Problem C
Image Decoding — Problem Statistics

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Submissions	7041
Accepted submissions	1363
Submission ratio	19.36%
Authors	1227
Full solves [?]	996
Full solve Ratio	81.17%

#	User	Runtime	Language	Date
1	Mikael Magnusson	0.00 s	C	2017-01-16 16:36:44
2	Bernd Schmidt	0.00 s	C	2017-06-02 23:48:11
3	Seth Carter	0.00 s	C	2017-11-16 16:55:15
4	Ioannis Br	0.00 s	C	2020-06-25 23:30:04
5	Sambit Palit	0.00 s	C	2020-11-18 04:01:04
6	Luca Dolci	0.01 s	C	2019-03-14 21:04:19
7	Ferenc Rékasi	0.01 s	C	2021-12-13 19:30:13
8	Ledion Daja	0.01 s	C	2023-02-20 14:28:24
9	Hidden user	0.01 s	C	2024-08-31 21:48:48
10	Hidden user	0.02 s	C	2022-06-08 22:05:56

#	User	Runtime	Language	Date
1	Peti29	0.03 s	C#	2017-06-02 21:16:15
2	Ryan Randhawa	0.03 s	C#	2017-11-15 21:47:42
3	Apurv Parekh	0.03 s	C#	2019-02-22 18:16:49
4	Leo Rosen	0.04 s	C#	2021-10-25 18:04:54
5	Andreas Nilsson	0.04 s	C#	2022-05-03 19:42:09
6	Linus Yng	0.05 s	C#	2017-05-31 09:21:25
7	Aron Rask	0.05 s	C#	2021-09-23 16:25:57
8	Stian Talgø	0.05 s	C#	2023-03-03 20:14:00
9	Tom Karlsson	0.05 s	C#	2023-04-15 13:07:08
10	David Kuun	0.05 s	C#	2023-10-15 18:31:59

#	User	Runtime	Language	Date
1	Grae Yeandle	0.00 s	C++	2017-02-25 20:15:16
2	Elias Lousseief	0.00 s	C++	2017-11-04 18:31:47
3	Auburn Ford	0.00 s	C++	2019-03-26 04:23:37
4	Agis Daniels	0.00 s	C++	2020-04-02 17:51:42
5	Scott MacIntosh	0.00 s	C++	2020-05-23 17:38:06
6	Hidden user	0.00 s	C++	2022-03-04 09:59:34
7	Nikola Katov	0.00 s	C++	2025-05-03 00:36:41
8	go_mu	0.00 s	C++	2025-11-13 11:16:28
9	Tomas Lagland	0.01 s	C++	2015-08-26 12:30:23
10	Collin Rapp	0.01 s	C++	2015-09-22 02:20:35

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Common Lisp	2019-07-17 19:23:42

#	User	Runtime	Language	Date
1	Marcus Asplund	0.03 s	Go	2025-05-08 09:05:49
2	Norbert Voelker	0.08 s	Go	2021-11-13 20:59:10
3	Nicholas Miettinen	0.65 s	Go	2023-06-11 11:17:41

#	User	Runtime	Language	Date
1	Isaac Arvestad	0.01 s	Haskell	2019-03-09 10:32:11
2	Tim Put	0.01 s	Haskell	2021-06-02 21:17:10
3	Steinar Simonnes	0.02 s	Haskell	2025-09-12 19:27:58
4	Brent Yorgey	0.04 s	Haskell	2018-05-03 02:51:16
5	Ryan Yates	0.07 s	Haskell	2019-05-24 15:19:13
6	Antony Lee	0.08 s	Haskell	2020-05-13 16:17:18
7	Jan Hlavacek	0.09 s	Haskell	2016-11-23 03:12:29
8	Mikail Khan	0.09 s	Haskell	2022-01-14 18:48:38
9	Øyvind Almli	0.10 s	Haskell	2021-11-14 01:11:41

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.08 s	Java	2022-05-11 06:52:09
2	Leon Wang	0.11 s	Java	2024-08-31 23:53:49
3	Paul Boddington	0.14 s	Java	2016-05-14 21:29:58
4	Samuel Klingström	0.14 s	Java	2017-07-24 12:07:43
5	Gísli Freyr Sæmundsson	0.14 s	Java	2017-10-30 16:55:49
6	Micah Stairs	0.15 s	Java	2016-09-09 22:46:23
7	Martijn Muijsers	0.15 s	Java	2016-10-28 23:37:24
8	Haytem Haider	0.15 s	Java	2021-04-27 10:24:51
9	Kabir Batra	0.15 s	Java	2022-01-18 06:21:16
10	Elaine Huang	0.15 s	Java	2024-08-27 15:22:02

#	User	Runtime	Language	Date
1	Abirami Pmr	0.07 s	JavaScript (Node.js)	2024-02-04 15:55:48
2	Diogo Guedes	0.07 s	JavaScript (Node.js)	2024-07-01 10:12:15
3	Sander Hellesø	0.08 s	JavaScript (Node.js)	2019-04-26 02:35:37
4	Olga Prikhodko	0.08 s	JavaScript (Node.js)	2023-12-07 20:03:13
5	Daniel Rocha	0.08 s	JavaScript (Node.js)	2024-07-12 22:02:05
6	João Portugal	0.09 s	JavaScript (Node.js)	2024-08-14 17:55:18
7	Xavier Calhau	0.10 s	JavaScript (Node.js)	2025-10-10 07:55:02
8	Gurpartap Singh Bhatti	0.11 s	JavaScript (Node.js)	2019-03-09 19:25:04
9	Marcos Freitas	0.11 s	JavaScript (Node.js)	2025-03-21 16:59:29
10	Mikael Mohlin	0.12 s	JavaScript (Node.js)	2022-06-16 21:31:58

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2016-02-29 15:41:09
2	Peter Kedemo	0.05 s	JavaScript (SpiderMonkey)	2016-01-01 18:38:34
3	Christian Pilegaard Cederquist	0.06 s	JavaScript (SpiderMonkey)	2023-07-23 10:11:41
4	Zachary DeStefano	0.09 s	JavaScript (SpiderMonkey)	2019-09-28 21:01:24
5	J M	0.11 s	JavaScript (SpiderMonkey)	2016-10-28 12:40:54

#	User	Runtime	Language	Date
1	Hidden user	0.74 s	Julia	2025-09-08 18:30:59
2	Timothy Gaede	0.79 s	Julia	2024-06-06 03:33:15

#	User	Runtime	Language	Date
1	Hidden user	0.34 s	Kotlin	2017-12-11 07:43:42
2	Nuno Silva	0.55 s	Kotlin	2025-10-01 15:52:03

#	User	Runtime	Language	Date
1	Autumn Evelyn Dzian	0.02 s	OCaml	2021-04-17 20:03:15

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.03 s	Pascal	2019-10-08 17:40:46

#	User	Runtime	Language	Date
1	João Vasconcelos	0.02 s	PHP	2024-11-21 16:33:05
2	Pedro Gaspar	0.02 s	PHP	2025-09-28 19:33:03
3	Emerson Nunes	0.02 s	PHP	2025-12-18 16:13:31
4	Anthony Galea	0.05 s	PHP	2021-01-16 21:15:06

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.24 s	Prolog	2018-11-24 13:02:47

#	User	Runtime	Language	Date
1	Urban Pettersson	0.04 s	Python 2	2015-11-02 16:22:17
2	Rhys Balevicius	0.04 s	Python 2	2017-10-31 19:50:24
3	Hermon Mulat	0.04 s	Python 2	2018-12-19 16:34:42
4	Christofer Ohlsson	0.05 s	Python 2	2015-08-18 21:23:03
5	Erik Sillén	0.05 s	Python 2	2016-07-17 10:29:03
6	Michael Laszlo	0.05 s	Python 2	2016-10-22 01:07:36
7	Mathis Hammel	0.05 s	Python 2	2016-11-24 15:58:56
8	Trevor Masters	0.05 s	Python 2	2017-10-30 19:22:29
9	Ocram Esah	0.05 s	Python 2	2022-04-14 20:16:37
10	Neal Zane	0.06 s	Python 2	2016-08-08 01:15:32

#	User	Runtime	Language	Date
1	Hyaline Seiche	0.03 s	Python 3	2017-06-02 18:53:45
2	Ram Basnet	0.04 s	Python 3	2017-03-02 03:48:06
3	Richard Sterling	0.04 s	Python 3	2017-03-03 19:09:04
4	Nicholas Lantz	0.04 s	Python 3	2017-06-27 02:13:19
5	Melody Horn	0.04 s	Python 3	2017-09-05 22:38:43
6	Tim Salmon	0.04 s	Python 3	2017-09-19 00:56:24
7	Hakan Celik	0.04 s	Python 3	2017-12-18 20:21:44
8	Guðni Natan Gunnarsson	0.04 s	Python 3	2018-02-13 15:21:37
9	James Hamm	0.04 s	Python 3	2018-05-08 23:12:35
10	Joseph Campbell	0.04 s	Python 3	2018-05-20 17:42:40

#	User	Runtime	Language	Date
1	Bharathi Kandasamy	0.08 s	Ruby	2021-04-17 21:09:01
2	Caspar Wikström	0.10 s	Ruby	2021-05-24 08:04:07
3	Patrick Elsen	0.16 s	Ruby	2019-05-02 16:53:55

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-09-30 18:17:59
2	Lukas Dutrieux	0.00 s	Rust	2025-08-28 01:24:03
3	Klas af Geijerstam	0.01 s	Rust	2020-11-18 10:26:14
4	Bas Dirks	0.01 s	Rust	2022-01-26 21:04:44

#	User	Runtime	Language	Date
1	Venkatkumar Murugesan	0.08 s	TypeScript	2024-02-04 19:56:39

#	User	Length	Language	Date
1	Hidden user	914	C	2024-08-31 22:56:59
2	Bernd Schmidt	924	C	2017-06-02 23:48:11
3	Luca Dolci	1115	C	2019-03-14 21:04:19
4	Mikael Magnusson	1185	C	2017-01-16 16:36:44
5	Sambit Palit	1466	C	2020-11-18 04:01:04
6	Seth Carter	1523	C	2017-11-16 16:55:15
7	Ledion Daja	1867	C	2023-02-20 14:28:24
8	Maksym Shylo	2012	C	2022-10-25 21:48:53
9	Ferenc Rékasi	2534	C	2021-12-14 11:56:53
10	Ioannis Br	2578	C	2020-06-25 23:25:43

#	User	Length	Language	Date
1	Jorge Antunes	1310	C#	2025-10-17 19:07:09
2	Linus Yng	1378	C#	2017-05-31 09:17:47
3	David Sithole	1461	C#	2024-02-29 04:01:14
4	Hidden user	1525	C#	2021-12-23 17:04:51
5	Márton Krauter	1554	C#	2023-07-20 22:22:57
6	Anton Thunman Jonsson	1566	C#	2022-04-12 13:01:17
7	Cássio Leite	1567	C#	2024-07-10 16:58:33
8	Apurv Parekh	1572	C#	2019-02-22 18:16:49
9	Muthusamy Ramasamy	1587	C#	2021-04-17 15:14:39
10	Taqui	1648	C#	2022-05-24 19:33:09

#	User	Length	Language	Date
1	William Gan	535	C++	2018-01-26 16:03:35
2	Emmanuel Anaya	539	C++	2020-11-02 02:32:48
3	Herman Karlsson	581	C++	2016-01-23 16:10:25
4	Hidden user	585	C++	2024-11-25 16:52:29
5	WU DI	626	C++	2022-12-14 14:53:57
6	Illia Zakharov	633	C++	2023-04-27 14:53:45
7	Si Jun Ke	651	C++	2016-02-29 11:13:23
8	Tran Tuong Minh Nguyen	654	C++	2019-05-14 20:06:13
9	tarflah	656	C++	2016-12-05 14:26:36
10	Johan Wind	676	C++	2018-03-20 22:26:58

#	User	Length	Language	Date
1	Hidden user	1461	Common Lisp	2019-07-17 19:23:42

#	User	Length	Language	Date
1	Nicholas Miettinen	959	Go	2023-06-11 11:17:41
2	Norbert Voelker	1084	Go	2021-11-13 20:59:10
3	Marcus Asplund	2190	Go	2025-05-08 09:05:49

#	User	Length	Language	Date
1	Ryan Yates	602	Haskell	2019-05-24 15:19:13
2	Jan Hlavacek	794	Haskell	2016-11-23 03:12:29
3	Øyvind Almli	827	Haskell	2021-11-14 01:11:41
4	Isaac Arvestad	988	Haskell	2019-03-09 10:32:11
5	Antony Lee	1040	Haskell	2020-05-13 16:42:33
6	Tim Put	1072	Haskell	2021-06-02 21:17:10
7	Steinar Simonnes	1109	Haskell	2025-09-12 19:27:10
8	Mikail Khan	1399	Haskell	2022-01-14 18:48:38
9	Brent Yorgey	1448	Haskell	2018-05-03 02:51:16

#	User	Length	Language	Date
1	Zimu Qin	925	Java	2015-10-01 22:00:37
2	Doug Goodman	1000	Java	2018-01-03 17:48:03
3	Ian Leow	1046	Java	2015-12-07 13:20:19
4	Micah Stairs	1088	Java	2016-09-09 22:46:23
5	Sebastian Cavallin	1125	Java	2017-11-03 14:13:47
6	Jake Crampton	1142	Java	2019-10-29 23:14:22
7	Frank Ruskey	1145	Java	2017-09-23 21:17:13
8	Gísli Freyr Sæmundsson	1146	Java	2017-10-30 16:37:24
9	Aarush Patil	1165	Java	2024-09-10 05:49:42
10	Ada Clevinger	1176	Java	2017-06-17 05:42:48

#	User	Length	Language	Date
1	Miguel Silva	903	JavaScript (Node.js)	2024-07-10 21:54:51
2	Abirami Pmr	1115	JavaScript (Node.js)	2024-02-04 17:16:46
3	Christian Forsberg	1124	JavaScript (Node.js)	2021-04-18 10:13:28
4	Gurpartap Singh Bhatti	1184	JavaScript (Node.js)	2019-03-09 19:35:32
5	Sander Hellesø	1215	JavaScript (Node.js)	2019-04-26 02:35:37
6	Slawomir Malusecki	1231	JavaScript (Node.js)	2022-10-10 00:03:37
7	Olga Prikhodko	1428	JavaScript (Node.js)	2023-12-07 20:04:56
8	Diogo Guedes	1432	JavaScript (Node.js)	2024-07-01 10:12:15
9	Daniel Rocha	1715	JavaScript (Node.js)	2024-07-12 22:02:05
10	Katharina	1716	JavaScript (Node.js)	2021-10-09 08:41:08

#	User	Length	Language	Date
1	Zachary DeStefano	608	JavaScript (SpiderMonkey)	2019-09-28 21:01:24
2	Peter Kedemo	651	JavaScript (SpiderMonkey)	2016-01-01 18:38:34
3	Bjørn Chr. Soltvedt	716	JavaScript (SpiderMonkey)	2016-02-29 15:41:09
4	Christian Pilegaard Cederquist	756	JavaScript (SpiderMonkey)	2023-07-23 10:11:41
5	J M	870	JavaScript (SpiderMonkey)	2016-10-28 12:40:54

#	User	Length	Language	Date
1	Hidden user	261	Julia	2025-09-08 18:30:59
2	Timothy Gaede	1002	Julia	2024-06-06 03:33:15

#	User	Length	Language	Date
1	Hidden user	864	Kotlin	2017-12-11 07:43:42
2	Nuno Silva	2259	Kotlin	2025-10-01 15:52:03

#	User	Length	Language	Date
1	Autumn Evelyn Dzian	1893	OCaml	2021-04-17 20:03:15

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1946	Pascal	2019-10-08 17:40:46

#	User	Length	Language	Date
1	Pedro Gaspar	1415	PHP	2025-09-28 19:33:03
2	João Vasconcelos	1608	PHP	2024-11-21 16:33:05
3	Emerson Nunes	2009	PHP	2025-12-18 16:13:31
4	Anthony Galea	3942	PHP	2021-01-16 21:15:06

#	User	Length	Language	Date
1	Andriy Zyevakov	3534	Prolog	2018-11-24 13:02:47

#	User	Length	Language	Date
1	Thomas Feld	300	Python 2	2019-12-06 12:34:08
2	Andreas Björklund	437	Python 2	2020-10-25 16:03:26
3	Jesper Öqvist	470	Python 2	2019-03-10 12:54:40
4	Johan Lyts	512	Python 2	2019-12-21 14:14:59
5	Wang Zhi Jian	527	Python 2	2019-05-08 06:56:14
6	Neal Zane	530	Python 2	2016-08-08 01:15:32
7	Kasper Borys	538	Python 2	2020-03-08 19:45:51
8	Mathis Hammel	568	Python 2	2016-11-24 15:58:56
9	Johann Ly	573	Python 2	2018-12-18 07:31:34
10	Tomas Alvarez	579	Python 2	2017-11-01 20:21:37

#	User	Length	Language	Date
1	Ahmed Chamseddine	253	Python 3	2025-10-20 17:49:40
2	Peter Stauder	276	Python 3	2023-03-30 19:52:29
3	Simon Baeckelant	278	Python 3	2024-12-02 05:39:26
4	Sergio Vieri	357	Python 3	2018-02-27 08:43:30
5	Hrant Hovhannisyan	358	Python 3	2025-11-03 08:04:34
6	Nicholas Russell Saerang	369	Python 3	2023-08-13 08:50:31
7	Shashank Bhatt	373	Python 3	2023-07-30 01:44:10
8	Magnus Eide-Fredriksen	383	Python 3	2024-10-22 20:55:25
9	Ciara Godwin	395	Python 3	2017-08-19 10:42:49
10	Kelly Dance	405	Python 3	2023-07-22 10:20:24

#	User	Length	Language	Date
1	Patrick Elsen	1310	Ruby	2019-05-02 16:53:55
2	Bharathi Kandasamy	1350	Ruby	2021-04-17 21:09:01
3	Caspar Wikström	1361	Ruby	2021-05-24 08:04:07

#	User	Length	Language	Date
1	Bas Dirks	1589	Rust	2022-01-26 21:04:44
2	Lukas Dutrieux	1974	Rust	2025-08-28 01:24:03
3	Klas af Geijerstam	6443	Rust	2020-11-18 10:26:14
4	Vincent Lagerros	16889	Rust	2024-09-30 18:17:59

#	User	Length	Language	Date
1	Venkatkumar Murugesan	1387	TypeScript	2024-02-04 19:56:39

Solution running time distribution