Problem I
Image Processing — Problem Statistics

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Submissions	2721
Accepted submissions	1598
Submission ratio	58.73%
Authors	1475
Accepted authors	1376
Author ratio	93.29%

#	User	Runtime	Language	Date
1	Khin Nyunt	0.02 s	C#	2017-09-13 07:48:03
2	Faisal Rahman	0.02 s	C#	2018-05-23 08:53:13
3	Frankie Chen	0.02 s	C#	2019-07-11 23:22:55
4	Sean Hurt	0.02 s	C#	2021-04-03 19:34:36
5	Anthony Radke	0.02 s	C#	2021-04-03 20:18:34
6	Christian Hawkins	0.02 s	C#	2021-04-03 22:27:31
7	Mattias Hedlund	0.02 s	C#	2022-07-12 00:55:13
8	Eric Weiss	0.02 s	C#	2022-09-02 21:30:23
9	Ricardo H Guerrero Lara	0.02 s	C#	2022-10-02 03:03:21
10	Julián López Valencia	0.02 s	C#	2022-10-06 17:25:34

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-11-26 04:23:46
2	Hidden user	0.02 s	Common Lisp	2019-06-25 02:49:14

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-10-16 14:04:13

#	User	Runtime	Language	Date
1	Ian Howell	0.02 s	Go	2022-08-30 16:52:00
2	Norbert Voelker	0.08 s	Go	2021-06-18 21:05:14

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2017-11-11 04:59:52
2	Daniel Krueger	0.00 s	Haskell	2018-07-27 01:42:48
3	Nick Pershyn	0.01 s	Haskell	2019-08-18 23:56:59
4	Hidden user	0.01 s	Haskell	2019-10-06 18:10:39
5	Jan Hrček	0.01 s	Haskell	2021-03-31 05:55:52
6	Steinar Simonnes	0.01 s	Haskell	2024-07-10 18:45:15

#	User	Runtime	Language	Date
1	Andrew Benedict	0.04 s	Java	2024-10-31 20:45:56
2	Phuc Le Thanh	0.04 s	Java	2024-11-02 12:49:32
3	Hidden user	0.04 s	Java	2025-02-18 12:37:27
4	Tony Chen	0.04 s	Java	2025-06-19 07:08:05
5	Jeffrey Xiao	0.06 s	Java	2017-03-18 20:13:45
6	Aldo Chow	0.06 s	Java	2017-03-18 21:02:25
7	Daniel Dastoor	0.06 s	Java	2017-03-18 21:09:00
8	Jules Berman	0.06 s	Java	2017-03-18 21:10:26
9	Dante Bencivenga	0.06 s	Java	2017-03-18 21:11:03
10	Martijn Muijsers	0.06 s	Java	2017-03-18 22:55:21

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2017-03-18 23:13:28
2	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2017-03-19 10:54:13
3	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-24 12:21:55
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-15 21:42:38

#	User	Runtime	Language	Date
1	Timothy Gaede	0.75 s	Julia	2024-05-11 10:00:26

#	User	Runtime	Language	Date
1	Johnny Baloney	0.14 s	Kotlin	2021-12-30 22:55:15
2	Adam Rankin	0.19 s	Kotlin	2023-09-02 17:24:40
3	Ravisai Tiruvuri	0.19 s	Kotlin	2024-04-30 05:25:15
4	Aidan Dagnall	0.20 s	Kotlin	2022-09-30 14:22:43
5	Emil Wihlander	0.22 s	Kotlin	2024-07-20 00:30:45
6	Adam Koprowski	0.23 s	Kotlin	2020-08-18 22:43:50
7	Neil Harmon	0.24 s	Kotlin	2019-07-11 10:58:00
8	Chris Johnson	0.29 s	Kotlin	2024-11-08 22:19:23

#	User	Runtime	Language	Date
1	Quan Le Huynh Dong	0.00 s	Lua	2024-11-26 04:57:19

#	User	Runtime	Language	Date
1	Mitchell Tucker	0.00 s	Nim	2024-10-19 04:14:25

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	OCaml	2024-01-12 16:11:18

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-10-16 12:10:59

#	User	Runtime	Language	Date
1	Markus Weller	0.01 s	PHP	2019-02-21 16:16:15

#	User	Runtime	Language	Date
1	Jasper Chapman-Black	0.03 s	Python 2	2017-03-18 20:31:50
2	Shounak Dey	0.03 s	Python 2	2017-03-18 20:44:16
3	Arash Afshar	0.03 s	Python 2	2017-03-18 20:56:57
4	Christofer Ohlsson	0.03 s	Python 2	2017-03-18 21:24:38
5	Henrique Pereira	0.03 s	Python 2	2017-03-18 22:15:53
6	Haggai Liu	0.03 s	Python 2	2017-04-07 06:03:46
7	Erik Sillén	0.03 s	Python 2	2017-05-12 16:54:08
8	Kasper Borys	0.03 s	Python 2	2018-01-21 20:21:59
9	Jesper Öqvist	0.03 s	Python 2	2018-10-27 13:17:57
10	Eoin Davey	0.03 s	Python 2	2018-11-21 21:05:58

#	User	Runtime	Language	Date
1	Hua Fan Cai	0.02 s	Python 3	2017-03-18 20:32:47
2	Jan Clarin	0.02 s	Python 3	2017-03-18 20:43:34
3	Peter Fajner	0.02 s	Python 3	2017-03-18 21:21:30
4	Thomas Vu	0.02 s	Python 3	2017-03-18 21:42:40
5	Victor Zheng	0.02 s	Python 3	2017-03-19 03:50:11
6	Jackie Yu	0.02 s	Python 3	2017-03-22 16:52:03
7	William Fiset	0.02 s	Python 3	2017-03-23 00:58:44
8	Isaac Lee	0.02 s	Python 3	2017-03-23 01:01:43
9	Teresa Van	0.02 s	Python 3	2017-03-23 19:00:25
10	Finni M.	0.02 s	Python 3	2017-04-09 00:54:38

#	User	Runtime	Language	Date
1	Farooq Khan	0.00 s	Rust	2020-05-28 19:12:35
2	Bas Dirks	0.00 s	Rust	2022-02-23 14:49:04
3	David Rasch	0.00 s	Rust	2022-05-26 18:42:57
4	Reis Faar	0.00 s	Rust	2023-04-15 12:21:55
5	Juan Andres Moreno	0.00 s	Rust	2023-11-15 08:28:52
6	Isak Jägberg	0.00 s	Rust	2024-10-21 11:56:14

#	User	Length	Language	Date
1	Nguyen Hoang Viet _FUG CT	656	C	2022-07-22 17:27:19
2	Vo Minh Thong (K17 CT)	658	C	2022-07-22 13:39:49
3	Andrew Roberts	701	C	2017-09-23 06:04:36
4	Nguyen Anh Khoi (K17_CT)	701	C	2022-07-22 04:35:52
5	Tran Vo Gia Huy (K17 CT)	737	C	2022-07-22 04:29:05
6	Nguyen Phuc Anh Duy (K17 CT)	737	C	2022-07-22 15:02:57
7	Le Thi My Duyen (K17_CT)	737	C	2022-07-22 16:01:40
8	Nguyen Chi Hau (K17_CT)	739	C	2022-07-21 07:09:41
9	Ngo Hai Dang (K17 CT)	739	C	2022-07-22 04:31:49
10	K17 CT Phan Lê Thái Nam	739	C	2022-07-22 14:38:39

#	User	Length	Language	Date
1	Göran Andersson	1171	C#	2022-05-21 23:21:55
2	Khin Nyunt	1240	C#	2017-09-13 07:48:03
3	Frankie Chen	1574	C#	2019-07-11 23:22:55
4	Eric Weiss	1825	C#	2022-09-02 21:30:23
5	Apurav Khare	1851	C#	2021-09-27 00:02:57
6	Alex F	1862	C#	2023-10-16 01:40:53
7	Faisal Rahman	1942	C#	2018-05-23 08:53:13
8	Christian Hawkins	1992	C#	2021-04-03 22:27:31
9	samvid mistry	2018	C#	2024-12-14 09:56:57
10	Roberto Emmanuel González Camarillo	2020	C#	2023-10-27 16:49:44

#	User	Length	Language	Date
1	Mattia Marziali	300	C++	2025-04-06 17:18:22
2	Tyler Fernando	334	C++	2022-11-21 11:32:04
3	Frederick Pek	472	C++	2021-05-18 11:46:09
4	施建邑	507	C++	2023-02-06 02:25:31
5	Victor Lecomte	510	C++	2017-03-18 20:16:58
6	Teikn Smith	531	C++	2022-06-17 20:51:37
7	River Koh	533	C++	2020-03-07 07:53:23
8	yezx x	538	C++	2021-12-23 08:45:09
9	林羽珍	545	C++	2023-07-14 06:37:36
10	quack	553	C++	2022-11-28 16:50:17

#	User	Length	Language	Date
1	Hidden user	814	Common Lisp	2019-06-25 02:49:14
2	David Cawthon	1820	Common Lisp	2020-11-26 04:23:46

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1524	F#	2022-10-16 14:04:13

#	User	Length	Language	Date
1	Norbert Voelker	1275	Go	2021-06-18 21:05:14
2	Ian Howell	1743	Go	2022-08-30 16:52:00

#	User	Length	Language	Date
1	Jan Hrček	854	Haskell	2021-03-31 05:55:52
2	Nick Pershyn	1073	Haskell	2019-08-18 23:56:59
3	Steinar Simonnes	1081	Haskell	2024-07-10 18:45:15
4	Daniel Krueger	1193	Haskell	2018-07-27 01:42:48
5	Brent Yorgey	1323	Haskell	2017-11-11 04:59:52
6	Hidden user	8323	Haskell	2019-10-06 18:10:39

#	User	Length	Language	Date
1	Doug Goodman	737	Java	2018-01-03 18:11:47
2	Yeung Man Tsung	775	Java	2022-06-22 10:53:32
3	Sam Huynh	844	Java	2021-07-08 14:09:46
4	Parker Wong	889	Java	2017-03-18 23:37:56
5	Khin Nyunt	901	Java	2017-11-08 10:16:09
6	Andrew Heng	906	Java	2017-03-19 22:18:35
7	Sunny Nagam	959	Java	2017-03-18 21:41:33
8	Ada Clevinger	985	Java	2018-06-07 02:21:41
9	Jiru Xu	1001	Java	2017-09-15 07:02:08
10	Nam Phan Thành	1002	Java	2018-07-25 08:09:42

#	User	Length	Language	Date
1	Jimmy Gustafsson	281	JavaScript (SpiderMonkey)	2024-07-15 21:42:38
2	Christian Cederquist	650	JavaScript (SpiderMonkey)	2023-01-24 12:21:55
3	Peter Kedemo	685	JavaScript (SpiderMonkey)	2017-03-19 10:54:13
4	Bjørn Chr. Soltvedt	694	JavaScript (SpiderMonkey)	2017-03-18 23:13:28

#	User	Length	Language	Date
1	Timothy Gaede	1830	Julia	2024-05-11 10:00:26

#	User	Length	Language	Date
1	Adam Koprowski	594	Kotlin	2020-08-18 22:43:50
2	Emil Wihlander	747	Kotlin	2024-07-20 00:30:45
3	Chris Johnson	903	Kotlin	2024-11-08 22:19:23
4	Adam Rankin	917	Kotlin	2023-09-02 17:24:40
5	Johnny Baloney	1054	Kotlin	2021-12-30 22:55:15
6	Aidan Dagnall	1206	Kotlin	2022-09-30 14:22:43
7	Neil Harmon	1833	Kotlin	2019-07-11 10:58:00
8	Ravisai Tiruvuri	6466	Kotlin	2024-04-30 05:25:15

#	User	Length	Language	Date
1	Quan Le Huynh Dong	829	Lua	2024-11-26 04:57:19

#	User	Length	Language	Date
1	Mitchell Tucker	1449	Nim	2024-10-19 04:14:25

#	User	Length	Language	Date
1	Hidden user	1446	OCaml	2024-01-12 16:11:18

#	User	Length	Language	Date
1	Ingemar Ragnemalm	852	Pascal	2017-10-16 12:10:59

#	User	Length	Language	Date
1	Markus Weller	778	PHP	2019-02-21 16:16:15

#	User	Length	Language	Date
1	Thomas Feld	356	Python 2	2019-09-26 10:12:38
2	Shounak Dey	378	Python 2	2017-03-18 20:44:16
3	Jesper Öqvist	398	Python 2	2018-10-27 13:17:57
4	Andreas Björklund	440	Python 2	2019-07-27 09:14:39
5	Haggai Liu	450	Python 2	2017-04-07 06:03:46
6	Johan Lyts	521	Python 2	2020-10-20 21:11:37
7	Kasper Borys	543	Python 2	2018-01-21 20:21:59
8	Johann Ly	545	Python 2	2019-01-13 04:14:16
9	Jasper Chapman-Black	558	Python 2	2017-03-18 20:31:50
10	Eoin Davey	563	Python 2	2018-11-21 21:05:58

#	User	Length	Language	Date
1	Farzam Abrishami	232	Python 3	2025-05-06 16:30:28
2	Benjamin Z White	239	Python 3	2023-05-06 12:04:45
3	Ahmed Chamseddine	269	Python 3	2024-07-29 18:40:35
4	Tai Tze Kin	273	Python 3	2024-05-02 20:42:53
5	Hidden user	289	Python 3	2021-04-13 17:31:06
6	Clement Oh	294	Python 3	2023-10-12 14:24:31
7	Simon Baeckelant	304	Python 3	2024-12-02 06:43:03
8	Vinh Buu Tang	320	Python 3	2024-08-19 23:04:33
9	Jason Cannon	336	Python 3	2019-11-22 21:10:46
10	Hua Fan Cai	342	Python 3	2017-03-18 20:32:47

#	User	Length	Language	Date
1	David Rasch	1260	Rust	2022-05-26 18:42:57
2	Reis Faar	1535	Rust	2023-04-15 12:21:55
3	Bas Dirks	1858	Rust	2022-02-23 14:49:04
4	Juan Andres Moreno	2061	Rust	2023-11-15 08:28:52
5	Isak Jägberg	2842	Rust	2024-10-21 11:56:14
6	Farooq Khan	3261	Rust	2020-05-28 19:12:35

Solution running time distribution