crystal Sharpe	0.51 s	Java	2020-07-19 05:37:27
7	Aldo Chow	0.52 s	Java	2017-10-22 23:22:35
8	Simen Lone	0.52 s	Java	2018-02-16 01:53:05
9	Ronald Rojas	0.53 s	Java	2017-10-21 22:04:42
10	Hsu Zhong Jun	0.53 s	Java	2019-07-28 19:12:48

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.17 s	JavaScript (SpiderMonkey)	2023-07-05 00:51:44
2	Bjørn Chr. Soltvedt	0.28 s	JavaScript (SpiderMonkey)	2018-08-07 14:41:13

#	User	Runtime	Language	Date
1	Danny Mittal	0.65 s	Kotlin	2020-10-08 22:05:21
2	Hidden user	0.78 s	Kotlin	2020-10-11 21:39:03

#	User	Runtime	Language	Date
1	Sigurður Jens Albertsson	0.21 s	Python 2	2017-11-30 22:27:58
2	Jeff Robertson	0.22 s	Python 2	2017-10-21 21:57:24
3	Haochen Chen	0.27 s	Python 2	2017-10-23 05:16:39
4	Adam Barth	0.30 s	Python 2	2017-10-21 20:43:57
5	Thore Husfeldt	0.32 s	Python 2	2019-04-02 17:19:09
6	Øyvind Haarberg	0.33 s	Python 2	2018-01-25 17:39:37
7	Mel Shu	0.34 s	Python 2	2017-11-10 22:54:18
8	Hidden user	0.35 s	Python 2	2019-11-26 00:26:08
9	Aarav Singh	0.44 s	Python 2	2017-10-21 21:57:03
10	Nasser Miah	0.46 s	Python 2	2018-03-06 22:54:58

#	User	Runtime	Language	Date
1	Linus Eklund	0.21 s	Python 3	2019-11-13 22:11:28
2	Tolga Atam	0.21 s	Python 3	2024-11-07 05:03:35
3	Kevin Wang	0.24 s	Python 3	2017-10-25 01:02:56
4	Jonathon Arbaugh	0.25 s	Python 3	2017-10-21 21:02:52
5	Shawn Mathew	0.26 s	Python 3	2017-10-21 23:00:32
6	David Ludwig	0.26 s	Python 3	2019-10-15 08:25:31
7	Christoph Dürr	0.26 s	Python 3	2024-09-16 16:55:44
8	Torstein Strømme	0.27 s	Python 3	2017-11-26 00:13:38
9	Andrew Fong	0.27 s	Python 3	2024-10-18 07:09:31
10	Trym Rødvei	0.28 s	Python 3	2019-01-21 19:11:08

#	User	Runtime	Language	Date
1	Odin Hufnagl	0.23 s	Ruby	2024-02-07 12:10:58

#	User	Runtime	Language	Date
1	Jakub Jagiello	0.11 s	Rust	2020-07-23 11:42:59
2	Stian Soltvedt	0.12 s	Rust	2019-01-29 21:12:46
3	Daniel Anker Hermansen	0.12 s	Rust	2023-04-04 11:22:46
4	James Felder	0.12 s	Rust	2024-04-05 01:26:13
5	Vincent Lagerros	0.13 s	Rust	2025-10-17 23:59:06
6	Adam Yaser Sweilem	0.14 s	Rust	2025-03-02 15:14:22
7	A Potato	0.15 s	Rust	2025-10-06 16:45:13
8	Klas af Geijerstam	0.16 s	Rust	2020-06-05 16:01:46
9	Yoeri Otten	0.17 s	Rust	2021-09-09 15:06:39
10	Gustav Wass	0.17 s	Rust	2024-03-19 09:06:21

#	User	Length	Language	Date
1	Hidden user	681	C	2018-01-29 09:16:25
2	Martin Björklund	1515	C	2021-04-30 17:23:44
3	Sascha	2086	C	2024-06-03 20:19:01
4	Alexander Bilde Pedersen	2390	C	2023-06-29 01:21:34
5	Richard Ewald	3217	C	2022-12-16 02:39:35

#	User	Length	Language	Date
1	Gustav Kalander	2131	C#	2018-06-08 19:33:25
2	Jakub Jagiello	2503	C#	2020-12-03 14:55:27
3	Viktor Ekblom	3246	C#	2020-11-29 00:49:12
4	Linus Ekblom	3561	C#	2020-12-02 21:17:00
5	Jens Mellberg	4601	C#	2023-12-27 02:48:59
6	Martin Mörsell	4837	C#	2020-11-19 00:26:53
7	Kris O'Bryan	10685	C#	2020-07-29 23:06:35

#	User	Length	Language	Date
1	William Gan	610	C++	2018-12-06 05:17:53
2	Birk Tjelmeland	620	C++	2017-11-13 12:21:56
3	Hidden user	681	C++	2018-01-29 09:15:43
4	Jeremy Lim	687	C++	2024-02-18 06:24:57
5	Akif Patel	727	C++	2019-04-25 07:04:05
6	Jerrell Ezralemuel	792	C++	2020-01-27 05:41:21
7	Hidden user	796	C++	2023-04-28 10:40:09
8	Armen Andreasyan	811	C++	2021-06-21 12:45:36
9	Lorenzo Ferrari	823	C++	2022-03-05 12:37:28
10	Tabitha Chippendale	829	C++	2023-04-05 16:33:39

#	User	Length	Language	Date
1	Mike Nguyen	836	Go	2024-03-04 03:41:51
2	Vetle Håland Bergstad	983	Go	2019-01-31 11:37:55
3	Viktor Mörsell	1138	Go	2020-11-26 22:39:53
4	Viktor Mörsell	1138	Go	2020-11-27 22:28:21

#	User	Length	Language	Date
1	Birk Tjelmeland	1380	Haskell	2018-01-23 20:05:30
2	Steinar Simonnes	1484	Haskell	2025-03-18 16:12:25
3	Morten Lohne	1611	Haskell	2018-02-18 21:27:27
4	Edmunds Cers	1668	Haskell	2025-08-13 22:53:03
5	Stian	3976	Haskell	2021-10-14 17:14:09

#	User	Length	Language	Date
1	Jacob Magnuson	743	Java	2019-04-11 05:14:52
2	Ryan Hunt	1022	Java	2017-11-09 06:48:35
3	Jeremy Lim	1122	Java	2023-11-20 19:51:17
4	Doug Goodman	1222	Java	2020-03-07 19:55:20
5	Bryan Ngu Shu Yu	1276	Java	2024-11-12 04:16:31
6	Crystal Sharpe	1334	Java	2020-07-19 05:37:27
7	Ong Wei Hong	1368	Java	2022-07-22 03:59:37
8	Kelvin Peng	1463	Java	2020-10-08 04:47:32
9	Jiru Xu	1479	Java	2017-10-24 01:06:10
10	Jonas Mossin Wagle	1486	Java	2018-02-11 14:17:58

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	959	JavaScript (SpiderMonkey)	2023-07-05 00:51:44
2	Bjørn Chr. Soltvedt	1078	JavaScript (SpiderMonkey)	2018-08-07 14:41:13

#	User	Length	Language	Date
1	Danny Mittal	954	Kotlin	2020-10-08 22:05:21
2	Hidden user	2497	Kotlin	2020-10-11 21:39:03

#	User	Length	Language	Date
1	Øyvind Haarberg	1059	Python 2	2018-01-25 17:39:37
2	Sigurður Jens Albertsson	1123	Python 2	2017-11-30 22:27:58
3	Adam Barth	1129	Python 2	2017-10-21 20:43:57
4	Hidden user	1217	Python 2	2019-11-26 00:27:06
5	Haochen Chen	1263	Python 2	2017-10-23 05:16:39
6	Thore Husfeldt	1357	Python 2	2019-04-02 17:19:09
7	Jeff Robertson	1389	Python 2	2017-10-21 21:57:24
8	Alex Van Keulen	1415	Python 2	2018-02-02 23:11:51
9	Mel Shu	1571	Python 2	2017-11-10 22:54:18
10	Aarav Singh	1992	Python 2	2017-10-21 21:57:03

#	User	Length	Language	Date
1	Lawry Sorenson	263	Python 3	2025-03-27 20:48:18
2	Simen Sørensen	559	Python 3	2025-05-07 23:27:27
3	Caleb Dastrup	563	Python 3	2025-03-28 18:34:12
4	Julie Lagoni	575	Python 3	2025-02-11 16:36:56
5	Sander Oppen	600	Python 3	2025-04-24 17:19:36
6	Jakob Rødal Skaar	601	Python 3	2025-03-15 14:58:34
7	Oskar Haarklou Veileborg	621	Python 3	2019-04-30 14:49:09
8	Asger Hautop Drewsen	628	Python 3	2020-01-14 11:45:47
9	Andrew Fong	631	Python 3	2024-10-18 07:09:31
10	Jonathon Arbaugh	639	Python 3	2017-10-21 21:02:52

#	User	Length	Language	Date
1	Odin Hufnagl	2290	Ruby	2024-02-07 12:10:58

#	User	Length	Language	Date
1	Gustav Wass	1773	Rust	2024-03-19 09:12:02
2	Adam Yaser Sweilem	2105	Rust	2025-03-02 15:14:22
3	James Felder	2758	Rust	2024-04-05 01:19:24
4	Jakub Jagiello	2761	Rust	2020-07-16 11:56:25
5	Klas af Geijerstam	3100	Rust	2020-11-19 15:21:29
6	Martin Mörsell	3265	Rust	2020-11-11 10:57:19
7	Stian Soltvedt	3950	Rust	2019-01-29 21:12:46
8	A Potato	5669	Rust	2025-10-06 16:45:13
9	Yoeri Otten	8481	Rust	2021-09-09 15:06:39
10	Vincent Lagerros	16839	Rust	00:01:19

Solution running time distribution