Problem A
Cave Exploration

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Problem statistics

Submissions	2430
Accepted submissions	955
Submission ratio	39.30%
Authors	825
Accepted authors	737
Author ratio	89.33%

#	User	Runtime	Date
1	Ivan Petrov	0.02 s	2020-02-07 09:56:48
2	Hidden user	0.02 s	2023-11-30 22:59:11

#	User	Runtime	Date
1	James Khalil	0.07 s	2024-04-03 04:23:09
2	Artemy Gavrilov	0.07 s	2024-04-03 07:31:02

#	User	Runtime	Date
1	Geralt of Rivia	0.00 s	2022-06-07 03:07:55
2	Theodor Beskow	0.00 s	2022-09-04 18:48:35
3	William Gan	0.01 s	2018-09-15 04:36:53
4	Jonathan Irvin Gunawan	0.01 s	2018-09-15 04:41:42
5	Ainge Team	0.01 s	2018-09-15 04:54:43
6	Muhammad Ayaz Dzulfikar	0.01 s	2018-09-15 04:56:50
7	Hidden user	0.01 s	2018-09-15 04:57:03
8	Hsin Yi Wang	0.01 s	2018-09-15 05:00:08
9	Huy Le	0.01 s	2018-09-15 05:09:30
10	Vincent Alfred	0.01 s	2018-09-15 05:09:47

#	User	Runtime	Date
1	Hidden user	0.04 s	2019-08-07 08:50:12

#	User	Runtime	Date
1	Yitian Wang	0.20 s	2023-03-24 01:42:43
2	Norbert Voelker	0.28 s	2022-02-03 23:04:23

#	User	Runtime	Date
1	Khánh Nguyễn Tiến	0.11 s	2018-09-19 07:52:30
2	Bjørn Dons	0.11 s	2018-12-15 19:32:49
3	Nguyễn Hùng Cường	0.12 s	2018-09-18 06:58:44
4	Nguyễn Mạnh Phúc	0.12 s	2018-10-19 04:39:52
5	Đức Phạm Hoài	0.14 s	2018-09-18 06:28:25
6	Ahmad Barhamje	0.19 s	2020-08-19 05:16:55
7	Sabbir Jaman Ruman	0.26 s	2021-08-29 21:32:03
8	Yuuki Sawanoi	0.28 s	2023-07-16 11:57:12
9	Steven Cheng	0.29 s	2020-06-07 07:47:50
10	Fei Zheng	0.30 s	2018-09-17 04:14:29

#	User	Runtime	Date
1	Christian Cederquist	0.30 s	2023-10-30 21:56:03

#	User	Runtime	Date
1	Sam Keyser	0.43 s	2022-10-17 21:14:09
2	Hidden user	0.57 s	2019-11-22 22:53:15
3	Phường Lên	0.62 s	2019-11-24 20:33:56
4	André Dyrstad	0.75 s	2020-08-13 13:06:59

#	User	Runtime	Date
1	Andreas Björklund	0.11 s	2020-11-15 15:55:32

#	User	Runtime	Date
1	Yi-Min Seah	0.10 s	2022-01-14 06:19:08
2	Erik Bessö	0.11 s	2023-10-18 22:40:36
3	Hasil Sharma	0.12 s	2021-01-31 08:08:03
4	Hidden user	0.12 s	2023-04-02 10:28:17
5	einar bratthall	0.12 s	2023-10-18 19:31:43
6	Nicholas Russell Saerang	0.12 s	2023-11-22 01:27:32
7	Oskar Haarklou Veileborg	0.13 s	2023-09-23 00:07:02
8	Jón Oddur Ólafsson	0.13 s	2024-03-02 13:31:46
9	Bruno Chevalier	0.14 s	2023-02-12 16:56:20
10	Jason Jiang	0.14 s	2023-05-01 20:32:24

#	User	Runtime	Date
1	Niklas Sandén	0.01 s	2023-03-08 19:28:52
2	Logan Detrick	0.01 s	2024-05-17 00:33:49
3	Davíð Helgason	0.02 s	2020-03-01 18:07:24
4	Eric Pinter	0.05 s	2020-10-13 01:23:40

#	User	Length	Date
1	Hidden user	1059	2023-11-30 22:59:11
2	Ivan Petrov	2477	2020-02-07 09:56:48

#	User	Length	Date
1	James Khalil	2495	2024-04-03 04:23:09
2	Artemy Gavrilov	2999	2024-04-03 07:31:02

#	User	Length	Date
1	Árni Bjarnsteinsson	706	2020-02-24 19:35:34
2	Montgomery Bohde	782	2024-03-29 05:15:12
3	MD Minhazul Islam	788	2018-09-20 09:49:21
4	Leonardo Blanger	806	2020-12-27 04:29:11
5	Hyunjun Lee	808	2022-11-02 19:20:35
6	Mohsen Dehbashi	809	2020-05-27 09:43:36
7	William Gan	814	2018-09-15 04:36:53
8	Vinh Nguyễn Thành	830	2018-09-15 05:37:38
9	Lim An Jun	837	2018-09-15 05:14:46
10	Jaehyun Koo	841	2018-09-15 04:44:05

#	User	Length	Date
1	Hidden user	2276	2019-08-07 08:22:15

#	User	Length	Date
1	Yitian Wang	3160	2023-03-24 01:42:43
2	Norbert Voelker	3985	2022-02-03 23:04:23

#	User	Length	Date
1	Doug Goodman	1739	2020-04-11 19:05:31
2	Yuuki Sawanoi	1873	2023-07-16 11:57:12
3	Austin Fernandez	2052	2018-09-17 18:14:42
4	Kevin Dai	2091	2024-03-30 22:32:26
5	Jeffrey Formica	2132	2023-03-31 18:34:54
6	Tylan McKinney	2321	2020-11-12 00:05:54
7	Forrest Stonedahl	2391	2018-10-09 00:25:05
8	Duncan Page	2477	2018-10-23 00:31:45
9	Morten Flensborg Jensen	2490	2019-10-09 22:07:53
10	Graeme Zinck	2493	2019-05-14 20:19:52

#	User	Length	Date
1	Christian Cederquist	3057	2023-10-30 21:56:03

#	User	Length	Date
1	Phường Lên	1129	2019-11-24 20:33:56
2	Hidden user	1215	2019-11-22 22:53:15
3	André Dyrstad	2448	2020-08-13 13:06:59
4	Sam Keyser	3105	2022-10-17 21:14:09

#	User	Length	Date
1	Andreas Björklund	573	2020-11-15 15:55:32

#	User	Length	Date
1	Thibault Raffaillac	634	2021-03-16 14:52:35
2	Erik Amirell Eklöf	823	2024-02-17 00:47:14
3	Nicholas Russell Saerang	879	2023-11-22 01:27:32
4	Brandon Young	885	2023-02-24 01:57:06
5	Jón Oddur Ólafsson	1018	2024-03-02 13:31:46
6	Oluwatosin Segun	1021	2023-04-02 02:30:33
7	Andrew Lin	1059	2024-04-01 04:29:31
8	Kelly Dance	1071	2022-09-12 05:46:17
9	Joshua Mayhugh	1103	2024-03-28 04:53:58
10	Shikhar Baheti	1129	2022-04-04 22:05:00

#	User	Length	Date
1	Davíð Helgason	3115	2020-03-01 18:07:24
2	Eric Pinter	4304	2020-10-13 01:23:40
3	Logan Detrick	4897	2024-05-20 22:41:20
4	Niklas Sandén	27393	2023-03-08 19:28:52

Solution running time distribution