Problem A
Hot Hike — Problem Statistics

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Submissions	7137
Accepted submissions	3604
Submission ratio	50.50%
Authors	3245
Full solves [?]	2980
Full solve Ratio	91.83%

#	User	Runtime	Language	Date
1	Björn Pettersson	0.02 s	C#	2019-10-05 11:28:21
2	Morten A	0.02 s	C#	2019-10-05 11:46:56
3	TheHolyNoah	0.02 s	C#	2019-10-05 17:36:23
4	Dan Wolff	0.02 s	C#	2019-10-05 20:09:57
5	Henrik Hallbert	0.02 s	C#	2019-10-06 18:43:39
6	Sigrid Österling Sicking	0.02 s	C#	2019-10-10 08:45:47
7	Thomas Norris	0.02 s	C#	2019-10-10 18:23:06
8	Håkan Sjöström	0.02 s	C#	2019-10-12 12:36:13
9	Andreas Ljungberg	0.02 s	C#	2019-10-19 13:08:45
10	Klas Björkqvist	0.02 s	C#	2019-10-20 17:09:44

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Common Lisp	2020-01-19 05:14:07
2	wibi	0.01 s	Common Lisp	2020-08-16 07:26:51
3	David Cawthon	0.01 s	Common Lisp	2020-09-13 04:10:29

#	User	Runtime	Language	Date
1	Jesper Bech Christensen	0.02 s	F#	2022-04-25 11:32:11
2	Jacob Harris Cryer Kragh	0.04 s	F#	2022-10-09 19:15:39

#	User	Runtime	Language	Date
1	Husain Satan	0.00 s	Go	2023-12-07 12:35:40
2	Yafet Seyoum	0.00 s	Go	2025-07-02 09:59:09
3	Nick Bakkegaard	0.08 s	Go	2019-10-07 22:39:07
4	Ryan Looney	0.08 s	Go	2019-11-15 18:27:29
5	Dick Appel	0.08 s	Go	2020-05-26 16:26:28
6	Krzysztof Gibuła	0.08 s	Go	2021-04-21 23:56:44
7	Norbert Voelker	0.08 s	Go	2021-05-06 22:48:25
8	nicolas cacciato	0.08 s	Go	2021-06-04 22:58:24
9	Andriy Zyevakov	0.09 s	Go	2023-01-08 11:51:28

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2019-10-06 10:09:15
2	Arthur Andersen	0.00 s	Haskell	2019-10-21 21:07:33
3	Mason Barnhill	0.00 s	Haskell	2023-07-12 16:44:28
4	Rudy Matela	0.00 s	Haskell	2023-09-02 11:44:00
5	Marianne L. Fuglestad	0.01 s	Haskell	2019-10-05 19:53:24
6	Rudi Svartveit	0.01 s	Haskell	2019-10-05 20:36:15
7	Sebastian Paaske Tørholm	0.01 s	Haskell	2019-10-09 15:03:07
8	Matthew Craven	0.01 s	Haskell	2019-10-13 21:50:22
9	Aurélien Pepin	0.01 s	Haskell	2019-10-15 17:17:42
10	Agus Sentosa Hermawan	0.01 s	Haskell	2020-01-11 12:12:51

#	User	Runtime	Language	Date
1	Mufaddal Naya	0.06 s	Java	2020-07-04 12:28:20
2	Simon Kristiansen	0.06 s	Java	2020-11-16 09:25:43
3	Joachim Borup	0.06 s	Java	2021-02-21 11:40:21
4	Crystal Sharpe	0.06 s	Java	2021-03-05 01:26:29
5	Anish Kambhampati	0.06 s	Java	2022-01-27 01:17:50
6	Sven Rönnbäck	0.06 s	Java	2022-11-26 22:22:22
7	CUX "INDIO" PRADA	0.06 s	Java	2024-10-20 21:42:36
8	Axel Nilsson	0.06 s	Java	2024-11-17 15:48:56
9	Taras Romanyuk	0.06 s	Java	2024-12-08 00:53:44
10	Tarek	0.06 s	Java	2025-09-20 04:44:25

#	User	Runtime	Language	Date
1	Gonçalo Novo	0.05 s	JavaScript (Node.js)	2025-07-24 16:01:28
2	Peter Kedemo	0.41 s	JavaScript (Node.js)	2019-12-22 15:06:07
3	Chris Wong	0.41 s	JavaScript (Node.js)	2021-02-21 00:02:50
4	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-12 07:50:37
5	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-02-20 00:19:26
6	Jira Angel	0.42 s	JavaScript (Node.js)	2021-04-14 15:09:57
7	Einar van de Velde	0.42 s	JavaScript (Node.js)	2022-02-22 10:36:44
8	Niamh Limerick	0.42 s	JavaScript (Node.js)	2022-03-16 17:28:27

#	User	Runtime	Language	Date
1	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-08-25 20:45:52
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-18 23:21:11
3	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-04-23 20:18:25
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-18 22:13:32
5	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2019-10-09 12:59:19
6	Nicklas Utgaard	0.03 s	JavaScript (SpiderMonkey)	2019-10-27 00:48:33

#	User	Runtime	Language	Date
1	Timothy Gaede	0.55 s	Julia	2024-05-10 15:47:59
2	Danny Robinson	0.70 s	Julia	2023-10-18 04:47:41

#	User	Runtime	Language	Date
1	Jacob Huebner	0.11 s	Kotlin	2021-08-02 02:32:20
2	Benjamin Ye	0.11 s	Kotlin	2022-02-12 19:23:41
3	Nicholas Johnson	0.12 s	Kotlin	2021-08-03 19:27:42
4	Marit van Dijk	0.15 s	Kotlin	2021-09-14 17:42:56
5	Adam Rankin	0.18 s	Kotlin	2023-05-02 03:31:21
6	Dayan Ruben Gonzalez	0.19 s	Kotlin	2020-10-08 03:44:42
7	rexoy87980	0.19 s	Kotlin	2020-10-23 14:32:05
8	Frederik Bjørn Groben Nielsen	0.19 s	Kotlin	2021-03-21 16:05:44
9	Neil Harmon	0.20 s	Kotlin	2019-10-29 12:43:11
10	Matthew Lutze	0.21 s	Kotlin	2019-10-06 04:13:45

#	User	Runtime	Language	Date
1	Evan Magill	0.00 s	OCaml	2023-10-12 19:12:57

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-11-20 21:54:50

#	User	Runtime	Language	Date
1	cojonas1	0.01 s	PHP	2021-01-19 10:27:19
2	陳建宏	0.01 s	PHP	2021-06-14 18:33:06
3	Renate Fiala-Lundström	0.01 s	PHP	2021-07-18 01:20:39

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-28 00:35:08

#	User	Runtime	Language	Date
1	David Nilsson	0.03 s	Python 2	2019-10-05 11:09:51
2	Vaibhav Tulsyan	0.03 s	Python 2	2019-10-05 11:35:42
3	Björn Magnusson	0.03 s	Python 2	2019-10-05 18:59:38
4	Snild Dolkow	0.03 s	Python 2	2019-10-05 19:37:43
5	Hidden user	0.03 s	Python 2	2019-10-05 20:11:37
6	Lars Åström	0.03 s	Python 2	2019-10-05 22:51:30
7	Måns Magnusson	0.03 s	Python 2	2019-10-06 13:22:14
8	Maj Stenmark	0.03 s	Python 2	2019-10-06 13:24:10
9	Martin Holst	0.03 s	Python 2	2019-10-08 23:52:52
10	Justin Su	0.03 s	Python 2	2019-10-09 07:42:39

#	User	Runtime	Language	Date
1	Jesper Torp Kristensen	0.02 s	Python 3	2019-10-05 11:05:31
2	Hannes Bredberg	0.02 s	Python 3	2019-10-05 11:07:30
3	Siim Düüna	0.02 s	Python 3	2019-10-05 11:11:14
4	Christian Lindeström	0.02 s	Python 3	2019-10-05 11:11:17
5	Jiang Shenghu	0.02 s	Python 3	2019-10-05 11:12:23
6	Marcel Rød	0.02 s	Python 3	2019-10-05 11:14:04
7	Joakim Sunde	0.02 s	Python 3	2019-10-05 11:15:25
8	Inggriany Dwitami	0.02 s	Python 3	2019-10-05 11:22:09
9	Anton Älgmyr	0.02 s	Python 3	2019-10-05 11:23:56
10	Hidden user	0.02 s	Python 3	2019-10-05 11:25:15

#	User	Runtime	Language	Date
1	Macdara mac an tSionnaigh	0.04 s	Ruby	2019-10-06 21:52:02
2	Hidden user	0.04 s	Ruby	2019-10-07 20:51:15
3	Hidden user	0.04 s	Ruby	2019-11-12 23:35:04
4	Kok Dith	0.05 s	Ruby	2021-08-19 06:11:37
5	Thomas Feld	0.06 s	Ruby	2023-02-13 14:25:53
6	Russell Ng	0.07 s	Ruby	2025-05-25 15:34:25

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Swift	2024-09-04 22:21:17

#	User	Length	Language	Date
1	Magnus Wass	331	C	2020-02-14 03:10:22
2	Sebastian Oveland	346	C	2020-03-13 16:41:54
3	PRIYANKA S S	353	C	2025-03-26 09:27:35
4	Hidden user	361	C	2020-08-11 17:59:15
5	Julian Duniec	375	C	2023-08-31 14:52:03
6	junhao Lin	390	C	2022-12-09 09:40:58
7	Leslie Yip	396	C	2022-09-07 06:39:32
8	James Christian Ruiz	399	C	2023-09-02 12:40:45
9	Allan Nouri	412	C	2024-10-02 23:53:14
10	P X	415	C	2022-11-04 22:03:17

#	User	Length	Language	Date
1	Fredrik Lysholm	450	C#	2019-10-23 17:54:40
2	Esty Crow	565	C#	2025-07-25 03:27:39
3	Mark Meysenburg	583	C#	2024-03-22 15:25:35
4	Elijah	618	C#	2023-04-03 22:31:25
5	Kirstine Jørgensen	627	C#	2022-09-09 15:24:50
6	Shantanu Sharma	630	C#	2024-11-08 07:53:46
7	Håkan Sjöström	642	C#	2019-10-12 12:36:13
8	Göran Andersson	645	C#	2022-05-21 23:41:51
9	Morten A	649	C#	2019-10-05 11:46:56
10	Thomas Norris	651	C#	2019-10-10 18:23:06

#	User	Length	Language	Date
1	Tyler Fernando	166	C++	2022-11-07 04:39:46
2	Taylor Rodríguez	177	C++	2025-05-27 19:34:28
3	Hakan Kjellerstrand	218	C++	2025-03-02 18:10:10
4	Subramanian Ramasamy	243	C++	2022-08-08 03:43:35
5	Shang Zhou	248	C++	2022-01-06 03:11:04
6	Đậu Huy Minh	253	C++	2022-03-16 21:23:21
7	Hidden user	259	C++	2020-01-25 18:19:59
8	蔡童彥	265	C++	2025-01-09 04:05:04
9	張均聖	274	C++	2020-02-05 17:31:19
10	黃皓君	275	C++	2019-10-14 16:01:05

#	User	Length	Language	Date
1	wibi	312	Common Lisp	2020-08-16 07:26:51
2	Hidden user	446	Common Lisp	2020-01-19 05:14:07
3	David Cawthon	520	Common Lisp	2020-09-13 04:10:29

#	User	Length	Language	Date
1	Jesper Bech Christensen	365	F#	2022-04-25 11:32:11
2	Jacob Harris Cryer Kragh	386	F#	2022-10-09 19:15:39

#	User	Length	Language	Date
1	Ryan Looney	390	Go	2019-11-15 18:27:29
2	Nick Bakkegaard	408	Go	2019-10-07 22:39:07
3	Krzysztof Gibuła	553	Go	2021-04-21 23:56:44
4	Dick Appel	561	Go	2020-05-26 16:26:28
5	nicolas cacciato	670	Go	2021-06-04 22:58:24
6	Andriy Zyevakov	728	Go	2023-01-08 11:51:28
7	Husain Satan	840	Go	2023-12-07 12:35:40
8	Yafet Seyoum	857	Go	2025-07-02 09:59:09
9	Norbert Voelker	1292	Go	2021-05-06 22:48:25

#	User	Length	Language	Date
1	Agus Sentosa Hermawan	282	Haskell	2020-01-11 12:12:51
2	Rudi Svartveit	330	Haskell	2019-10-05 20:36:15
3	Matthew Craven	341	Haskell	2019-10-13 21:50:22
4	Mason Barnhill	372	Haskell	2023-07-12 16:44:28
5	Mark Lekkerkerker	391	Haskell	2020-05-26 16:52:31
6	Sebastian Paaske Tørholm	469	Haskell	2019-10-09 15:03:07
7	Steinar Simonnes	487	Haskell	2024-05-10 18:00:13
8	Jan Hrček	497	Haskell	2020-11-01 08:30:07
9	Tore Bergebakken	508	Haskell	2020-09-19 15:07:14
10	Rudy Matela	512	Haskell	2023-09-02 11:44:00

#	User	Length	Language	Date
1	John Hershey	267	Java	2023-10-19 18:29:33
2	Jacob Magnuson	430	Java	2019-11-01 18:09:37
3	Andrew Kennedy	433	Java	2020-06-02 21:42:16
4	Agnes Hardy Bertelsen	444	Java	2019-10-08 13:53:11
5	Ty Bargky	469	Java	2022-10-08 21:53:52
6	Ian Gonzalez	473	Java	2020-06-02 21:42:52
7	Evan Losier	481	Java	2019-10-10 02:57:43
8	Isaac Fuenmayor	486	Java	2020-06-02 22:04:21
9	Letizia Fazzini	486	Java	2021-03-05 15:53:54
10	Mia Wu	486	Java	2023-05-11 16:39:09

#	User	Length	Language	Date
1	Peter Kedemo	498	JavaScript (Node.js)	2019-12-22 15:06:07
2	Gonçalo Novo	644	JavaScript (Node.js)	2025-07-24 16:01:28
3	Howard Tin Chi Chan	669	JavaScript (Node.js)	2021-02-20 00:19:26
4	Jira Angel	712	JavaScript (Node.js)	2021-04-14 15:09:57
5	Chris Wong	766	JavaScript (Node.js)	2021-02-21 00:02:50
6	Niamh Limerick	795	JavaScript (Node.js)	2022-03-16 17:28:27
7	Einar van de Velde	842	JavaScript (Node.js)	2022-02-22 10:36:44
8	Andoko Chandra	867	JavaScript (Node.js)	2020-10-12 07:50:37

#	User	Length	Language	Date
1	Jimmy Gustafsson	143	JavaScript (SpiderMonkey)	2024-07-18 22:13:32
2	Zach Tschetter	211	JavaScript (SpiderMonkey)	2023-04-23 20:18:25
3	Bjørn Chr. Soltvedt	221	JavaScript (SpiderMonkey)	2019-10-09 12:59:19
4	Peter Menyes	246	JavaScript (SpiderMonkey)	2021-08-25 20:45:52
5	Christian Pilegaard Cederquist	279	JavaScript (SpiderMonkey)	2023-01-18 23:21:11
6	Nicklas Utgaard	627	JavaScript (SpiderMonkey)	2019-10-27 00:48:33

#	User	Length	Language	Date
1	Danny Robinson	91	Julia	2023-10-18 04:47:41
2	Timothy Gaede	447	Julia	2024-05-10 15:47:59

#	User	Length	Language	Date
1	Troy Warmboe	375	Kotlin	2020-02-07 01:54:37
2	Phường Lên	382	Kotlin	2020-01-03 05:56:19
3	Dayan Ruben Gonzalez	441	Kotlin	2020-10-08 03:44:42
4	Frederik Bjørn Groben Nielsen	450	Kotlin	2021-03-21 16:05:44
5	Brent Yorgey	487	Kotlin	2020-04-10 01:17:48
6	rexoy87980	567	Kotlin	2020-10-23 14:32:05
7	Matthew Lutze	597	Kotlin	2019-10-06 04:13:45
8	Marit van Dijk	607	Kotlin	2021-09-14 17:42:56
9	Adam Rankin	626	Kotlin	2023-05-02 03:31:21
10	Neil Harmon	979	Kotlin	2019-10-29 12:43:11

#	User	Length	Language	Date
1	Evan Magill	286	OCaml	2023-10-15 10:26:42

#	User	Length	Language	Date
1	Ingemar Ragnemalm	476	Pascal	2019-11-20 21:54:50

#	User	Length	Language	Date
1	Renate Fiala-Lundström	398	PHP	2021-07-18 01:20:39
2	cojonas1	716	PHP	2021-01-19 10:27:19
3	陳建宏	1275	PHP	2021-06-14 18:33:06

#	User	Length	Language	Date
1	Hakan Kjellerstrand	408	Prolog	2023-02-28 00:35:08

#	User	Length	Language	Date
1	Thomas Feld	125	Python 2	2019-10-08 15:16:12
2	Andreas Björklund	155	Python 2	2019-10-05 12:56:07
3	Hidden user	182	Python 2	2019-10-05 20:11:37
4	Vaibhav Tulsyan	191	Python 2	2019-10-05 11:35:42
5	Guan Yang Ze	191	Python 2	2019-10-11 16:43:49
6	Sigurður Jens Albertsson	192	Python 2	2020-06-07 19:01:38
7	Björn Magnusson	203	Python 2	2019-10-05 18:59:38
8	Johan Lyts	203	Python 2	2019-10-26 22:15:39
9	Lars Åström	212	Python 2	2019-10-05 22:51:30
10	David Nilsson	223	Python 2	2019-10-05 11:09:51

#	User	Length	Language	Date
1	Clement Oh	97	Python 3	2023-06-19 18:55:24
2	Guk Yi Siong	105	Python 3	2024-01-28 18:38:24
3	Taylor Rodríguez	107	Python 3	2025-05-27 00:48:43
4	Alexandre Douard	110	Python 3	2023-12-21 11:32:19
5	Timothy Baeckelant	114	Python 3	2024-05-08 20:30:53
6	Thibault Raffaillac	123	Python 3	2024-07-27 20:51:52
7	Charles Ancheta	126	Python 3	2023-03-25 22:32:36
8	Joonas Pihlajamaa	128	Python 3	2019-10-06 12:17:18
9	Cameron Kauffman	132	Python 3	2023-11-19 07:05:57
10	Tai Tze Kin	132	Python 3	2024-05-05 22:51:17

#	User	Length	Language	Date
1	Thomas Feld	80	Ruby	2023-02-13 14:28:42
2	Russell Ng	92	Ruby	2025-05-25 15:34:25
3	Hidden user	108	Ruby	2019-11-12 23:35:04
4	Kok Dith	220	Ruby	2021-08-19 06:11:37
5	Hidden user	225	Ruby	2019-10-07 20:51:15
6	Macdara mac an tSionnaigh	256	Ruby	2019-10-06 21:52:02

#	User	Length	Language	Date
1	Sean Malloy	341	Rust	2023-10-13 02:17:18
2	Vincent Lagerros	341	Rust	2025-06-14 18:06:23
3	Hidden user	474	Rust	2025-11-10 16:40:24
4	Raphaël Baulant	477	Rust	2021-01-31 00:55:51
5	David Zacek	497	Rust	2021-07-07 20:47:11
6	Hidden user	523	Rust	2021-01-28 09:57:54
7	Sylvain	568	Rust	2021-01-18 20:25:21
8	Karl Wallinger	569	Rust	2020-04-09 22:17:07
9	Raphaël Gauthier	594	Rust	2021-01-18 17:54:16
10	Bas Dirks	607	Rust	2022-01-05 22:55:56

#	User	Length	Language	Date
1	Hidden user	344	Swift	2024-09-04 22:21:17

Solution running time distribution