Problem A
Bus — Problem Statistics

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Submissions	6778
Accepted submissions	3718
Submission ratio	54.85%
Authors	3609
Full solves [?]	3364
Full solve Ratio	93.21%

#	User	Runtime	Language	Date
1	Sebastian Banert	0.00 s	Ada	2024-10-16 22:55:40

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	APL	2023-04-25 13:33:18

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	Bash	2023-09-12 15:17:06
2	Danny Robinson	0.01 s	Bash	2023-09-12 16:20:54
3	Chenzhang Hu	0.03 s	Bash	2023-09-06 07:09:33

#	User	Runtime	Language	Date
1	Robert Low	0.01 s	C#	2016-07-16 23:45:26
2	Kunwei Zhang	0.01 s	C#	2018-02-15 05:03:58
3	Shafigh Bahamin	0.01 s	C#	2018-04-07 03:33:06
4	Niklas Huss	0.02 s	C#	2015-09-13 16:36:12
5	Jens Mossig	0.02 s	C#	2015-10-23 08:44:04
6	Karthik Nagarajan	0.02 s	C#	2015-10-27 18:02:28
7	Kalyan Balla	0.02 s	C#	2015-11-10 23:31:19
8	Andriy Zyevakov	0.02 s	C#	2015-11-13 15:16:53
9	Raja Sanjeev Kumar Nakka	0.02 s	C#	2016-05-10 16:46:00
10	Ugnius Skučas	0.02 s	C#	2016-10-12 19:10:50

#	User	Runtime	Language	Date
1	Brandon Mitchell	0.00 s	COBOL	2020-04-05 22:46:23

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-06-14 18:14:25
2	Patrick Bahr	0.04 s	F#	2021-02-20 16:15:59

#	User	Runtime	Language	Date
1	Jordan H	0.00 s	Go	2025-04-10 10:04:06
2	Alejandro Germain	0.02 s	Go	2018-10-07 17:34:20
3	My Name	0.02 s	Go	2018-10-31 09:50:35
4	Markus Takalo	0.02 s	Go	2019-05-05 11:28:54
5	Krzysztof Gibuła	0.07 s	Go	2019-03-17 14:19:31
6	Norbert Voelker	0.07 s	Go	2021-04-11 20:40:42
7	Albert Rise Nielsen	0.07 s	Go	2021-08-31 16:05:31
8	Merih Bora Poçan	0.08 s	Go	2022-02-22 20:56:08

#	User	Runtime	Language	Date
1	Rene Argento	0.04 s	Java	2025-03-28 02:33:20
2	Hidden user	0.05 s	Java	2015-09-21 07:26:23
3	Marco Vincenzo Karaan	0.05 s	Java	2015-09-29 14:39:07
4	Luu Nhat Phi	0.05 s	Java	2015-09-29 14:50:33
5	Dennis Ang	0.05 s	Java	2015-10-01 14:05:56
6	Pål Forsberg	0.05 s	Java	2015-10-03 13:39:23
7	Eskil Jarlskog	0.05 s	Java	2015-10-07 12:12:06
8	AJ Johnson	0.05 s	Java	2015-11-12 03:05:00
9	Veniamin Viflyantsev	0.05 s	Java	2015-12-05 13:15:25
10	Dennis Shi	0.05 s	Java	2015-12-29 19:21:33

#	User	Runtime	Language	Date
1	Sander Hellesø	0.05 s	JavaScript (Node.js)	2019-05-04 22:22:04
2	Juthi Sarker Aka	0.05 s	JavaScript (Node.js)	2025-05-21 19:56:43
3	Chris Wong	0.41 s	JavaScript (Node.js)	2021-02-03 23:35:11
4	Dennis Muthuri	0.41 s	JavaScript (Node.js)	2021-04-21 15:46:58
5	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-08 20:13:20
6	Hovhannes Kantuni	0.42 s	JavaScript (Node.js)	2020-12-30 03:11:37
7	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-01-30 11:18:25
8	John	0.42 s	JavaScript (Node.js)	2021-02-25 12:33:10
9	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-09-18 18:40:53
10	Niamh Limerick	0.42 s	JavaScript (Node.js)	2022-01-25 01:16:49

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-01-18 22:11:34
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-23 19:17:49
3	Peter Menyes	0.01 s	JavaScript (SpiderMonkey)	2017-08-28 10:25:02
4	Zachary DeStefano	0.01 s	JavaScript (SpiderMonkey)	2018-01-23 05:41:23
5	Nguyễn Hùng Cường	0.02 s	JavaScript (SpiderMonkey)	2018-07-30 10:51:49
6	Nicklas Utgaard	0.02 s	JavaScript (SpiderMonkey)	2021-04-18 19:40:31
7	Alexander Vestin	0.02 s	JavaScript (SpiderMonkey)	2022-10-16 13:12:52
8	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2022-11-13 02:34:03
9	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-06-16 22:51:53
10	Ali Ber	0.03 s	JavaScript (SpiderMonkey)	2019-12-13 00:31:16

#	User	Runtime	Language	Date
1	Danny Robinson	0.41 s	Julia	2023-06-22 00:18:51
2	Timothy Gaede	0.60 s	Julia	2024-03-28 01:20:08

#	User	Runtime	Language	Date
1	Albert Pala	0.11 s	Kotlin	2021-06-29 12:17:41
2	Dayan Ruben Gonzalez	0.14 s	Kotlin	2020-09-27 23:18:02
3	Sebastian Sternberg	0.17 s	Kotlin	2021-08-19 13:08:38
4	Adam Rankin	0.18 s	Kotlin	2023-04-22 19:45:38
5	Neil Harmon	0.19 s	Kotlin	2019-05-03 09:42:52
6	Jonathan Soo	0.20 s	Kotlin	2019-08-01 16:20:21
7	Dmitry Shostak	0.20 s	Kotlin	2019-08-30 07:43:27
8	Einar Kjellback	0.20 s	Kotlin	2019-12-13 15:53:31
9	Phường Lên	0.20 s	Kotlin	2020-04-14 19:54:23
10	Karl Johan Heimark	0.20 s	Kotlin	2024-11-27 20:38:23

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-06-10 21:18:56

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-09-14 23:13:26
2	David Connolly	0.00 s	Pascal	2022-07-04 14:23:18

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.08 s	Perl	2025-09-14 12:19:34

#	User	Runtime	Language	Date
1	George Broadley	0.01 s	PHP	2017-02-26 19:03:42
2	cojonas1	0.01 s	PHP	2021-04-07 16:34:47
3	Petr Trofimov	0.01 s	PHP	2021-04-23 11:44:48
4	Renate	0.01 s	PHP	2021-05-10 21:18:59
5	Ilyas Mohetna	0.01 s	PHP	2022-11-19 17:26:44
6	Andre Wahyudi	0.01 s	PHP	2023-03-14 05:29:32

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-04 10:51:23

#	User	Runtime	Language	Date
1	Tore Norderud	0.02 s	Python 2	2015-09-21 02:48:12
2	Christofer Ohlsson	0.02 s	Python 2	2015-09-29 14:07:29
3	Arne Tobias Malkenes Ødegaard	0.02 s	Python 2	2015-10-01 17:47:35
4	Nick Wu	0.02 s	Python 2	2015-10-04 02:51:22
5	Hans Rusten	0.02 s	Python 2	2015-10-20 15:48:44
6	Oskar Haarklou Veileborg	0.02 s	Python 2	2015-10-28 12:36:46
7	Urban Pettersson	0.02 s	Python 2	2015-10-29 20:56:07
8	Asger Hautop Drewsen	0.02 s	Python 2	2015-11-03 21:21:38
9	Nobleman Chukwu	0.02 s	Python 2	2015-11-12 21:43:42
10	Scott Handelman	0.02 s	Python 2	2016-04-19 07:28:23

#	User	Runtime	Language	Date
1	Johannes Agestam	0.02 s	Python 3	2015-09-08 17:57:44
2	Nils Gustafsson	0.02 s	Python 3	2015-09-08 18:01:42
3	Mattis Kancans Envall	0.02 s	Python 3	2015-09-08 18:37:59
4	Brandon Morris	0.02 s	Python 3	2015-09-30 01:32:00
5	John Harrison	0.02 s	Python 3	2015-09-30 01:38:22
6	Victor Zheng	0.02 s	Python 3	2015-10-04 03:51:03
7	Blake Hyde	0.02 s	Python 3	2015-10-05 05:23:32
8	Emil Riis Hansen	0.02 s	Python 3	2015-10-19 17:51:50
9	Maran	0.02 s	Python 3	2015-10-21 09:24:38
10	Frederik Højholt	0.02 s	Python 3	2015-10-23 11:46:28

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-02-27 01:43:38
2	Lasse Berglund	0.03 s	Ruby	2016-04-15 09:48:05
3	Leonardo Brito	0.03 s	Ruby	2016-06-25 01:35:39
4	Stian Fredrikstad	0.03 s	Ruby	2017-11-09 21:22:55
5	Hidden user	0.05 s	Ruby	2020-11-18 23:55:16
6	Hadi Qovaizi	0.05 s	Ruby	2021-06-14 21:28:44
7	Régis Hanol	0.05 s	Ruby	2022-01-11 14:59:44
8	Thomas Feld	0.06 s	Ruby	2022-11-09 13:59:50
9	Noah Hessen Bjerke	0.06 s	Ruby	2022-11-30 18:07:28
10	dick move	0.06 s	Ruby	2022-12-06 22:33:40

#	User	Runtime	Language	Date
1	Theodor Kier	0.05 s	TypeScript	2023-10-06 17:28:00

#	User	Length	Language	Date
1	Sebastian Banert	237	Ada	2024-10-16 22:55:40

#	User	Length	Language	Date
1	Thomas Feld	24	APL	2023-04-25 13:33:18

#	User	Length	Language	Date
1	Chenzhang Hu	18	Bash	2025-09-13 03:59:07
2	Thomas Feld	18	Bash	2025-09-15 14:58:50
3	Danny Robinson	24	Bash	2023-09-12 16:20:54

#	User	Length	Language	Date
1	Martin Blom	82	C	2023-12-29 12:50:20
2	William Gan	83	C	2017-02-22 12:59:19
3	a_b__c	122	C	2021-01-26 08:02:43
4	Chu Quoc Quan	140	C	2016-07-26 11:52:16
5	Rosy Sung	143	C	2020-11-05 18:19:43
6	Emil Hultcrantz	158	C	2022-11-22 21:19:02
7	Divya Sri Bevara	159	C	2019-10-21 07:22:03
8	Raymond Yang	160	C	2021-07-25 02:18:08
9	Suresh Babu Avula	162	C	2016-09-23 23:36:08
10	Abdellah Rami	166	C	2017-12-10 22:46:38

#	User	Length	Language	Date
1	Gregory Sinclair	119	C#	2024-02-17 19:16:20
2	Esty Crow	229	C#	2023-11-26 02:48:00
3	Anthony Ye	229	C#	2023-11-26 18:50:35
4	Robert Slutsky	251	C#	2017-06-22 22:17:40
5	Kunwei Zhang	269	C#	2018-02-15 05:03:58
6	Maxence Roy	273	C#	2020-05-06 21:23:10
7	Jesper Lundin	354	C#	2021-09-22 15:22:47
8	Robert Low	357	C#	2016-07-16 23:45:26
9	Frian Tampake	361	C#	2023-03-21 08:45:34
10	Vicky Irmawan	363	C#	2020-07-22 08:42:48

#	User	Length	Language	Date
1	Evan Magill	107	C++	2024-02-15 03:51:00
2	Antonio Molina Lovett	144	C++	2016-08-06 21:37:44
3	Johan Wind	154	C++	2016-08-10 17:48:16
4	Yeung Man Tsung	154	C++	2022-11-18 10:57:28
5	Spock Tsai	158	C++	2015-10-06 09:02:36
6	Syx Pek	161	C++	2015-12-16 16:41:06
7	Anthony Wong	161	C++	2017-11-09 02:18:45
8	Herman Karlsson	162	C++	2015-09-08 17:47:30
9	Nicole Hedblom	162	C++	2015-09-25 13:21:20
10	Moeez Muhammad	162	C++	2022-12-19 03:02:45

#	User	Length	Language	Date
1	Brandon Mitchell	464	COBOL	2020-04-05 22:46:23

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	160	F#	2022-06-14 18:14:25
2	Patrick Bahr	1890	F#	2021-02-20 16:15:59

#	User	Length	Language	Date
1	Alejandro Germain	193	Go	2018-10-07 17:34:20
2	Jordan H	261	Go	2025-04-10 10:04:06
3	Merih Bora Poçan	327	Go	2022-02-22 20:56:08
4	Krzysztof Gibuła	351	Go	2019-03-17 14:19:31
5	Norbert Voelker	444	Go	2021-04-11 20:40:42
6	Albert Rise Nielsen	561	Go	2021-08-31 16:05:31
7	My Name	661	Go	2018-10-31 09:50:35
8	Markus Takalo	857	Go	2019-05-05 11:28:54

#	User	Length	Language	Date
1	Emil Hultcrantz	74	Haskell	2022-11-22 02:17:15
2	Jahid Hasan Imon	98	Haskell	2020-09-18 14:18:57
3	Jahid Hasan	106	Haskell	2020-09-18 14:12:00
4	Sebastian Banert	107	Haskell	2023-05-20 20:39:21
5	Lars Tveito	115	Haskell	2015-09-22 18:36:45
6	Håkon Flatval	129	Haskell	2018-08-20 22:51:40
7	Peter Deal	141	Haskell	2016-05-15 17:03:38
8	Steinar Simonnes	143	Haskell	2023-09-30 23:22:03
9	Martin Jackson	150	Haskell	2017-04-12 01:18:28
10	Miguel Müller	158	Haskell	2017-11-16 15:20:17

#	User	Length	Language	Date
1	Antonio Ramos	242	Java	2017-09-30 19:08:29
2	Aung Kyaw	245	Java	2019-10-10 07:42:53
3	Mouhssine Assaoud	252	Java	2016-10-17 04:21:39
4	Jan Bananberg	254	Java	2015-10-27 08:21:49
5	Raymond Arrington	258	Java	2024-06-20 07:06:20
6	Soufian El Yadmani	267	Java	2016-08-06 22:56:58
7	Joseph Klawinski	272	Java	2018-10-11 23:07:42
8	Dỗn Lùng	272	Java	2018-10-27 14:01:23
9	Eric Zhong	276	Java	2020-01-23 21:59:02
10	tabgha mouad	278	Java	2019-12-12 21:45:33

#	User	Length	Language	Date
1	Dennis Muthuri	424	JavaScript (Node.js)	2021-04-21 15:46:58
2	Khin Nyunt	436	JavaScript (Node.js)	2021-09-18 18:40:53
3	Hovhannes Kantuni	467	JavaScript (Node.js)	2020-12-30 03:11:37
4	Howard Tin Chi Chan	483	JavaScript (Node.js)	2021-01-30 11:18:25
5	Juthi Sarker Aka	599	JavaScript (Node.js)	2025-05-21 19:56:43
6	Sander Hellesø	669	JavaScript (Node.js)	2019-05-04 22:22:04
7	Niamh Limerick	829	JavaScript (Node.js)	2022-01-25 01:16:49
8	Andoko Chandra	956	JavaScript (Node.js)	2020-10-08 20:13:20
9	Chris Wong	969	JavaScript (Node.js)	2021-02-03 23:35:11
10	John	1041	JavaScript (Node.js)	2021-02-25 12:33:10

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	40	JavaScript (SpiderMonkey)	2022-11-13 02:34:03
2	Jimmy Gustafsson	43	JavaScript (SpiderMonkey)	2024-06-16 22:51:53
3	Bjørn Chr. Soltvedt	72	JavaScript (SpiderMonkey)	2016-01-23 19:17:49
4	Nguyễn Hùng Cường	75	JavaScript (SpiderMonkey)	2018-07-30 10:51:49
5	Peter Menyes	176	JavaScript (SpiderMonkey)	2017-08-28 10:25:02
6	Zachary DeStefano	176	JavaScript (SpiderMonkey)	2018-01-23 05:41:23
7	Ali Ber	185	JavaScript (SpiderMonkey)	2019-12-13 00:31:16
8	Alexander Vestin	231	JavaScript (SpiderMonkey)	2022-10-16 13:12:52
9	Nicklas Utgaard	428	JavaScript (SpiderMonkey)	2021-04-18 19:40:31
10	Peter Kedemo	604	JavaScript (SpiderMonkey)	2016-01-18 22:11:34

#	User	Length	Language	Date
1	Danny Robinson	56	Julia	2023-06-22 01:22:15
2	Timothy Gaede	219	Julia	2024-03-28 01:20:08

#	User	Length	Language	Date
1	Dmitry Shostak	169	Kotlin	2019-08-30 07:43:27
2	Troy Warmboe	187	Kotlin	2020-02-11 19:13:57
3	Phường Lên	194	Kotlin	2020-04-14 19:54:23
4	Einar Kjellback	213	Kotlin	2019-12-13 15:53:31
5	Karl Johan Heimark	219	Kotlin	2024-11-27 20:38:23
6	Sebastian Sternberg	312	Kotlin	2021-08-19 13:08:38
7	Adam Rankin	312	Kotlin	2023-04-22 19:45:38
8	Dayan Ruben Gonzalez	326	Kotlin	2020-09-27 23:18:02
9	Ali M. Nekoh	383	Kotlin	2025-05-21 09:07:58
10	Ola Sundell	632	Kotlin	2019-11-22 10:44:25

#	User	Length	Language	Date
1	Hidden user	481	Odin	2025-06-10 21:18:56

#	User	Length	Language	Date
1	Ingemar Ragnemalm	154	Pascal	2017-09-14 23:13:26
2	David Connolly	203	Pascal	2022-07-04 14:23:18

#	User	Length	Language	Date
1	Chenzhang Hu	6	Perl	2025-09-14 12:19:34

#	User	Length	Language	Date
1	Renate	265	PHP	2021-05-10 21:18:59
2	cojonas1	279	PHP	2021-04-07 16:34:47
3	George Broadley	314	PHP	2017-02-26 19:03:42
4	Petr Trofimov	318	PHP	2021-04-23 11:44:48
5	Ilyas Mohetna	344	PHP	2022-11-19 17:26:44
6	Andre Wahyudi	434	PHP	2023-03-14 05:29:32

#	User	Length	Language	Date
1	Hakan Kjellerstrand	175	Prolog	2023-02-04 10:51:23

#	User	Length	Language	Date
1	Andreas Eisele	50	Python 2	2018-10-30 22:18:20
2	Guan Yang Ze	53	Python 2	2019-08-27 16:40:26
3	Thomas Feld	55	Python 2	2019-08-20 11:15:34
4	Catalin Popa	63	Python 2	2018-12-12 17:53:20
5	Garðar Ingvarsson	66	Python 2	2019-04-23 04:48:43
6	Çağdaş Öztekin	69	Python 2	2017-09-05 10:06:23
7	Daði Guð	72	Python 2	2017-04-26 02:33:52
8	Hasan Ramezani	74	Python 2	2016-07-09 11:37:57
9	Nobleman Chukwu	77	Python 2	2015-11-12 21:43:42
10	Arne Tobias Malkenes Ødegaard	79	Python 2	2015-10-01 17:47:35

#	User	Length	Language	Date
1	Morten Clausen	41	Python 3	2022-10-03 13:07:42
2	Benjamin Z White	41	Python 3	2023-04-19 11:56:33
3	Clement Oh	41	Python 3	2023-06-13 14:25:57
4	Hidden user	45	Python 3	2022-12-09 23:33:43
5	Sebastian Boldsen Jakobsen	49	Python 3	2022-10-09 00:39:47
6	Adam Levav	49	Python 3	2023-01-24 21:10:15
7	Alexandre Charland	49	Python 3	2024-08-24 04:22:42
8	Hugo Morvan	50	Python 3	2022-11-27 19:54:55
9	Josh Henderson	50	Python 3	2022-12-06 00:50:17
10	Nguyễn Đinh Hồng Phúc	53	Python 3	2022-02-27 10:20:11

#	User	Length	Language	Date
1	dick move	19	Ruby	2022-12-06 22:33:40
2	Thomas Feld	20	Ruby	2025-09-15 15:00:01
3	Gustav Elmqvist	29	Ruby	2023-03-05 22:17:17
4	Noah Hessen Bjerke	33	Ruby	2022-11-30 18:09:39
5	Hidden user	34	Ruby	2020-11-18 23:55:16
6	Alexandre Douard	38	Ruby	2023-09-04 14:12:17
7	Régis Hanol	48	Ruby	2022-01-11 14:59:44
8	Eugen Neagoe	75	Ruby	2023-04-06 23:15:38
9	Lasse Berglund	82	Ruby	2016-04-15 09:48:05
10	Stian Fredrikstad	88	Ruby	2017-11-09 21:22:55

#	User	Length	Language	Date
1	Vincent Lagerros	217	Rust	2025-02-13 22:52:20
2	Adam Gausmann	251	Rust	2019-10-04 22:28:51
3	Bas Dirks	269	Rust	2021-12-31 11:25:33
4	Thomas	318	Rust	2023-08-11 21:22:29
5	Freek van Keulen	338	Rust	2021-07-13 21:35:40
6	Isak Jägberg	413	Rust	2021-05-05 16:15:40
7	Pankajkumar Patro	428	Rust	2024-07-31 22:10:18
8	Anthony Buchholz	457	Rust	2023-05-23 22:45:03
9	David Rasch	480	Rust	2021-01-14 17:08:31
10	Kok Dith	484	Rust	2021-08-04 04:05:11

#	User	Length	Language	Date
1	Theodor Kier	330	TypeScript	2023-10-06 17:28:00

Solution running time distribution