Problem A
Railroad

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Problem statistics

Submissions	6989
Accepted submissions	4476
Submission ratio	64.04%
Authors	4185
Accepted authors	4014
Author ratio	95.91%

#	User	Runtime	Date
1	Chenzhang Hu	0.01 s	2023-09-24 18:06:59
2	Thomas Feld	0.01 s	2023-09-25 14:16:46
3	Kyler Smith	0.01 s	2024-04-21 19:47:52
4	Matthew Davis	0.01 s	2024-04-21 19:56:22

#	User	Runtime	Date
1	Ólafur Andri	0.01 s	2018-01-30 11:40:12
2	Kunwei Zhang	0.01 s	2018-02-04 10:24:57
3	Johan Pettersson	0.01 s	2018-02-06 18:26:46
4	Faisal Rahman	0.01 s	2018-02-12 01:42:10
5	John Ladera	0.01 s	2018-04-04 05:44:41
6	Gustav Kalander	0.01 s	2018-06-03 13:50:07
7	Peter Nordh	0.01 s	2018-06-03 20:06:17
8	Jack Jackson	0.01 s	2018-06-10 22:06:50
9	Alireza Nasrollahzadeh	0.01 s	2018-06-10 22:08:48
10	Kasper Kristoffersen	0.01 s	2018-06-16 00:51:11

#	User	Runtime	Date
1	Brandon Mitchell	0.00 s	2020-04-07 06:45:57

#	User	Runtime	Date
1	Hidden user	0.01 s	2019-07-10 20:27:07
2	Dmytro Bihniak	0.01 s	2019-10-23 10:13:58
3	John Dandy	0.01 s	2020-01-31 02:25:41
4	wibi	0.01 s	2020-08-21 13:42:26
5	David Cawthon	0.02 s	2019-04-24 04:18:46
6	Nicholas Lantz	0.02 s	2019-05-02 18:40:13

#	User	Runtime	Date
1	Emil Jessen	0.03 s	2020-10-06 18:33:43
2	Jacob Harris Cryer Kragh	0.03 s	2022-06-10 06:09:21
3	Sebastian Sternberg	0.04 s	2021-08-24 18:44:20

#	User	Runtime	Date
1	Colton Palmer	0.00 s	2024-01-30 16:15:02
2	David Vinje	0.02 s	2022-08-15 12:13:51
3	Zeheng Li	0.02 s	2022-12-21 05:57:14
4	Jimmy Nejtron	0.02 s	2023-01-25 10:06:27
5	Neal McCarthy	0.06 s	2018-10-27 19:05:01
6	Ross O'Sullivan	0.07 s	2018-08-18 17:51:48
7	Eric Martin	0.07 s	2018-12-29 17:41:40
8	Krzysztof Gibuła	0.07 s	2019-01-13 12:55:41
9	Miguel Martinez	0.07 s	2019-07-11 15:46:52
10	Jonathan Rintala	0.07 s	2019-07-27 09:59:52

#	User	Runtime	Date
1	Micah Stairs	0.05 s	2017-10-20 03:28:57
2	Marco Troltsch	0.05 s	2017-11-16 13:35:26
3	Ali Koer	0.05 s	2017-11-17 03:33:21
4	Ali Gürkan Köroglu	0.05 s	2017-11-17 03:33:37
5	Finn Lidbetter	0.05 s	2017-11-17 05:05:21
6	Aron Bergman	0.05 s	2017-11-17 08:37:32
7	Remus Popoviciu	0.05 s	2017-11-17 11:57:47
8	Steven Cheng	0.05 s	2017-11-18 00:05:25
9	Brian Lee	0.05 s	2017-12-11 21:14:00
10	Chanyeong Park	0.05 s	2017-12-11 21:43:06

#	User	Runtime	Date
1	Camilo Aparecido Ferri Moreira	0.05 s	2018-08-05 04:34:10
2	Carl Sundvall	0.05 s	2018-10-27 12:50:09
3	Anh Lâm	0.05 s	2019-02-07 15:45:19
4	Gurpartap Singh Bhatti	0.05 s	2019-02-18 22:24:45
5	José Lucas	0.05 s	2019-03-12 12:53:18
6	Alex Wendte	0.05 s	2019-03-24 19:36:07
7	Sanjiv Dinakar	0.05 s	2019-04-24 15:13:13
8	Daniel Roeven	0.05 s	2019-05-03 19:19:12
9	Hidden user	0.05 s	2019-06-13 16:09:20
10	Morten Kjerulf	0.05 s	2023-12-27 00:17:24

#	User	Runtime	Date
1	Bjørn Chr. Soltvedt	0.01 s	2017-10-19 12:03:12
2	Nicklas Utgaard	0.01 s	2017-12-26 15:58:42
3	Robin Livesey	0.01 s	2018-04-18 11:09:29
4	Tuomo Olavi	0.01 s	2018-04-24 09:37:02
5	Zachary DeStefano	0.02 s	2018-09-20 16:48:51
6	Andrea Bianchessi	0.02 s	2018-12-04 16:45:04
7	Jeremy Loh	0.02 s	2019-01-05 05:07:21
8	Bernard Perrin	0.02 s	2019-01-20 16:27:21
9	Andrew Kasparevich	0.02 s	2019-02-13 08:22:38
10	Casey Smith	0.02 s	2019-05-28 17:57:39

#	User	Runtime	Date
1	Danny Robinson	0.29 s	2023-06-21 22:06:42

#	User	Runtime	Date
1	Jacob Huebner	0.15 s	2020-04-20 23:56:24
2	Marit van Dijk	0.19 s	2019-02-05 21:16:09
3	Neil Harmon	0.19 s	2019-04-02 15:31:02
4	Dayan Ruben Gonzalez	0.19 s	2020-10-07 18:59:20
5	Albert Pala	0.19 s	2021-05-28 11:37:04
6	Lauren Pace	0.19 s	2021-06-17 21:06:43
7	MisterDerpie	0.19 s	2021-07-01 22:22:30
8	Love Engman	0.20 s	2018-01-14 16:53:47
9	Stefan Kennedy	0.20 s	2018-02-24 12:37:34
10	Nick Ivanov	0.20 s	2018-03-01 02:55:28

#	User	Runtime	Date
1	Zeheng Li	0.00 s	2023-11-19 08:49:36
2	Joseph Chau	0.00 s	2024-01-26 22:18:05

#	User	Runtime	Date
1	Ivan Miloslavov	0.00 s	2020-05-06 21:34:25

#	User	Runtime	Date
1	Ingemar Ragnemalm	0.00 s	2017-11-09 12:03:02
2	Magnus Ragnemalm	0.00 s	2017-11-14 19:17:25
3	Egor Shchetinin	0.00 s	2018-01-23 17:09:08
4	Oleg Smelov	0.00 s	2019-02-26 22:19:57
5	梁智翹4B13 Leung Chi Kiu	0.00 s	2020-02-16 13:32:24
6	Huỳnh Minh Lâm	0.00 s	2022-10-04 15:41:39

#	User	Runtime	Date
1	Amrani Fadi	0.00 s	2024-02-27 16:58:11
2	Saito Ta	0.00 s	2024-04-02 05:03:45

#	User	Runtime	Date
1	Susanne Ragnemalm	0.01 s	2018-03-12 01:21:35
2	Anderson Palmeira	0.01 s	2018-05-04 22:57:39
3	Emil Riis Hansen	0.01 s	2018-10-26 15:20:17
4	Arne Philipeit	0.01 s	2019-04-25 21:29:09
5	Petr Trofimov	0.01 s	2019-06-13 12:49:02
6	Helbin Grégory	0.01 s	2020-02-02 13:43:09
7	Renate	0.01 s	2021-04-12 13:08:08
8	Andre Wahyudi	0.01 s	2022-09-27 04:16:44

#	User	Runtime	Date
1	Andriy Zyevakov	0.01 s	2018-08-27 19:07:49

#	User	Runtime	Date
1	Christofer Ohlsson	0.02 s	2017-10-24 10:41:47
2	Andrei Stoica	0.02 s	2017-11-16 20:33:18
3	Tal Melamed	0.02 s	2017-11-17 02:55:31
4	Rio Harapan Pangihutan	0.02 s	2017-11-17 13:42:48
5	Nick Wu	0.02 s	2017-11-28 20:30:18
6	Sigurður Jens Albertsson	0.02 s	2017-12-13 22:17:47
7	Jaime López	0.02 s	2017-12-16 02:05:26
8	Eoin Davey	0.02 s	2018-01-09 17:55:13
9	Haggai Liu	0.02 s	2018-01-13 01:24:18
10	Hermon Mulat	0.02 s	2018-01-23 03:08:51

#	User	Runtime	Date
1	Ciara Godwin	0.02 s	2017-10-16 12:18:58
2	Cian Ruane	0.02 s	2017-10-16 16:04:38
3	Austin Huff	0.02 s	2017-11-01 04:08:04
4	James Hamm	0.02 s	2017-11-12 18:17:14
5	Maurice zum Felde	0.02 s	2017-11-16 13:26:33
6	Tawan Thampipattanakul	0.02 s	2017-11-16 14:06:50
7	Thossakrai Nakkasem	0.02 s	2017-11-16 14:53:14
8	Warakorn Jetlohasiri	0.02 s	2017-11-16 14:59:53
9	Sirapop Issariyodom	0.02 s	2017-11-16 15:01:47
10	seppanz	0.02 s	2017-11-16 15:03:35

#	User	Runtime	Date
1	Paul Vinell	0.03 s	2018-04-03 12:25:27
2	Hidden user	0.04 s	2018-09-23 20:00:02
3	Daniel Harder	0.04 s	2018-10-29 01:11:56
4	Lim Ming Yean	0.04 s	2018-11-15 09:18:50
5	Kellen Watt	0.04 s	2018-11-18 07:30:47
6	Caleb Harmon	0.04 s	2018-11-20 20:29:36
7	Angelo Ruperti	0.04 s	2019-09-02 19:39:46
8	Macdara mac an tSionnaigh	0.04 s	2019-09-15 19:47:47
9	Hidden user	0.04 s	2019-11-12 11:39:23
10	Linnea Johansson	0.05 s	2020-11-03 11:46:46

#	User	Length	Date
1	Chenzhang Hu	5	2024-02-03 09:28:30
2	Thomas Feld	10	2023-09-26 10:32:08
3	Matthew Davis	83	2024-04-21 19:56:22
4	Kyler Smith	176	2024-04-21 19:47:52

#	User	Length	Date
1	Martin Blom	64	2023-10-19 11:57:02
2	Kellen Watt	98	2018-11-18 07:48:27
3	Hossein Khaliji	123	2020-04-13 11:30:05
4	Hidden user	134	2022-01-04 10:47:59
5	Hidden user	136	2020-01-14 17:15:04
6	Martin Wass	138	2017-11-17 14:59:15
7	Donikon Fajar	138	2018-10-17 10:16:15
8	Aileen Zhu	139	2019-11-27 14:44:48
9	Maria Juhlin	140	2019-11-27 10:17:02
10	Emil Wihlander	141	2020-11-24 22:12:12

#	User	Length	Date
1	Greg Sinclair	92	2023-12-04 17:13:48
2	Fernanda Ferrer Ortega	199	2023-05-05 18:46:54
3	Lucía María Alvarez Sánchez	209	2023-05-24 21:40:29
4	María José López Sánchez	211	2023-02-20 17:48:10
5	John Ladera	215	2018-04-04 05:44:41
6	Steven Albertus Woodward	215	2019-09-30 14:00:04
7	Siddhi Kulkarni	215	2021-02-15 21:00:21
8	Gergo Csonka	215	2021-02-22 00:29:19
9	Kalle Hansen	215	2021-04-20 21:53:04
10	Paolo Celis	215	2023-02-28 05:26:33

#	User	Length	Date
1	Anders Mouanga	87	2023-05-24 01:15:49
2	Robert Logi Jonsson	92	2023-04-10 16:55:30
3	Tyler Fernando	113	2022-10-10 02:58:29
4	a_b__c	119	2021-01-05 09:28:45
5	Leonardo Blanger	120	2021-01-11 00:20:34
6	妹様万歳	121	2019-12-31 07:59:16
7	Hidden user	122	2018-09-15 17:04:34
8	Alex Rudzenis	127	2021-09-27 18:19:24
9	Nasis Dereje	129	2022-07-25 16:06:15
10	Sihan Tawsik	131	2018-10-06 14:37:23

#	User	Length	Date
1	Brandon Mitchell	489	2020-04-07 06:45:57

#	User	Length	Date
1	Hidden user	96	2019-07-10 20:27:07
2	John Dandy	100	2020-01-31 02:25:41
3	Dmytro Bihniak	105	2019-10-23 10:13:58
4	wibi	136	2020-08-21 13:42:26
5	David Cawthon	166	2019-04-24 04:18:46
6	Nicholas Lantz	733	2019-05-02 18:40:13

#	User	Length	Date
1	Jacob Harris Cryer Kragh	152	2022-06-10 06:09:21
2	Emil Jessen	266	2020-10-06 18:33:43
3	Sebastian Sternberg	317	2021-08-24 18:44:20

#	User	Length	Date
1	dick move	154	2021-05-30 20:34:54
2	Miguel Martinez	165	2019-07-11 15:46:52
3	David Vinje	168	2022-08-15 12:13:51
4	Thomas Mailund	168	2020-11-19 06:10:19
5	Wojtek Bednarzak	183	2018-05-01 00:51:56
6	Zeheng Li	184	2022-12-21 05:57:14
7	Jimmy Nejtron	204	2023-01-25 10:06:27
8	Ng Tze Sheng	204	2020-03-01 01:58:20
9	Kok Dith	208	2021-07-30 15:07:59
10	Colton Palmer	215	2024-01-30 16:15:38

#	User	Length	Date
1	Monique Oliveira	92	2021-06-20 03:55:22
2	Tim Put	95	2021-08-05 03:06:15
3	Henrik Olsen Eide	95	2021-12-20 16:09:01
4	Jahid Hasan Imon	100	2020-09-29 23:56:30
5	Sebastian Banert	103	2023-04-13 20:01:34
6	Matthew Johnson	104	2017-12-14 05:38:40
7	Steinar Simonnes	104	2023-10-15 22:04:00
8	Phan Ngọc Tiên	112	2022-03-20 19:52:17
9	Håkon Flatval	116	2018-06-12 22:52:25
10	Ragnhild Aalvik	135	2018-11-03 23:24:51

#	User	Length	Date
1	Sohail Saghar	161	2022-12-28 20:27:17
2	Benjamin Wen	161	2022-12-28 20:27:20
3	Lim Ting Kai	176	2023-06-01 16:48:34
4	John Copley	222	2017-12-16 22:16:16
5	Anton Sandin	227	2022-04-25 11:48:34
6	Prakash Sanyasi	231	2018-10-02 20:49:19
7	Justin Turner	233	2018-01-16 05:19:54
8	Witko Tamm	234	2019-12-04 22:25:18
9	Duncan Page	236	2018-11-06 21:59:55
10	Emily Wang	240	2020-07-03 17:22:04

#	User	Length	Date
1	Peter Kedemo	241	2020-01-14 13:28:21
2	Antoine Bauri	254	2021-02-21 20:46:14
3	Nitro Dash	279	2019-10-05 18:19:01
4	Alex Wendte	308	2019-03-24 19:36:07
5	Gurpartap Singh Bhatti	313	2019-02-18 22:24:45
6	Chris Wong	333	2021-02-01 02:53:33
7	Andrew Nida	373	2023-12-31 20:28:26
8	Daniel Roeven	384	2019-05-03 19:19:12
9	Hidden user	384	2022-11-22 22:36:14
10	Howard Tin Chi Chan	384	2021-03-01 17:24:38

#	User	Length	Date
1	Christian Cederquist	55	2022-11-08 02:11:30
2	Evan Magill	60	2024-04-09 06:27:11
3	Zach Tschetter	70	2023-06-27 23:02:43
4	Zachary DeStefano	71	2018-09-20 16:48:51
5	Peter Menyes	81	2020-12-27 20:47:15
6	Tuomo Olavi	89	2018-04-24 09:37:02
7	Bernard Perrin	92	2019-01-20 16:27:21
8	Bjørn Chr. Soltvedt	95	2017-10-19 12:03:12
9	Robin Livesey	140	2018-04-18 11:09:29
10	Andrea Bianchessi	185	2018-12-04 16:45:04

#	User	Length	Date
1	Danny Robinson	63	2023-06-21 22:09:10

#	User	Length	Date
1	Dmitry Shostak	139	2019-08-28 10:42:03
2	Albert Pala	147	2021-05-28 11:37:04
3	Troy Warmboe	154	2018-10-20 15:21:16
4	Jacob Huebner	173	2020-04-20 23:56:24
5	Lauren Pace	202	2021-06-17 21:06:43
6	Stefan Kennedy	206	2018-02-24 12:37:34
7	Love Engman	222	2018-01-14 16:53:47
8	Neil Harmon	227	2019-04-02 15:31:02
9	Marit van Dijk	250	2019-02-05 21:16:09
10	Tarantino O'Connor	263	2018-10-27 10:50:49

#	User	Length	Date
1	Zeheng Li	113	2023-11-19 08:49:36
2	Joseph Chau	125	2024-01-26 22:18:05

#	User	Length	Date
1	Ivan Miloslavov	207	2020-05-06 21:34:25

#	User	Length	Date
1	Egor Shchetinin	135	2018-01-23 17:09:08
2	Oleg Smelov	147	2019-02-26 22:19:57
3	Ingemar Ragnemalm	150	2017-11-09 12:03:02
4	梁智翹4B13 Leung Chi Kiu	157	2020-02-16 13:32:24
5	Magnus Ragnemalm	159	2017-11-14 19:17:25
6	Huỳnh Minh Lâm	198	2022-10-04 15:49:08

#	User	Length	Date
1	Saito Ta	30	2024-04-02 05:03:45
2	Amrani Fadi	173	2024-02-27 16:58:11

#	User	Length	Date
1	Renate	121	2021-04-12 13:08:08
2	Anderson Palmeira	131	2018-05-04 22:57:39
3	Arne Philipeit	167	2019-04-25 21:29:09
4	Susanne Ragnemalm	200	2018-03-12 01:21:35
5	Helbin Grégory	201	2020-02-02 13:43:09
6	Petr Trofimov	202	2019-06-13 12:49:02
7	Emil Riis Hansen	340	2018-10-26 15:20:17
8	Andre Wahyudi	654	2022-09-27 04:16:44

#	User	Length	Date
1	Andriy Zyevakov	100	2018-08-27 19:07:49

#	User	Length	Date
1	JanLitwin	56	2024-03-04 16:50:42
2	Thomas Feld	68	2019-08-19 20:21:28
3	Andreas Eisele	69	2018-10-04 08:53:25
4	Sigurður Jens Albertsson	71	2017-12-13 22:17:47
5	Christofer Ohlsson	74	2017-10-24 10:41:47
6	Øyvind Haarberg	74	2018-10-08 20:43:16
7	Jesper Öqvist	79	2018-10-18 20:34:28
8	Haggai Liu	81	2018-01-13 01:24:18
9	Lars Åström	93	2018-10-06 23:39:08
10	Kuan Wei Heng	93	2019-01-09 04:06:05

#	User	Length	Date
1	Kacem Khaled	41	2022-10-14 06:02:29
2	Joas Haunstrup	41	2022-10-16 15:34:34
3	Jaydan Aladro	41	2022-10-21 04:56:48
4	Jesper Bech Christensen	41	2022-10-24 13:03:17
5	Evan Rose	41	2022-11-11 20:48:59
6	Blake Herrera	41	2022-11-12 01:24:47
7	Maxwell Penders	41	2023-06-09 22:34:27
8	Hidden user	41	2023-09-02 09:11:50
9	Jonathan Hallström	41	2023-06-09 22:33:16
10	Simon Hellsten	41	2023-08-21 11:15:17

#	User	Length	Date
1	Jesper Bech Christensen	37	2022-10-24 13:14:46
2	Thomas Feld	37	2022-11-02 09:13:33
3	Hidden user	47	2019-11-12 11:41:20
4	Christian Cederquist	54	2022-11-08 02:19:13
5	Alexander Bilde Pedersen	57	2023-04-23 22:29:41
6	Frederik Petersen	69	2024-04-05 12:08:59
7	Régis Hanol	70	2022-01-09 16:46:52
8	TobiasZ	73	2022-01-23 15:02:29
9	Drew Wilson	73	2023-06-15 17:39:16
10	Daniel Harder	75	2018-10-29 01:11:56

#	User	Length	Date
1	Hovig Manjikian	257	2020-01-04 12:48:49
2	Hidden user	328	2021-12-02 16:25:13
3	Lukas Kahnert	329	2020-11-23 09:29:21
4	Leonardo Gurgel	333	2021-06-20 06:20:34
5	Hidden user	337	2020-01-09 04:40:17
6	Andriy Semenistiy	371	2021-02-13 17:11:18
7	Thomas	373	2020-12-09 20:31:41
8	Henrik Melsom	374	2019-07-10 14:15:03
9	Mattéo Ladrat	374	2021-01-23 12:28:09
10	Thea Hiltner	375	2021-09-16 04:00:39

Solution running time distribution