Problem F
Code Cleanups — Problem Statistics

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Submissions	3512
Accepted submissions	1241
Submission ratio	35.34%
Authors	1260
Full solves [?]	1075
Full solve Ratio	85.32%

#	User	Runtime	Language	Date
1	Viktor Wesström	0.02 s	C#	2018-10-07 10:46:14
2	Karl Lindblom	0.02 s	C#	2018-10-07 18:26:25
3	Dan Wolff	0.02 s	C#	2018-10-09 19:31:44
4	Jacob Aufdenberg	0.02 s	C#	2019-05-16 19:30:59
5	Keiron Beadle	0.03 s	C#	2019-09-27 13:56:04
6	Håkan Sjöström	0.03 s	C#	2019-10-04 14:21:26
7	Volodymyr Besida	0.03 s	C#	2020-03-26 21:35:12
8	Nils Lenart	0.03 s	C#	2020-04-02 13:49:49
9	Chi Tran	0.03 s	C#	2020-12-23 10:37:46
10	Mikael Fiala-Lundström	0.03 s	C#	2021-06-18 00:20:26

#	User	Runtime	Language	Date
1	Neal McCarthy	0.07 s	Go	2018-10-27 22:41:00
2	Arne Philipeit	0.07 s	Go	2019-01-30 04:42:13
3	Norbert Voelker	0.08 s	Go	2021-07-16 22:53:01

#	User	Runtime	Language	Date
1	Jannik Olbrich	0.00 s	Haskell	2023-01-19 09:35:44
2	Mason Barnhill	0.00 s	Haskell	2023-07-22 07:18:38
3	Isaac Arvestad	0.01 s	Haskell	2018-10-07 18:46:01
4	Brent Yorgey	0.01 s	Haskell	2018-10-11 22:29:58
5	Abel Martin	0.01 s	Haskell	2019-09-20 20:39:28
6	Hidden user	0.01 s	Haskell	2019-11-04 10:54:37
7	Rudy Matela	0.01 s	Haskell	2023-09-04 19:13:52

#	User	Runtime	Language	Date
1	Taras Romanyuk	0.04 s	Java	2024-12-13 17:30:16
2	CUX "INDIO" PRADA	0.04 s	Java	2025-02-04 10:23:09
3	André Berge	0.05 s	Java	2018-10-06 11:24:45
4	Sarah Jensen	0.05 s	Java	2018-10-15 14:45:28
5	Eyleifur Bjarkason	0.05 s	Java	2018-12-17 18:33:41
6	Sune Ohrt Sørensen	0.06 s	Java	2018-10-06 11:28:33
7	Mathias S. Grønstad	0.06 s	Java	2018-10-06 12:09:09
8	Magnar Myrtveit	0.06 s	Java	2018-10-06 17:32:15
9	Jakob Kallestad	0.06 s	Java	2018-10-06 17:54:35
10	Tobias Glimmerfors	0.06 s	Java	2018-10-06 20:26:14

#	User	Runtime	Language	Date
1	Oliver Larsson	0.08 s	JavaScript (Node.js)	2022-10-14 14:51:09

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2018-10-16 01:50:12
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-05-31 07:57:59
3	Johannes Jensen	0.03 s	JavaScript (SpiderMonkey)	2018-10-06 12:34:28

#	User	Runtime	Language	Date
1	Timothy Gaede	0.39 s	Julia	2025-10-19 09:00:58

#	User	Runtime	Language	Date
1	Jacob Huebner	0.13 s	Kotlin	2020-05-01 12:09:59
2	Adam Rankin	0.20 s	Kotlin	2023-09-21 23:13:14
3	Didrik Jonassen	0.21 s	Kotlin	2018-10-13 15:07:47
4	Troy Warmboe	0.21 s	Kotlin	2018-10-20 00:46:56
5	Benjamin Laurence Erickson	0.25 s	Kotlin	2019-01-31 22:21:57

#	User	Runtime	Language	Date
1	Caleb Austin	0.00 s	Lua	2024-11-22 23:11:06

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2019-05-08 18:28:56

#	User	Runtime	Language	Date
1	Arne Tobias Malkenes Ødegaard	0.03 s	Python 2	2018-10-06 11:20:07
2	Didrik Rokhaug	0.03 s	Python 2	2018-10-06 12:46:18
3	Jesper Öqvist	0.03 s	Python 2	2018-10-06 17:44:52
4	Øyvind Haarberg	0.03 s	Python 2	2018-10-06 17:46:25
5	Lars Åström	0.03 s	Python 2	2018-10-06 18:44:01
6	Björn Magnusson	0.03 s	Python 2	2018-10-06 20:51:42
7	Klas af Geijerstam	0.03 s	Python 2	2018-10-06 21:29:18
8	Jonas Kylling	0.03 s	Python 2	2018-10-06 22:26:58
9	Måns Magnusson	0.03 s	Python 2	2018-10-07 21:25:55
10	Asger Hautop Drewsen	0.03 s	Python 2	2018-10-08 09:43:32

#	User	Runtime	Language	Date
1	Oscar Roth Andersen	0.02 s	Python 3	2018-10-06 11:28:24
2	Vadim Šved	0.02 s	Python 3	2018-10-06 11:34:10
3	Martin Aumüller	0.02 s	Python 3	2018-10-06 11:53:17
4	Steffen Grønmo	0.02 s	Python 3	2018-10-06 12:14:54
5	Hidden user	0.02 s	Python 3	2018-10-06 12:37:35
6	Christofer Ohlsson	0.02 s	Python 3	2018-10-06 13:51:16
7	Marti Ingmar Liibert	0.02 s	Python 3	2018-10-06 14:33:23
8	William Kvaale	0.02 s	Python 3	2018-10-06 14:35:25
9	Christer Lohk	0.02 s	Python 3	2018-10-06 14:52:09
10	Hannes Kristján Hannesson	0.02 s	Python 3	2018-10-06 14:56:58

#	User	Runtime	Language	Date
1	Casper Christensen	0.05 s	Ruby	2018-10-11 17:31:56
2	Miorel Palii	0.05 s	Ruby	2018-11-03 22:55:31
3	Hidden user	0.05 s	Ruby	2019-05-27 16:07:28
4	John Rabaey	0.05 s	Ruby	2020-04-09 23:13:29
5	Ajai Nelson	0.06 s	Ruby	2023-02-04 20:02:06
6	Thomas Feld	0.06 s	Ruby	2023-02-28 15:36:34
7	Russell Ng	0.07 s	Ruby	2025-06-01 10:15:58

#	User	Runtime	Language	Date
1	Mathias Svensson	0.00 s	Rust	2019-09-21 00:04:07
2	Bas Dirks	0.00 s	Rust	2022-01-19 07:49:31
3	Daniel Anker Hermansen	0.00 s	Rust	2023-09-30 21:31:14
4	Felix Köhler	0.00 s	Rust	2024-06-02 07:30:49
5	Vincent Lagerros	0.00 s	Rust	2024-06-04 22:18:11

#	User	Length	Language	Date
1	Ivan Petrov	321	C	2019-01-11 14:37:47
2	鹿目圆	326	C	2018-10-16 09:08:23
3	Hidden user	443	C	2022-12-19 14:56:53
4	Andrew Roberts	538	C	2020-10-06 00:01:02
5	Hidden user	564	C	2025-09-05 15:52:58
6	Ruben Spaans	566	C	2018-10-12 21:38:10
7	Alexander Bilde Pedersen	603	C	2023-09-20 07:56:54
8	Terry Chan	710	C	2019-05-29 16:28:06
9	Thuy Dung Nguyen	726	C	2019-11-26 06:23:08
10	Ian Howell	764	C	2019-11-06 20:16:23

#	User	Length	Language	Date
1	Håkan Sjöström	835	C#	2019-10-04 14:21:26
2	Volodymyr Besida	1090	C#	2020-03-26 21:35:12
3	Keiron Beadle	1293	C#	2019-09-27 13:56:04
4	Chi Tran	1560	C#	2020-12-23 10:37:46
5	Mikael Fiala-Lundström	1630	C#	2021-06-18 00:20:26
6	Eivind Sorteberg	1670	C#	2023-01-26 18:05:08
7	Karl Lindblom	1736	C#	2018-10-07 18:26:25
8	Viktor Wesström	1747	C#	2018-10-07 10:47:46
9	Jacob Aufdenberg	2230	C#	2019-05-16 19:30:59
10	Dan Wolff	4075	C#	2018-10-09 19:31:44

#	User	Length	Language	Date
1	Hidden user	195	C++	2024-05-03 22:55:49
2	Hidden user	243	C++	2020-03-07 17:24:52
3	Thanhlong Le	331	C++	2019-11-24 16:40:23
4	Ricardo Pereira	346	C++	2018-10-11 00:46:41
5	Gonçalo Paredes	349	C++	2018-10-09 16:12:35
6	Theo Ebenhoech	349	C++	2018-10-16 00:27:13
7	Hua Fan Cai	351	C++	2018-10-20 18:36:35
8	Drake Cullen	353	C++	2020-10-12 04:04:27
9	DASH	355	C++	2025-08-22 07:16:01
10	Erik Dackander	356	C++	2021-11-11 13:19:22

#	User	Length	Language	Date
1	Arne Philipeit	400	Go	2019-01-30 04:42:13
2	Norbert Voelker	880	Go	2021-07-16 22:53:01
3	Neal McCarthy	1153	Go	2018-10-27 22:41:00

#	User	Length	Language	Date
1	Mason Barnhill	299	Haskell	2023-07-22 07:18:38
2	Rudy Matela	447	Haskell	2023-09-04 19:13:52
3	Brent Yorgey	504	Haskell	2018-10-11 22:29:58
4	Jannik Olbrich	582	Haskell	2023-01-19 09:35:44
5	Abel Martin	799	Haskell	2019-09-20 20:39:28
6	Isaac Arvestad	849	Haskell	2018-10-07 18:46:01
7	Hidden user	9514	Haskell	2019-11-04 10:54:37

#	User	Length	Language	Date
1	Prakash Sanyasi	487	Java	2018-12-11 18:38:54
2	Ada Clevinger	559	Java	2018-10-09 23:38:39
3	Aaron Michael	645	Java	2018-10-14 19:21:50
4	Ivan Carvalho	671	Java	2018-10-29 01:00:48
5	Max Bagatini Alves	686	Java	2024-01-17 03:34:25
6	Sam Huynh	700	Java	2021-07-30 04:49:12
7	superpatrex	705	Java	2024-01-17 06:38:23
8	Eimhin McDonald	721	Java	2019-01-26 01:16:17
9	Crystal Sharpe	722	Java	2019-10-23 21:20:35
10	Austin Bush	723	Java	2018-10-17 18:30:38

#	User	Length	Language	Date
1	Oliver Larsson	835	JavaScript (Node.js)	2022-10-14 14:51:09

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	410	JavaScript (SpiderMonkey)	2018-10-16 01:50:12
2	Christian Pilegaard Cederquist	454	JavaScript (SpiderMonkey)	2023-05-31 07:57:59
3	Johannes Jensen	478	JavaScript (SpiderMonkey)	2018-10-06 12:34:28

#	User	Length	Language	Date
1	Timothy Gaede	463	Julia	2025-10-19 09:00:58

#	User	Length	Language	Date
1	Didrik Jonassen	514	Kotlin	2018-10-13 15:07:47
2	Benjamin Laurence Erickson	524	Kotlin	2019-01-31 22:21:57
3	Jacob Huebner	525	Kotlin	2022-02-14 06:47:35
4	Adam Rankin	630	Kotlin	2023-09-21 23:13:14
5	Troy Warmboe	642	Kotlin	2018-10-20 00:46:56

#	User	Length	Language	Date
1	Caleb Austin	671	Lua	2024-11-22 23:11:06

#	User	Length	Language	Date
1	Andriy Zyevakov	559	Prolog	2019-05-08 18:28:56

#	User	Length	Language	Date
1	Thomas Feld	164	Python 2	2019-09-24 11:58:22
2	Andreas Björklund	207	Python 2	2019-03-10 16:34:40
3	Måns Magnusson	236	Python 2	2018-10-07 21:25:55
4	Maj Stenmark	236	Python 2	2018-10-08 20:23:17
5	Klas af Geijerstam	263	Python 2	2018-10-06 21:29:18
6	David Hou	268	Python 2	2018-10-19 02:37:53
7	Jonas Kylling	293	Python 2	2018-10-06 22:26:58
8	Lars Åström	301	Python 2	2018-10-06 18:44:01
9	Björn Magnusson	301	Python 2	2018-10-06 20:51:42
10	Sven Engström	306	Python 2	2019-10-04 18:29:29

#	User	Length	Language	Date
1	Benjamin Z White	114	Python 3	2023-05-13 17:35:33
2	Farzam Abrishami	132	Python 3	2024-01-28 02:02:36
3	Nino Bašić	134	Python 3	2023-01-08 03:00:14
4	Erik Adebahr	150	Python 3	2024-01-16 13:22:38
5	Ahmed Chamseddine	164	Python 3	2025-07-13 19:24:59
6	Charles Ancheta	169	Python 3	2023-03-30 02:51:42
7	Yong Mao	174	Python 3	2023-05-11 03:00:43
8	Magnus Eide-Fredriksen	180	Python 3	2024-09-15 14:06:16
9	Hidden user	215	Python 3	2021-08-09 18:21:08
10	Lawry Sorenson	220	Python 3	2024-06-23 05:19:35

#	User	Length	Language	Date
1	Thomas Feld	88	Ruby	2023-02-28 15:36:34
2	Russell Ng	106	Ruby	2025-06-01 10:20:16
3	John Rabaey	286	Ruby	2020-04-09 23:13:29
4	Hidden user	288	Ruby	2019-05-27 16:07:28
5	Miorel Palii	310	Ruby	2018-11-03 22:55:31
6	Casper Christensen	403	Ruby	2018-10-11 17:31:56
7	Ajai Nelson	454	Ruby	2023-02-04 20:02:06

#	User	Length	Language	Date
1	Bas Dirks	670	Rust	2022-01-19 07:49:31
2	Mathias Svensson	715	Rust	2019-09-21 00:04:07
3	Felix Köhler	969	Rust	2024-06-02 07:32:14
4	Vincent Lagerros	4446	Rust	2024-06-04 22:18:11
5	Daniel Anker Hermansen	27475	Rust	2023-09-30 21:31:14

Solution running time distribution