Problem A
Driver's Dilemma — Problem Statistics

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Submissions	1418
Accepted submissions	697
Submission ratio	49.15%
Authors	677
Full solves [?]	620
Full solve Ratio	91.58%

#	User	Runtime	Language	Date
1	Gurpartap Singh Bhatti	0.02 s	C#	2019-09-03 01:55:16
2	Thomas Norris	0.02 s	C#	2019-11-07 20:48:07
3	Mikael Fiala-Lundström	0.03 s	C#	2021-06-01 00:48:34
4	Göran Andersson	0.03 s	C#	2022-05-19 20:39:08
5	Michael Damsgaard	0.06 s	C#	2024-12-29 06:01:55

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-06-28 21:04:28
2	Hidden user	0.02 s	Common Lisp	2019-06-12 02:48:20

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-05-25 14:42:21

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2025-07-08 12:26:16
2	Brent Yorgey	0.01 s	Haskell	2018-10-17 19:43:34
3	Hidden user	0.01 s	Haskell	2019-08-25 22:20:47
4	Intrets	0.01 s	Haskell	2019-08-28 10:58:38
5	Jan Hrček	0.01 s	Haskell	2021-03-20 09:09:06

#	User	Runtime	Language	Date
1	Finn Lidbetter	0.05 s	Java	2018-10-17 16:11:26
2	Anh Mai Le Xuan	0.05 s	Java	2018-10-21 19:15:14
3	James Black	0.05 s	Java	2018-10-22 19:49:27
4	Kyle Kelly	0.05 s	Java	2018-11-01 12:08:32
5	Bjørn Dons	0.05 s	Java	2018-12-09 21:35:55
6	Tarek	0.05 s	Java	2025-10-23 04:28:57
7	Anish Kambhampati	0.06 s	Java	2022-01-13 19:52:48
8	Sven Rönnbäck	0.06 s	Java	2022-12-06 19:00:51
9	Taras Romanyuk	0.06 s	Java	2024-12-12 20:39:56
10	CUX "INDIO" PRADA	0.06 s	Java	2025-01-12 13:03:56

#	User	Runtime	Language	Date
1	Samuel Högfeldt	0.08 s	JavaScript (Node.js)	2022-08-27 13:31:17
2	Peter Kedemo	0.42 s	JavaScript (Node.js)	2020-01-06 14:03:33
3	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-24 20:17:24

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2018-10-23 01:13:47
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-07 13:54:14

#	User	Runtime	Language	Date
1	Timothy Gaede	0.57 s	Julia	2024-05-03 07:50:15

#	User	Runtime	Language	Date
1	Hidden user	0.11 s	Kotlin	2020-04-27 07:00:05
2	Adam Rankin	0.19 s	Kotlin	2023-08-30 20:18:49
3	Neil Harmon	0.20 s	Kotlin	2019-09-03 12:47:42
4	Martijn Muijsers	0.20 s	Kotlin	2024-06-12 10:20:41
5	Troy Warmboe	0.23 s	Kotlin	2020-02-20 23:47:40

#	User	Runtime	Language	Date
1	Brandon Tang	0.00 s	OCaml	2023-07-15 09:01:12

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-07-07 18:01:08

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2019-05-03 13:16:31

#	User	Runtime	Language	Date
1	Justin Wamback	0.03 s	Python 2	2018-10-12 19:25:34
2	Haochen Chen	0.03 s	Python 2	2018-10-21 23:00:37
3	Jesper Öqvist	0.03 s	Python 2	2018-10-24 23:13:25
4	Hermon Mulat	0.03 s	Python 2	2018-12-04 23:26:23
5	Johann Ly	0.03 s	Python 2	2019-02-02 23:08:25
6	Johan Lyts	0.03 s	Python 2	2019-08-07 21:18:18
7	Thomas Feld	0.03 s	Python 2	2019-09-03 14:45:19
8	Lars Åström	0.03 s	Python 2	2019-11-13 22:09:53
9	Andreas Björklund	0.03 s	Python 2	2020-04-26 15:56:52
10	Yanmarshus Bachtiar	0.04 s	Python 2	2019-10-30 05:41:32

#	User	Runtime	Language	Date
1	Graeme Zinck	0.02 s	Python 3	2018-10-12 17:58:43
2	Jean-François Laplante	0.02 s	Python 3	2018-10-12 18:11:56
3	Darwin Groskleg	0.02 s	Python 3	2018-10-12 19:15:24
4	Martin van Bommel	0.02 s	Python 3	2018-10-13 16:43:06
5	Johan Wind	0.02 s	Python 3	2018-10-18 14:04:28
6	Zach Strong	0.02 s	Python 3	2018-10-19 01:03:47
7	Kasra Ghodsi	0.02 s	Python 3	2018-10-19 04:07:37
8	Isaac Lee	0.02 s	Python 3	2018-10-19 21:31:59
9	Jon Lee	0.02 s	Python 3	2018-10-21 19:47:42
10	Keegan Poon	0.02 s	Python 3	2018-10-21 19:48:20

#	User	Runtime	Language	Date
1	Kok Dith	0.05 s	Ruby	2021-09-08 03:30:23
2	Thomas Feld	0.06 s	Ruby	2023-05-03 10:18:35
3	Alexander Bilde Pedersen	0.06 s	Ruby	2023-09-19 13:46:01
4	Russell Ng	0.07 s	Ruby	2025-05-28 19:59:04

#	User	Runtime	Language	Date
1	Alex	0.00 s	Rust	2020-11-14 15:51:14
2	Bas Dirks	0.00 s	Rust	2022-01-08 19:14:10

#	User	Length	Language	Date
1	Sambit Palit	343	C	2020-09-16 02:02:41
2	Filip Hovorka	446	C	2020-10-17 00:27:04
3	Andrew Roberts	463	C	2019-06-05 00:11:40
4	PhilCampbell	544	C	2021-02-23 10:02:25
5	Leslie Yip	569	C	2022-09-08 15:39:39
6	Ashley Hunt	625	C	2020-11-13 21:27:45
7	Mirel Cosulschi	641	C	2024-11-07 22:47:31
8	Yizhi Hu	715	C	2018-11-03 02:28:07
9	Naveen Kumar S	1101	C	2025-04-27 04:40:43
10	Bergur Snorrason	1716	C	2020-11-10 10:35:31

#	User	Length	Language	Date
1	Michael Damsgaard	625	C#	2024-12-29 06:06:24
2	Thomas Norris	657	C#	2019-11-07 20:48:07
3	Göran Andersson	931	C#	2022-05-19 20:39:08
4	Gurpartap Singh Bhatti	1910	C#	2019-09-03 01:55:16
5	Mikael Fiala-Lundström	3343	C#	2021-06-01 00:48:34

#	User	Length	Language	Date
1	Tyler Fernando	161	C++	2022-11-09 03:06:45
2	Subramanian Ramasamy	283	C++	2022-10-11 10:09:37
3	Hidden user	317	C++	2021-02-27 03:30:04
4	Hoang Trong Tan	362	C++	2022-12-02 06:27:20
5	Hidden user	368	C++	2024-12-08 23:36:30
6	Shafquat Mahbub	370	C++	2020-07-21 21:52:07
7	Martin Brandalisi	370	C++	2024-06-01 05:52:01
8	Atli Fannar Franklín	378	C++	2020-03-01 14:11:58
9	Austin Fernandez	383	C++	2019-08-24 22:51:28
10	Hidden user	387	C++	2022-12-13 17:15:04

#	User	Length	Language	Date
1	David Cawthon	666	Common Lisp	2020-06-28 21:04:28
2	Hidden user	772	Common Lisp	2019-06-12 02:48:20

#	User	Length	Language	Date
1	Norbert Voelker	909	Go	2021-05-25 14:42:21

#	User	Length	Language	Date
1	Steinar Simonnes	399	Haskell	2025-07-08 12:26:16
2	Hidden user	683	Haskell	2019-08-25 22:20:47
3	Jan Hrček	986	Haskell	2021-03-20 09:17:48
4	Brent Yorgey	1242	Haskell	2018-10-17 19:43:34
5	Intrets	1703	Haskell	2019-08-28 10:58:38

#	User	Length	Language	Date
1	LovetheFrogs	532	Java	2023-07-25 22:29:21
2	Joshua Coward	611	Java	2019-09-06 06:02:39
3	Ali Pervaiz	613	Java	2019-03-19 22:02:47
4	Caeden Whitaker	617	Java	2020-07-27 17:08:46
5	Nathan Nguyen	629	Java	2020-09-02 23:30:57
6	Eric Leow Yu Quan	664	Java	2020-12-12 07:47:54
7	Morgan K Bender	667	Java	2018-10-12 18:30:31
8	Marcus Der	670	Java	2020-11-02 01:01:15
9	Doug Goodman	709	Java	2018-12-04 17:01:09
10	Rija Ali	716	Java	2018-10-19 00:24:19

#	User	Length	Language	Date
1	Peter Kedemo	731	JavaScript (Node.js)	2020-01-06 14:03:33
2	Samuel Högfeldt	843	JavaScript (Node.js)	2022-08-27 13:31:17
3	Andoko Chandra	970	JavaScript (Node.js)	2020-10-24 20:17:24

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	267	JavaScript (SpiderMonkey)	2018-10-23 01:13:47
2	Christian Pilegaard Cederquist	376	JavaScript (SpiderMonkey)	2023-02-07 13:54:14

#	User	Length	Language	Date
1	Timothy Gaede	387	Julia	2024-05-03 07:50:15

#	User	Length	Language	Date
1	Adam Rankin	578	Kotlin	2023-08-30 20:18:49
2	Troy Warmboe	776	Kotlin	2020-02-20 23:47:40
3	Hidden user	987	Kotlin	2020-04-27 07:00:05
4	Martijn Muijsers	1075	Kotlin	2024-06-12 10:20:41
5	Neil Harmon	1081	Kotlin	2019-09-03 12:47:42

#	User	Length	Language	Date
1	Brandon Tang	483	OCaml	2023-07-15 09:01:12

#	User	Length	Language	Date
1	Ingemar Ragnemalm	711	Pascal	2019-07-07 18:01:08

#	User	Length	Language	Date
1	Andriy Zyevakov	893	Prolog	2019-05-03 13:16:31

#	User	Length	Language	Date
1	Thomas Feld	180	Python 2	2019-09-03 14:45:19
2	Andreas Björklund	217	Python 2	2020-04-26 15:56:52
3	Lars Åström	225	Python 2	2019-11-13 22:09:53
4	Jesper Öqvist	265	Python 2	2018-10-24 23:13:25
5	Johan Lyts	302	Python 2	2019-08-07 21:18:18
6	Haochen Chen	343	Python 2	2018-10-21 23:00:37
7	Yanmarshus Bachtiar	352	Python 2	2019-10-30 05:41:32
8	Hermon Mulat	392	Python 2	2018-12-04 23:26:23
9	Justin Wamback	526	Python 2	2018-10-12 19:25:34
10	Johann Ly	675	Python 2	2019-02-02 23:31:34

#	User	Length	Language	Date
1	Thibault Raffaillac	121	Python 3	2024-08-02 23:58:55
2	Nguyên Khôi Đỗ	141	Python 3	2025-01-06 20:06:27
3	Casper Rysgaard	160	Python 3	2023-01-11 13:18:22
4	Ahmed Chamseddine	167	Python 3	2024-08-20 20:51:27
5	Farzam Abrishami	180	Python 3	2024-01-21 13:04:37
6	Charles Ancheta	195	Python 3	2023-03-25 23:41:37
7	Timothy White	197	Python 3	2024-05-23 23:53:57
8	Tai Tze Kin	201	Python 3	2024-05-08 12:24:31
9	Evelyn Huerta	201	Python 3	2025-04-27 20:37:08
10	Jason Clarke	208	Python 3	2024-02-17 22:47:38

#	User	Length	Language	Date
1	Thomas Feld	92	Ruby	2023-05-03 10:25:55
2	Russell Ng	108	Ruby	2025-05-28 19:59:04
3	Alexander Bilde Pedersen	215	Ruby	2023-09-19 13:46:01
4	Kok Dith	222	Ruby	2021-09-08 03:30:23

#	User	Length	Language	Date
1	Bas Dirks	932	Rust	2022-01-08 19:14:10
2	Alex	1599	Rust	2020-11-14 15:51:14

Solution running time distribution