Problem A
Parsing Hex — Problem Statistics

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Submissions	4654
Accepted submissions	1563
Submission ratio	33.58%
Authors	1374
Full solves [?]	1207
Full solve Ratio	87.85%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.04 s	Bash	2023-09-22 14:23:58
2	Thomas Feld	0.06 s	Bash	2023-09-27 15:24:50

#	User	Runtime	Language	Date
1	Ugnius Skučas	0.02 s	C#	2016-10-16 00:31:55
2	Tomaž Kramer	0.02 s	C#	2016-12-02 00:28:50
3	Klas af Geijerstam	0.02 s	C#	2016-12-06 22:00:11
4	Daryal Murat Akay	0.02 s	C#	2018-10-17 13:49:15
5	Apurv Parekh	0.02 s	C#	2019-02-22 04:38:41
6	Raja Sanjeev Kumar Nakka	0.03 s	C#	2016-07-05 17:07:14
7	Piotr Karpala	0.04 s	C#	2017-10-20 05:01:39
8	Mikael Fiala-Lundström	0.04 s	C#	2021-10-04 00:02:32
9	traxex	0.04 s	C#	2024-05-25 20:38:53
10	Jonas S	0.05 s	C#	2015-09-07 21:14:14

#	User	Runtime	Language	Date
1	David Cawthon	0.03 s	Common Lisp	2019-05-12 03:34:35

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05 s	F#	2023-02-11 09:18:45

#	User	Runtime	Language	Date
1	Erik Rairden	0.02 s	Go	2021-01-01 06:32:53
2	Norbert Voelker	0.02 s	Go	2021-08-22 20:12:28

#	User	Runtime	Language	Date
1	Christian Leipe	0.00 s	Haskell	2015-12-09 08:36:49
2	Steinar Simonnes	0.00 s	Haskell	2024-05-13 18:37:35
3	Hidden user	0.01 s	Haskell	2015-10-05 14:37:10
4	Wilfried van Asten	0.01 s	Haskell	2015-12-19 18:51:25
5	Joey Chan	0.01 s	Haskell	2017-09-21 02:35:12
6	Mark Senoga	0.01 s	Haskell	2017-09-29 21:34:46
7	Brent Yorgey	0.01 s	Haskell	2018-10-18 14:15:32
8	Isaac Arvestad	0.01 s	Haskell	2018-11-09 19:38:09
9	Antony Lee	0.01 s	Haskell	2019-01-16 22:29:31
10	Zach Tschetter	0.01 s	Haskell	2019-04-01 07:18:19

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.06 s	Java	2016-10-12 22:49:00
2	Sven Rönnbäck	0.06 s	Java	2022-03-05 21:58:44
3	Michael Sullivan	0.07 s	Java	2016-01-17 06:16:11
4	Liam Keliher	0.07 s	Java	2016-07-08 18:08:57
5	Nick Wu	0.07 s	Java	2016-09-04 23:56:28
6	John Ladera	0.07 s	Java	2018-03-29 01:51:06
7	Alexander Matheson	0.07 s	Java	2025-07-25 02:13:02
8	Pål Forsberg	0.08 s	Java	2015-10-08 15:27:12
9	Hidden user	0.08 s	Java	2016-02-03 20:03:56
10	Amy Colpitts	0.08 s	Java	2025-07-25 02:17:01

#	User	Runtime	Language	Date
1	Vadim Prokopev	0.08 s	JavaScript (Node.js)	2019-01-15 13:24:35
2	Daniel Angulo	0.45 s	JavaScript (Node.js)	2021-03-09 20:49:57
3	Farris Billy	0.45 s	JavaScript (Node.js)	2021-03-15 06:57:32
4	Hovhannes Kantuni	0.47 s	JavaScript (Node.js)	2020-08-12 21:27:05

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-21 15:35:47
2	Johannes Jensen	0.01 s	JavaScript (SpiderMonkey)	2016-03-06 13:10:38
3	Michael Laszlo	0.01 s	JavaScript (SpiderMonkey)	2016-10-06 17:18:33
4	J M	0.01 s	JavaScript (SpiderMonkey)	2016-10-07 18:39:12
5	Piotr Karpala	0.01 s	JavaScript (SpiderMonkey)	2017-10-20 04:50:23
6	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-02-22 05:02:17
7	Paul Leung	0.02 s	JavaScript (SpiderMonkey)	2017-08-25 19:16:51
8	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-02-02 23:20:54

#	User	Runtime	Language	Date
1	Danny Robinson	0.60 s	Julia	2023-09-03 18:06:22
2	Timothy Gaede	0.71 s	Julia	2024-04-20 05:12:15

#	User	Runtime	Language	Date
1	Przemysław Curzytek	0.20 s	Kotlin	2017-10-20 05:02:26
2	Marcin Wiśniowski	0.21 s	Kotlin	2017-09-29 13:44:20
3	Hidden user	0.23 s	Kotlin	2017-11-28 07:30:07
4	Min-Zheng Shieh	0.25 s	Kotlin	2021-03-18 04:31:10
5	Dayan Ruben Gonzalez	0.26 s	Kotlin	2020-10-04 05:14:16
6	Adam Rankin	0.27 s	Kotlin	2023-09-09 01:03:07
7	Zaw Myat	0.29 s	Kotlin	2024-02-04 14:17:27

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-08-12 21:30:37

#	User	Runtime	Language	Date
1	Connor Billings	0.01 s	PHP	2020-07-27 23:11:33
2	Jakob Fridesjö	0.01 s	PHP	2023-02-17 21:00:19

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	Prolog	2016-12-14 14:17:27

#	User	Runtime	Language	Date
1	Tore Norderud	0.03 s	Python 2	2015-10-08 22:31:07
2	Hidden user	0.03 s	Python 2	2019-03-16 17:10:25
3	Christofer Ohlsson	0.04 s	Python 2	2015-08-18 23:42:54
4	Lars Tveito	0.04 s	Python 2	2015-10-08 17:36:19
5	Patrik Lilja	0.04 s	Python 2	2015-11-08 12:28:27
6	Asger Hautop Drewsen	0.04 s	Python 2	2016-01-27 16:50:03
7	Urban Pettersson	0.04 s	Python 2	2016-02-08 12:23:54
8	Benjamin Nichols	0.04 s	Python 2	2016-09-23 23:15:48
9	Mathis Hammel	0.04 s	Python 2	2016-11-24 01:34:23
10	Erik Sillén	0.04 s	Python 2	2017-05-19 16:42:13

#	User	Runtime	Language	Date
1	Wayne	0.02 s	Python 3	2016-01-25 10:16:18
2	Kent Tsuenchy	0.02 s	Python 3	2016-02-08 00:41:46
3	Isaac Lee	0.02 s	Python 3	2016-07-12 01:27:05
4	Christian Lindeström	0.02 s	Python 3	2016-09-09 01:47:02
5	Matthew Casserly	0.02 s	Python 3	2016-10-19 20:19:17
6	Joey Chan	0.02 s	Python 3	2016-11-15 23:46:30
7	Óðinn Eyjólfsson	0.02 s	Python 3	2017-02-18 00:26:21
8	Lawrence Qiu	0.02 s	Python 3	2017-03-20 05:05:36
9	Noah Ó Donnaile	0.02 s	Python 3	2017-03-21 21:04:57
10	Joshua Guerin	0.02 s	Python 3	2017-04-09 21:22:45

#	User	Runtime	Language	Date
1	Macdara mac an tSionnaigh	0.05 s	Ruby	2019-11-02 20:21:11
2	Thomas Feld	0.06 s	Ruby	2023-01-30 10:32:27
3	Jakob Fridesjö	0.06 s	Ruby	2023-01-30 11:38:19
4	Clement Oh	0.07 s	Ruby	2024-02-17 08:52:49
5	Bobby David	0.07 s	Ruby	2024-07-23 22:48:11
6	Chenzhang Hu	0.13 s	Ruby	2025-09-22 18:55:32

#	User	Runtime	Language	Date
1	Got Yaoi	0.00 s	Rust	2019-01-25 03:29:54
2	Connor Skees	0.00 s	Rust	2020-10-27 18:23:26
3	Joshua Ji	0.00 s	Rust	2020-12-20 01:23:32
4	Eric Pinter	0.00 s	Rust	2021-07-15 17:39:52
5	Isak Jägberg	0.00 s	Rust	2023-04-05 13:43:25
6	Lily Gloudemans	0.00 s	Rust	2023-10-03 23:28:50
7	Vincent Lagerros	0.00 s	Rust	2025-06-03 01:30:55
8	Hidden user	0.01 s	Rust	2019-03-07 17:52:40
9	Bas Dirks	0.01 s	Rust	2022-01-20 10:40:17

#	User	Length	Language	Date
1	Chenzhang Hu	46	Bash	2025-09-13 04:34:02
2	Thomas Feld	48	Bash	2023-09-27 14:53:34

#	User	Length	Language	Date
1	Christos Kontas	371	C	2019-05-09 14:45:58
2	Hidden user	545	C	2021-06-01 04:51:24
3	Mikael Magnusson	571	C	2016-11-10 13:35:47
4	Tyler Mulholland	743	C	2023-03-31 04:47:17
5	Einar Indridason	844	C	2017-05-17 14:18:08
6	葉欲禾	948	C	2022-03-07 04:34:57
7	Andrew Roberts	962	C	2017-10-07 01:00:08
8	Filip Hovorka	1078	C	2020-10-30 22:09:39
9	Ehsan Shoja	1084	C	2018-06-13 06:54:31
10	Daniel Velasquez	1195	C	2021-03-18 20:45:52

#	User	Length	Language	Date
1	Zach Champeau	587	C#	2023-09-18 03:08:07
2	traxex	628	C#	2024-05-25 20:38:53
3	Adam Mellen	923	C#	2017-09-29 13:14:44
4	Heracles	957	C#	2018-11-11 23:17:58
5	Per-Arne Lennartssony	986	C#	2018-12-12 10:25:51
6	Brad	1066	C#	2024-07-23 23:38:25
7	Donald Heppner	1098	C#	2017-10-21 04:03:58
8	Andreas	1180	C#	2018-11-24 14:41:29
9	Apurv Parekh	1218	C#	2019-02-22 04:38:41
10	Jonas S	1282	C#	2015-09-07 21:14:14

#	User	Length	Language	Date
1	Frans Meulenbroeks	265	C++	2025-03-31 22:46:40
2	lamamattis	346	C++	2025-03-14 03:27:18
3	Scott MacIntosh	425	C++	2019-09-29 18:52:19
4	Paco Criado	425	C++	2023-03-11 00:15:34
5	人外沙耶	429	C++	2021-06-18 05:11:31
6	C0der13	435	C++	2021-02-26 23:00:50
7	Hidden user	446	C++	2022-03-10 22:41:55
8	Judith Hemp	448	C++	2021-01-01 19:34:43
9	Hidden user	452	C++	2017-09-12 00:50:28
10	Lee Yu Choy	458	C++	2017-11-19 19:22:56

#	User	Length	Language	Date
1	David Cawthon	803	Common Lisp	2019-05-12 03:34:35

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1510	F#	2023-02-11 09:18:45

#	User	Length	Language	Date
1	Erik Rairden	455	Go	2021-01-01 05:54:43
2	Norbert Voelker	848	Go	2021-08-22 20:12:28

#	User	Length	Language	Date
1	Øyvind Almli	567	Haskell	2022-03-31 21:22:19
2	Hidden user	644	Haskell	2015-10-05 14:37:10
3	Zach Tschetter	912	Haskell	2019-04-01 07:18:19
4	Antony Lee	944	Haskell	2019-01-16 22:29:31
5	Isaac Arvestad	968	Haskell	2018-11-09 19:38:09
6	Steinar Simonnes	1082	Haskell	2024-05-13 18:37:35
7	Joey Chan	1094	Haskell	2017-09-21 02:35:12
8	Christian Leipe	1151	Haskell	2015-12-09 08:36:49
9	Brent Yorgey	1226	Haskell	2018-10-18 14:15:32
10	Mark Senoga	1262	Haskell	2017-09-29 21:34:46

#	User	Length	Language	Date
1	Diga Widyaprana	546	Java	2016-02-23 08:00:58
2	Xuyan Huang	575	Java	2023-11-10 02:51:42
3	Mehdi Ichou	600	Java	2017-03-20 03:08:04
4	Pieter Vandamme	633	Java	2019-10-13 20:30:20
5	Samuel Klingström	641	Java	2018-11-06 16:09:07
6	Grayson Briggs	645	Java	2015-11-12 05:28:16
7	Jesse Moore	649	Java	2015-11-11 00:37:32
8	Ryan Wakelin	651	Java	2023-02-15 17:38:33
9	Lena Ruiz	699	Java	2017-11-17 03:11:19
10	kshitij uppal	707	Java	2024-03-22 23:17:25

#	User	Length	Language	Date
1	Vadim Prokopev	384	JavaScript (Node.js)	2019-01-15 13:24:35
2	Daniel Angulo	1502	JavaScript (Node.js)	2021-03-09 20:49:57
3	Hovhannes Kantuni	1654	JavaScript (Node.js)	2020-08-12 21:27:05
4	Farris Billy	1727	JavaScript (Node.js)	2021-03-15 06:57:32

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	80	JavaScript (SpiderMonkey)	2023-02-02 23:20:54
2	J M	149	JavaScript (SpiderMonkey)	2016-10-07 18:39:12
3	Peter Kedemo	153	JavaScript (SpiderMonkey)	2015-12-21 15:35:47
4	Johannes Jensen	239	JavaScript (SpiderMonkey)	2016-03-06 13:10:38
5	Paul Leung	493	JavaScript (SpiderMonkey)	2017-08-25 19:16:51
6	Bjørn Chr. Soltvedt	555	JavaScript (SpiderMonkey)	2016-02-22 05:02:17
7	Michael Laszlo	668	JavaScript (SpiderMonkey)	2016-10-06 17:18:33
8	Piotr Karpala	2346	JavaScript (SpiderMonkey)	2017-10-20 04:55:29

#	User	Length	Language	Date
1	Danny Robinson	116	Julia	2023-09-03 18:06:22
2	Timothy Gaede	886	Julia	2024-04-20 05:12:15

#	User	Length	Language	Date
1	Adam Rankin	314	Kotlin	2023-09-09 01:03:07
2	Hidden user	448	Kotlin	2017-11-28 07:30:07
3	Zaw Myat	502	Kotlin	2024-02-04 14:17:27
4	Przemysław Curzytek	569	Kotlin	2017-10-20 05:02:26
5	Min-Zheng Shieh	660	Kotlin	2021-03-18 04:31:10
6	Dayan Ruben Gonzalez	903	Kotlin	2020-10-04 05:14:16
7	Marcin Wiśniowski	1946	Kotlin	2017-09-29 13:44:20

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1091	Pascal	2017-08-12 21:30:37

#	User	Length	Language	Date
1	Jakob Fridesjö	120	PHP	2023-02-17 21:00:19
2	Connor Billings	247	PHP	2020-07-27 23:11:33

#	User	Length	Language	Date
1	Andriy Zyevakov	1720	Prolog	2016-12-14 14:17:27

#	User	Length	Language	Date
1	Jakob Fridesjö	86	Python 2	2023-11-21 01:28:25
2	Tore Norderud	130	Python 2	2015-10-08 22:31:07
3	Thomas Feld	134	Python 2	2019-09-26 16:15:36
4	Asger Hautop Drewsen	139	Python 2	2016-01-27 16:50:03
5	Lim Hong Hui Eugene	147	Python 2	2019-04-22 05:32:21
6	Erik Sillén	152	Python 2	2017-05-19 16:42:13
7	Riko Jacob	155	Python 2	2019-03-04 08:08:12
8	Jesper Öqvist	156	Python 2	2018-11-05 00:47:30
9	Patrik Lilja	165	Python 2	2015-11-08 12:29:25
10	Vifill Sverrisson	171	Python 2	2018-03-19 16:33:43

#	User	Length	Language	Date
1	Jakob Fridesjö	87	Python 3	2023-11-21 01:30:31
2	Clement Oh	89	Python 3	2023-05-14 14:45:50
3	Simon Baeckelant	89	Python 3	2025-11-12 14:03:04
4	David Aldenbro	94	Python 3	2025-10-14 14:01:55
5	Nino Bašić	97	Python 3	2023-01-07 10:39:19
6	Noah Hessen Bjerke	100	Python 3	2025-11-07 15:55:02
7	Jayden Pahukula	103	Python 3	2023-09-28 01:32:56
8	Nicholas Russell Saerang	106	Python 3	2023-08-07 12:36:35
9	Liam Kellogg	112	Python 3	2023-09-15 07:56:18
10	Tai Tze Kin	113	Python 3	2024-05-04 18:43:36

#	User	Length	Language	Date
1	Jakob Fridesjö	36	Ruby	2023-02-27 22:44:33
2	Thomas Feld	40	Ruby	2023-02-21 08:23:16
3	Clement Oh	93	Ruby	2024-02-17 08:52:49
4	Bobby David	140	Ruby	2024-07-23 22:48:11
5	Chenzhang Hu	145	Ruby	2025-09-22 18:55:32
6	Macdara mac an tSionnaigh	434	Ruby	2019-11-02 20:21:11

#	User	Length	Language	Date
1	Vincent Lagerros	732	Rust	2025-06-03 01:30:55
2	Got Yaoi	1061	Rust	2019-01-25 03:29:54
3	Lily Gloudemans	1291	Rust	2023-10-03 23:39:50
4	Eric Pinter	1392	Rust	2021-07-15 17:39:52
5	Bas Dirks	1403	Rust	2022-01-20 10:40:17
6	Joshua Ji	2244	Rust	2020-12-20 01:23:32
7	Isak Jägberg	2323	Rust	2023-04-05 13:46:21
8	Hidden user	2380	Rust	2019-03-07 17:52:40
9	Connor Skees	2569	Rust	2020-10-27 18:23:26

Solution running time distribution