Problem A
Happy Trails — Problem Statistics

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Submissions	278
Accepted submissions	155
Submission ratio	55.76%
Authors	133
Full solves [?]	129
Full solve Ratio	96.99%

#	User	Runtime	Language	Date
1	Liampisan Nipat	0.00 s	C	2017-11-16 12:29:43
2	Jerome Fietz	0.00 s	C	2017-11-16 12:32:39
3	Dan Suwanseree	0.00 s	C	2017-11-16 13:25:33
4	Esther Chong	0.00 s	C	2017-11-17 15:35:26

#	User	Runtime	Language	Date
1	Deci Bel	0.05 s	C#	2026-02-28 18:09:04

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	Go	2017-11-05 02:46:46

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2017-11-07 06:57:21
2	Steinar Simonnes	0.00 s	Haskell	2025-08-24 08:52:21

#	User	Runtime	Language	Date
1	Thomas Anung Basuki	0.09 s	Java	2026-01-02 09:35:50
2	Steven Cheng	0.10 s	Java	2017-11-18 06:04:20
3	Hunter Mullen	0.10 s	Java	2025-08-20 04:31:09
4	Ali Koer	0.11 s	Java	2017-11-17 04:45:27
5	Ali Gürkan Köroglu	0.11 s	Java	2017-11-17 04:45:44
6	Marco Troltsch	0.12 s	Java	2017-11-16 12:58:14
7	Benedikt Nork	0.12 s	Java	2017-11-16 13:14:06
8	Trung Quan Tong Dam	0.13 s	Java	2017-11-15 00:51:52
9	Philipp Rothaug	0.13 s	Java	2017-11-16 12:24:25
10	Lutz Steinhilber	0.13 s	Java	2017-11-16 12:28:05

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2017-11-05 00:24:44
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2025-08-21 12:57:18
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2025-09-18 09:53:29

#	User	Runtime	Language	Date
1	Timothy Gaede	0.86 s	Julia	2025-08-13 17:59:57

#	User	Runtime	Language	Date
1	Слава Гуляев	0.24 s	Kotlin	2017-11-06 01:19:05
2	Adam Rankin	0.25 s	Kotlin	2026-01-16 05:35:37

#	User	Runtime	Language	Date
1	Neal Zane	0.03 s	Python 2	2017-11-07 08:24:03
2	Christofer Ohlsson	0.03 s	Python 2	2017-11-11 12:36:27

#	User	Runtime	Language	Date
1	Erik Rydbert	0.02 s	Python 3	2017-11-14 10:22:49
2	Tawan Thampipattanakul	0.02 s	Python 3	2017-11-16 13:25:22
3	Warakorn Jetlohasiri	0.02 s	Python 3	2017-11-16 13:36:26
4	Andrew McGehee	0.03 s	Python 3	2017-11-05 22:38:29
5	Matthew Oakley	0.03 s	Python 3	2017-11-14 18:18:38
6	seppanz	0.03 s	Python 3	2017-11-16 13:03:55
7	Thossakrai Nakkasem	0.03 s	Python 3	2017-11-16 13:33:51
8	Dhitiwat Jongsuebchoke	0.03 s	Python 3	2017-11-16 15:14:35
9	Ahmed Chamseddine	0.04 s	Python 3	2025-08-13 16:39:57
10	Sugerman	0.04 s	Python 3	2025-08-14 15:39:32

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2025-08-22 13:51:34

#	User	Runtime	Language	Date
1	Pankajkumar Patro	0.00 s	Rust	2025-08-28 18:35:42
2	Jiaye Will Wang	0.00 s	Rust	2025-09-09 05:04:10
3	August Lind	0.00 s	Rust	2025-12-27 00:05:41

#	User	Length	Language	Date
1	Esther Chong	308	C	2017-11-17 15:35:26
2	Dan Suwanseree	362	C	2017-11-16 13:25:33
3	Liampisan Nipat	488	C	2017-11-16 12:29:43
4	Jerome Fietz	568	C	2017-11-16 12:32:39

#	User	Length	Language	Date
1	Deci Bel	394	C#	2026-02-28 18:09:04

#	User	Length	Language	Date
1	Sven Rönnbäck	161	C++	2025-08-27 17:15:54
2	Polawat Nakthong	244	C++	2017-11-16 12:19:52
3	Hidden user	292	C++	2026-02-06 01:58:41
4	Petrov Michail	305	C++	2017-11-16 12:31:50
5	Кирилл Кудряшов	326	C++	2017-11-16 14:31:18
6	Hidden user	328	C++	2017-11-16 14:38:18
7	Vadim Popolitov	363	C++	2025-08-15 21:00:27
8	Michael Pfeifer	365	C++	2017-11-05 14:04:40
9	Abish Jha	367	C++	2017-11-07 05:50:44
10	Svent Julien Slein	380	C++	2017-11-16 14:29:03

#	User	Length	Language	Date
1	Hidden user	437	Go	2017-11-05 02:46:46

#	User	Length	Language	Date
1	Brent Yorgey	344	Haskell	2017-11-07 06:57:21
2	Steinar Simonnes	492	Haskell	2025-08-24 08:52:21

#	User	Length	Language	Date
1	Markus Alker	422	Java	2017-11-16 12:44:49
2	Thomas Anung Basuki	427	Java	2026-01-02 09:35:50
3	Chi H. Phan	440	Java	2017-11-16 12:55:56
4	Hemanth Kumar Babu	446	Java	2017-11-16 12:24:19
5	Mitch Price	448	Java	2017-11-05 22:45:16
6	Lutz Steinhilber	465	Java	2017-11-16 21:10:04
7	Stela Palii	477	Java	2017-11-19 07:38:25
8	Hunter Mullen	484	Java	2025-08-20 04:31:09
9	Vinh Phạm	497	Java	2017-11-18 18:32:10
10	Turner Atwood	508	Java	2017-11-05 23:03:16

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	94	JavaScript (SpiderMonkey)	2025-08-21 13:02:50
2	Jimmy Gustafsson	101	JavaScript (SpiderMonkey)	2025-09-18 09:53:29
3	Bjørn Chr. Soltvedt	210	JavaScript (SpiderMonkey)	2017-11-05 00:24:44

#	User	Length	Language	Date
1	Timothy Gaede	511	Julia	2025-08-13 17:59:57

#	User	Length	Language	Date
1	Adam Rankin	341	Kotlin	2026-01-16 05:35:37
2	Слава Гуляев	878	Kotlin	2017-11-06 01:19:05

#	User	Length	Language	Date
1	Neal Zane	168	Python 2	2017-11-07 08:24:03
2	Christofer Ohlsson	240	Python 2	2017-11-11 12:36:27

#	User	Length	Language	Date
1	Daniel Bogorad	92	Python 3	2025-09-02 06:01:46
2	Nicholas Russell Saerang	110	Python 3	2025-09-03 07:52:17
3	Simon Baeckelant	118	Python 3	2025-10-29 15:54:00
4	David Aldenbro	119	Python 3	2025-08-18 22:08:17
5	Ahmed Chamseddine	120	Python 3	2025-08-13 16:39:57
6	Teikn Smith	134	Python 3	2025-09-07 02:39:58
7	Magnus Eide-Fredriksen	136	Python 3	2025-12-02 15:39:12
8	Noah Hessen Bjerke	137	Python 3	2025-08-25 23:54:07
9	Yong Mao	139	Python 3	2025-08-25 02:33:20
10	Sander Oppen	145	Python 3	2025-11-17 22:52:39

#	User	Length	Language	Date
1	Thomas Feld	67	Ruby	2025-08-22 13:54:42

#	User	Length	Language	Date
1	Pankajkumar Patro	511	Rust	2025-08-28 18:35:42
2	August Lind	611	Rust	2025-12-27 00:05:41
3	Jiaye Will Wang	1407	Rust	2025-09-09 05:04:10

Solution running time distribution