Problem A
Transit Woes — Problem Statistics

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Submissions	5543
Accepted submissions	3441
Submission ratio	62.08%
Authors	3164
Full solves [?]	3038
Full solve Ratio	96.02%

#	User	Runtime	Language	Date
1	Simon Lundqvist	0.02 s	C#	2020-03-22 11:05:09
2	Tobias Arendt Laursen	0.02 s	C#	2020-03-23 12:05:36
3	Sean Harding	0.02 s	C#	2020-04-07 01:32:05
4	Gurpartap Singh Bhatti	0.02 s	C#	2020-04-08 02:56:15
5	Charles Christensen	0.02 s	C#	2020-04-17 19:55:04
6	Eralp Karakullukcu	0.02 s	C#	2020-04-29 16:39:38
7	Mads Smith	0.02 s	C#	2020-05-12 18:23:04
8	Bryce Goddard	0.02 s	C#	2020-05-13 22:05:40
9	Юра Юра	0.02 s	C#	2020-05-15 18:17:21
10	Jorge Almeida	0.02 s	C#	2020-05-16 22:40:11

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-06-20 14:28:38
2	Tristen MacPherson	0.01 s	Common Lisp	2020-07-19 07:02:58
3	wibi	0.01 s	Common Lisp	2020-08-15 03:44:09

#	User	Runtime	Language	Date
1	Patrick Bahr	0.03 s	F#	2021-02-13 09:29:22
2	Jacob Harris Cryer Kragh	0.05 s	F#	2022-05-18 18:57:18
3	Jonas Hartmann Andersen	0.08 s	F#	2020-05-10 13:55:05

#	User	Runtime	Language	Date
1	Ian Howell	0.02 s	Go	2020-03-24 21:16:55
2	Mohamed Ramrami	0.02 s	Go	2020-04-23 07:07:37
3	Aloysius Lee	0.02 s	Go	2020-05-05 14:27:42
4	Adrianus Vian	0.02 s	Go	2020-07-10 18:10:15
5	Jimmy Nejtron	0.02 s	Go	2023-01-17 15:10:48
6	Kok Dith	0.07 s	Go	2021-07-30 04:21:31
7	Zia kasyfi	0.08 s	Go	2020-07-10 18:09:29
8	Leet Oss	0.08 s	Go	2020-08-17 04:36:21
9	Norbert Voelker	0.08 s	Go	2021-04-08 21:03:54
10	Krzysztof Gibuła	0.08 s	Go	2021-08-07 19:34:38

#	User	Runtime	Language	Date
1	Tom Magnusson	0.00 s	Haskell	2020-03-29 22:04:51
2	Adam Sandstedt	0.00 s	Haskell	2020-04-19 13:09:10
3	Andreas Ländle	0.00 s	Haskell	2020-05-21 17:26:51
4	Scott Dauer	0.00 s	Haskell	2022-02-26 19:08:30
5	Brian Hwang	0.00 s	Haskell	2022-09-05 05:12:19
6	mark24	0.00 s	Haskell	2022-09-14 08:10:42
7	Greg Rosser	0.00 s	Haskell	2023-07-25 08:28:54
8	Steinar Simonnes	0.00 s	Haskell	2024-02-14 14:16:49
9	Simon Reid	0.00 s	Haskell	2025-07-18 04:32:11
10	Brent Yorgey	0.01 s	Haskell	2020-03-19 18:26:01

#	User	Runtime	Language	Date
1	Goh Zhixuan Jeremiah	0.04 s	Java	2025-02-09 03:34:20
2	Promit Das	0.04 s	Java	2026-02-03 22:39:27
3	Lee Heng Sheng	0.05 s	Java	2024-04-17 04:44:34
4	Ku Brian	0.05 s	Java	2024-04-29 04:53:17
5	Wen Junhua	0.06 s	Java	2020-04-28 10:49:23
6	Crystal Sharpe	0.06 s	Java	2020-05-02 14:39:57
7	Leow Chen Yue, Abel	0.06 s	Java	2020-05-05 13:38:28
8	Kevin Sofronas	0.06 s	Java	2020-05-13 21:58:28
9	Ryan Lee Ting Zhern	0.06 s	Java	2020-05-14 09:00:21
10	Yee King Yap	0.06 s	Java	2020-05-19 12:26:29

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (Node.js)	2024-09-17 12:53:31
2	John Carr	0.04 s	JavaScript (Node.js)	2025-01-30 01:06:39
3	Đậu Huy Minh	0.09 s	JavaScript (Node.js)	2022-10-09 04:54:58
4	Chris Wong	0.41 s	JavaScript (Node.js)	2021-01-31 21:12:19
5	John	0.42 s	JavaScript (Node.js)	2020-07-16 04:32:16
6	Tiago Oliveira	0.42 s	JavaScript (Node.js)	2020-08-17 19:08:29
7	Hovhannes Kantuni	0.42 s	JavaScript (Node.js)	2020-08-18 20:40:00
8	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-09-30 15:31:41
9	Taufik Hidayat	0.42 s	JavaScript (Node.js)	2020-10-09 03:15:17
10	Peter Kedemo	0.42 s	JavaScript (Node.js)	2020-12-25 22:12:05

#	User	Runtime	Language	Date
1	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2020-12-27 16:57:36
2	Nicklas Utgaard	0.02 s	JavaScript (SpiderMonkey)	2021-01-02 18:44:58
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2022-06-15 07:16:34
4	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2022-11-09 15:55:19
5	Evan Magill	0.02 s	JavaScript (SpiderMonkey)	2024-04-13 02:30:39
6	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2020-03-19 19:29:34
7	Andrea Bianchessi	0.03 s	JavaScript (SpiderMonkey)	2020-04-09 22:27:48

#	User	Runtime	Language	Date
1	Timothy Gaede	0.60 s	Julia	2024-03-31 05:29:43

#	User	Runtime	Language	Date
1	Hidden user	0.11 s	Kotlin	2020-05-02 03:29:36
2	Albert Pala	0.11 s	Kotlin	2021-06-29 16:07:14
3	Jacob Huebner	0.13 s	Kotlin	2020-05-31 04:07:21
4	Marit van Dijk	0.15 s	Kotlin	2021-09-15 08:50:06
5	Ola Sundell	0.16 s	Kotlin	2020-08-19 12:13:34
6	Christian Komusiewicz	0.18 s	Kotlin	2020-12-23 19:55:14
7	Adam Rankin	0.18 s	Kotlin	2023-05-04 05:02:54
8	Einar Kjellback	0.19 s	Kotlin	2020-08-11 09:16:23
9	Troy Warmboe	0.19 s	Kotlin	2021-10-08 23:23:23
10	Emil Eriksmoen Stensland	0.19 s	Kotlin	2022-03-08 22:47:01

#	User	Runtime	Language	Date
1	Matthew Lutze	0.00 s	OCaml	2020-05-10 17:02:49
2	Fredrik Eriksson	0.00 s	OCaml	2024-10-18 17:26:10

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-04-29 21:58:25

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2020-04-02 05:29:51
2	David Connolly	0.00 s	Pascal	2022-04-15 12:15:34

#	User	Runtime	Language	Date
1	Saito Ta	0.01 s	Perl	2024-04-03 08:28:39

#	User	Runtime	Language	Date
1	Thomas Marty	0.01 s	PHP	2021-01-24 23:53:44
2	Renate Fiala-Lundström	0.01 s	PHP	2021-04-19 12:01:02
3	Muhammad Asyraf bin Akop	0.01 s	PHP	2022-05-13 07:19:00
4	Andre Wahyudi	0.01 s	PHP	2022-09-08 05:17:42
5	Victor Santos	0.01 s	PHP	2024-04-17 19:01:39
6	Nathã William Sena Soares	0.01 s	PHP	2024-04-24 14:39:51

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-01-28 15:44:05
2	Andriy Zyevakov	0.02 s	Prolog	2024-09-18 10:36:44

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.02 s	Python 2	2022-06-20 13:08:33
2	Godmar Back	0.03 s	Python 2	2020-03-14 18:53:06
3	Ram Basnet	0.03 s	Python 2	2020-03-23 04:54:42
4	Thomas Feld	0.03 s	Python 2	2020-03-25 08:59:31
5	Lars Åström	0.03 s	Python 2	2020-03-25 12:35:28
6	Maj Stenmark	0.03 s	Python 2	2020-03-29 10:55:08
7	Andreas Björklund	0.03 s	Python 2	2020-03-29 12:52:06
8	Mohamed Elhalees	0.03 s	Python 2	2020-04-18 20:55:19
9	Agis Daniels	0.03 s	Python 2	2020-05-01 14:15:32
10	Johan Lyts	0.03 s	Python 2	2020-05-02 12:27:17

#	User	Runtime	Language	Date
1	Amanda Andersson	0.04 s	Python 3	2022-06-05 21:01:42
2	András Biczó	0.04 s	Python 3	2022-06-05 23:46:52
3	Wouter Dijkstra	0.04 s	Python 3	2022-06-19 06:31:06
4	Hasan Kalzi	0.04 s	Python 3	2022-06-20 13:08:44
5	Harry Wang	0.04 s	Python 3	2022-06-22 05:01:20
6	Andrew Yu	0.04 s	Python 3	2022-06-23 16:59:28
7	Ethan Tang	0.04 s	Python 3	2022-06-23 19:34:48
8	Issa Issack	0.04 s	Python 3	2022-06-23 20:05:51
9	William Coury	0.04 s	Python 3	2022-06-23 20:54:11
10	Kaushik Kurapati	0.04 s	Python 3	2022-06-23 22:22:00

#	User	Runtime	Language	Date
1	Jia Wei Lee	0.05 s	Ruby	2020-04-28 13:54:59
2	Donald Dong	0.05 s	Ruby	2021-02-21 05:38:10
3	Jonathan Ogden	0.05 s	Ruby	2021-05-26 17:06:00
4	Gabriel Stanculescu	0.05 s	Ruby	2021-09-26 11:42:48
5	Régis Hanol	0.05 s	Ruby	2022-01-07 11:25:22
6	TobiasZ	0.05 s	Ruby	2022-01-19 18:12:45
7	Thomas Feld	0.06 s	Ruby	2022-11-02 10:52:11
8	Russell Ng	0.06 s	Ruby	2025-06-06 10:00:15
9	Eugen Neagoe	0.07 s	Ruby	2026-01-27 21:24:36

#	User	Length	Language	Date
1	Zachariah Goldthorpe	209	C	2020-07-18 17:07:55
2	Martin Blom	226	C	2023-10-04 12:16:07
3	Mustapha Slimani	470	C	2020-04-23 01:37:27
4	Hidden user	520	C	2020-08-27 14:10:12
5	Pallavi Sowl	531	C	2022-03-16 07:36:02
6	Hidden user	548	C	2020-06-04 19:57:34
7	Hidden user	548	C	2026-01-25 03:55:00
8	Stephen John Bunting	551	C	2020-09-28 20:33:23
9	Nicholas Sippley	556	C	2021-03-22 13:41:36
10	Justin Strand	558	C	2022-09-06 00:07:38

#	User	Length	Language	Date
1	Gregory Sinclair	221	C#	2023-11-26 00:10:27
2	Göran Andersson	671	C#	2022-05-06 22:18:33
3	Esty Crow	702	C#	2022-09-30 01:49:16
4	Владимир Хилько	776	C#	2022-05-17 11:29:36
5	Julian Brandt	788	C#	2020-09-30 19:57:04
6	Benjamin Bilbeau	809	C#	2023-09-19 18:23:13
7	Pavel Mardouski	810	C#	2021-01-11 04:50:27
8	Gurpartap Singh Bhatti	819	C#	2020-04-08 03:02:40
9	David Ray	917	C#	2022-09-07 19:58:38
10	Thomas Norris	921	C#	2020-11-11 22:28:05

#	User	Length	Language	Date
1	ck1080895吳長聿	262	C++	2020-05-26 07:49:48
2	Daniel Foreacre	276	C++	2022-09-27 02:27:35
3	吳俊廷	288	C++	2020-05-26 07:45:03
4	Muhammad Hassoud	320	C++	2020-05-06 12:43:47
5	Admasu Abera	352	C++	2021-01-04 14:26:12
6	Mouli Muppidi	358	C++	2022-05-30 01:53:53
7	Hidden user	360	C++	2022-11-22 18:00:36
8	Elias Lolck	363	C++	2021-04-09 14:25:22
9	son le thanh	365	C++	2021-10-14 12:51:49
10	Kin Liung	373	C++	2020-09-27 21:10:35

#	User	Length	Language	Date
1	wibi	504	Common Lisp	2020-08-15 03:44:09
2	David Cawthon	1154	Common Lisp	2020-06-20 14:28:38
3	Tristen MacPherson	3857	Common Lisp	2020-07-19 07:02:58

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1745	F#	2022-05-18 18:57:18
2	Patrick Bahr	2108	F#	2021-02-13 09:29:22
3	Jonas Hartmann Andersen	2994	F#	2020-05-10 13:55:05

#	User	Length	Language	Date
1	Mohamed Ramrami	563	Go	2020-04-23 07:07:37
2	Zia kasyfi	583	Go	2020-07-10 18:09:29
3	Hidden user	593	Go	2021-12-13 22:13:17
4	Aloysius Lee	622	Go	2020-05-05 14:27:42
5	Siyabend Revend	644	Go	2022-02-10 11:31:12
6	Adrianus Vian	645	Go	2020-07-10 18:10:15
7	Ian Howell	685	Go	2020-03-24 21:16:55
8	Jimmy Nejtron	750	Go	2023-01-17 15:10:48
9	Kok Dith	971	Go	2021-07-30 04:21:31
10	Krzysztof Gibuła	1011	Go	2021-08-07 19:34:38

#	User	Length	Language	Date
1	Caleb Surovik	370	Haskell	2021-06-11 19:13:42
2	Zach Tschetter	401	Haskell	2020-10-03 02:48:21
3	Daniel Cabral	432	Haskell	2022-03-03 07:33:03
4	Tomas Möre	443	Haskell	2020-08-03 11:06:31
5	mark24	478	Haskell	2022-09-14 08:10:42
6	Phan Ngọc Tiên	483	Haskell	2022-03-26 06:14:56
7	Andreas Ländle	499	Haskell	2020-05-21 17:26:51
8	Arthur Dent	518	Haskell	2020-07-16 11:51:16
9	Lim Ming Yean	524	Haskell	2020-04-04 11:18:28
10	Oisín Mac Fhearaí	683	Haskell	2021-01-07 21:23:25

#	User	Length	Language	Date
1	Xander McWhorter	443	Java	2020-10-30 13:52:33
2	Lim Ting Kai	527	Java	2023-06-01 10:06:17
3	Lindsay Hong	568	Java	2025-09-24 17:50:05
4	Raymond Arrington	585	Java	2024-09-06 16:16:53
5	Hidden user	586	Java	2022-11-16 08:14:36
6	Hidden user	589	Java	2021-05-01 13:21:37
7	Sabrina Mori	597	Java	2020-04-02 19:12:52
8	Evan Hartnell	600	Java	2020-04-03 18:26:38
9	Hidden user	623	Java	2020-05-27 04:15:16
10	Kristoffer Borgstrøm	628	Java	2020-03-23 16:48:46

#	User	Length	Language	Date
1	Peter Kedemo	646	JavaScript (Node.js)	2020-12-25 22:12:05
2	Howard Tin Chi Chan	701	JavaScript (Node.js)	2021-02-18 21:15:02
3	John Carr	819	JavaScript (Node.js)	2025-01-30 01:06:39
4	Hovhannes Kantuni	866	JavaScript (Node.js)	2020-08-18 20:40:00
5	Tiago Oliveira	883	JavaScript (Node.js)	2020-08-17 19:08:29
6	Đậu Huy Minh	900	JavaScript (Node.js)	2022-10-09 04:54:58
7	Hidden user	948	JavaScript (Node.js)	2022-04-20 18:57:35
8	Jaziel Robin	949	JavaScript (Node.js)	2022-04-14 18:40:58
9	Ali	972	JavaScript (Node.js)	2021-12-16 15:13:28
10	Jeremiah Ang	988	JavaScript (Node.js)	2022-03-25 13:06:51

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	158	JavaScript (SpiderMonkey)	2022-11-09 15:55:19
2	Jimmy Gustafsson	361	JavaScript (SpiderMonkey)	2022-06-15 07:16:34
3	Evan Magill	394	JavaScript (SpiderMonkey)	2024-04-13 02:37:31
4	Bjørn Chr. Soltvedt	429	JavaScript (SpiderMonkey)	2020-03-19 19:29:34
5	Peter Menyes	524	JavaScript (SpiderMonkey)	2020-12-27 16:57:36
6	Andrea Bianchessi	715	JavaScript (SpiderMonkey)	2020-04-09 22:27:48
7	Nicklas Utgaard	965	JavaScript (SpiderMonkey)	2021-01-02 18:44:58

#	User	Length	Language	Date
1	Timothy Gaede	664	Julia	2024-03-31 05:29:43

#	User	Length	Language	Date
1	Emil Eriksmoen Stensland	609	Kotlin	2022-03-08 22:47:01
2	Adam Rankin	612	Kotlin	2023-05-04 05:02:54
3	Einar Kjellback	635	Kotlin	2020-08-11 09:16:23
4	Jacob Huebner	673	Kotlin	2020-05-31 04:07:21
5	Resa Renaldy	733	Kotlin	2020-04-11 08:44:43
6	Troy Warmboe	751	Kotlin	2021-10-08 23:23:23
7	Christian Komusiewicz	806	Kotlin	2020-12-23 19:55:14
8	Hidden user	932	Kotlin	2020-03-23 22:44:56
9	Hidden user	977	Kotlin	2020-05-02 03:29:36
10	Albert Pala	1166	Kotlin	2021-06-29 16:07:14

#	User	Length	Language	Date
1	Matthew Lutze	1125	OCaml	2020-05-10 17:02:49
2	Fredrik Eriksson	1452	OCaml	2024-10-18 17:26:10

#	User	Length	Language	Date
1	Hidden user	1193	Odin	2025-04-29 21:58:25

#	User	Length	Language	Date
1	Ingemar Ragnemalm	854	Pascal	2020-04-02 05:29:51
2	David Connolly	1158	Pascal	2022-04-15 12:15:34

#	User	Length	Language	Date
1	Saito Ta	150	Perl	2024-04-03 08:28:39

#	User	Length	Language	Date
1	Victor Santos	565	PHP	2024-04-17 19:01:39
2	Thomas Marty	619	PHP	2021-01-24 23:53:44
3	Renate Fiala-Lundström	679	PHP	2021-04-19 12:01:02
4	Muhammad Asyraf bin Akop	750	PHP	2022-05-13 07:19:00
5	Andre Wahyudi	989	PHP	2022-09-08 05:17:42
6	Nathã William Sena Soares	1198	PHP	2024-04-24 14:55:45

#	User	Length	Language	Date
1	Hakan Kjellerstrand	454	Prolog	2023-01-28 15:44:05
2	Andriy Zyevakov	2341	Prolog	2024-09-18 10:36:44

#	User	Length	Language	Date
1	Andreas Björklund	249	Python 2	2020-03-29 12:52:06
2	Thomas Feld	260	Python 2	2020-03-25 08:59:31
3	Sigurður Jens Albertsson	267	Python 2	2020-06-06 18:32:55
4	Lars Åström	273	Python 2	2020-03-25 12:35:28
5	Godmar Back	303	Python 2	2020-03-14 18:53:06
6	Johan Lyts	347	Python 2	2020-05-02 12:27:17
7	Shakeel Samsudeen	352	Python 2	2020-06-08 19:01:28
8	sagnik	352	Python 2	2020-09-28 03:48:09
9	Mohamed Elhalees	353	Python 2	2020-04-18 20:55:19
10	Emin Özbek	396	Python 2	2020-07-16 11:10:31

#	User	Length	Language	Date
1	David Worley	133	Python 3	2024-02-22 17:33:01
2	Nguyên Khôi Đỗ	133	Python 3	2025-05-31 12:15:22
3	Lawry Sorenson	142	Python 3	2023-02-17 21:13:16
4	Charles Ancheta	157	Python 3	2023-03-25 07:08:39
5	Joshua Kyle Joyner	160	Python 3	2020-06-28 06:18:15
6	Morten Clausen	160	Python 3	2022-09-25 21:57:50
7	Wouter Dijkstra	166	Python 3	2022-06-19 06:42:00
8	Benjamin Z White	167	Python 3	2023-04-08 13:40:05
9	Ole Vik Lysne	168	Python 3	2026-01-28 17:24:39
10	Miguel Alcaraz Rivera	172	Python 3	2021-11-16 22:59:41

#	User	Length	Language	Date
1	Thomas Feld	101	Ruby	2022-11-03 12:58:54
2	Russell Ng	118	Ruby	2025-06-06 10:25:56
3	Donald Dong	298	Ruby	2021-02-21 05:38:10
4	Jonathan Ogden	302	Ruby	2021-05-26 17:06:00
5	Régis Hanol	305	Ruby	2022-01-07 11:25:22
6	Eugen Neagoe	307	Ruby	2026-01-27 21:24:36
7	TobiasZ	632	Ruby	2022-01-19 18:12:45
8	Gabriel Stanculescu	1144	Ruby	2021-09-26 11:42:48
9	Jia Wei Lee	3453	Ruby	2020-04-28 13:54:59

#	User	Length	Language	Date
1	Vincent Lagerros	438	Rust	2025-01-02 00:11:36
2	Pankajkumar Patro	615	Rust	2024-10-06 16:26:24
3	Hovig Manjikian	642	Rust	2020-04-02 18:57:59
4	Andriy Semenistiy	752	Rust	2021-02-12 22:18:08
5	Emil Dichmann	978	Rust	2025-09-02 19:29:23
6	Bas Dirks	1032	Rust	2022-01-03 13:37:51
7	Henry Jayakusuma	1036	Rust	2020-05-31 03:46:08
8	Eric Pinter	1170	Rust	2020-08-17 06:33:31
9	Qwmy	1225	Rust	2022-09-26 12:50:17
10	Anton Golov	1249	Rust	2021-10-27 19:37:27

Solution running time distribution