Problem P
Reverse Rot — Problem Statistics

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Submissions	6797
Accepted submissions	3915
Submission ratio	57.60%
Authors	3821
Accepted authors	3587
Author ratio	93.88%

#	User	Runtime	Language	Date
1	Robert Kyrk	0.01 s	C#	2017-01-06 23:04:44
2	Ludwig Hedeby	0.01 s	C#	2017-11-30 14:06:46
3	Jonah Heller	0.01 s	C#	2018-03-13 19:09:41
4	Jens Mossig	0.02 s	C#	2015-10-20 19:24:27
5	Faisal Rahman	0.02 s	C#	2016-01-17 11:33:19
6	Jay Hal	0.02 s	C#	2016-02-08 22:34:54
7	Luiz Miranda	0.02 s	C#	2016-04-02 20:15:00
8	Joe Amenta	0.02 s	C#	2016-04-04 23:52:15
9	Robin Grönholm	0.02 s	C#	2016-05-01 01:14:10
10	Raja Sanjeev Kumar Nakka	0.02 s	C#	2016-05-04 19:20:58

#	User	Runtime	Language	Date
1	Nicholas Lantz	0.02 s	Common Lisp	2019-04-24 22:02:42
2	David Cawthon	0.02 s	Common Lisp	2019-04-27 02:56:55

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05 s	F#	2022-07-16 10:03:03

#	User	Runtime	Language	Date
1	Krzysztof Gibuła	0.02 s	Go	2019-02-18 14:24:02
2	Hidden user	0.02 s	Go	2020-09-17 08:21:07
3	Sindhu vannemreddy	0.02 s	Go	2021-01-01 19:23:32
4	Eric Graham	0.07 s	Go	2018-09-20 05:49:03
5	Kyle Wormstadt	0.07 s	Go	2018-09-21 06:37:24
6	Sebastian Porling	0.07 s	Go	2018-09-25 23:25:05
7	Alejandro Germain	0.07 s	Go	2018-10-21 17:29:59
8	Ian Howell	0.08 s	Go	2016-05-28 18:29:19
9	Jonas S	0.08 s	Go	2017-01-10 16:50:21
10	Adam Smith	0.08 s	Go	2017-03-03 00:35:08

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Java	2025-02-08 14:04:46
2	Guangyi Zhou	0.04 s	Java	2025-03-03 08:40:48
3	Nick Wu	0.05 s	Java	2015-10-10 19:02:12
4	Erik Baalhuis	0.05 s	Java	2015-10-10 19:12:40
5	Hidden user	0.05 s	Java	2015-10-10 19:41:39
6	Dennis Ang	0.05 s	Java	2015-10-11 11:43:40
7	Luu Nhat Phi	0.05 s	Java	2015-10-11 15:38:20
8	Brandon Morris	0.05 s	Java	2015-10-12 14:54:53
9	Jan Bananberg	0.05 s	Java	2015-10-15 22:48:24
10	Muhamed Retkoceri	0.05 s	Java	2015-10-26 02:51:57

#	User	Runtime	Language	Date
1	Daniel Roeven	0.05 s	JavaScript (Node.js)	2019-05-02 21:04:45
2	James Zhao	0.05 s	JavaScript (Node.js)	2019-05-04 01:23:15
3	Hidden user	0.05 s	JavaScript (Node.js)	2024-08-31 02:25:28
4	Sander Hellesø	0.06 s	JavaScript (Node.js)	2019-04-29 22:53:47
5	John	0.09 s	JavaScript (Node.js)	2022-07-17 08:53:46
6	Hidden user	0.40 s	JavaScript (Node.js)	2019-08-06 12:17:26
7	Oliver Bredenberg	0.40 s	JavaScript (Node.js)	2019-08-28 14:31:16
8	Chris Wong	0.41 s	JavaScript (Node.js)	2021-02-19 22:43:51
9	Francois Pichot	0.42 s	JavaScript (Node.js)	2020-01-18 00:36:33
10	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-09 13:12:54

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-22 00:21:35
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-12 10:12:42
3	Tim Oram	0.01 s	JavaScript (SpiderMonkey)	2016-03-19 22:20:21
4	Adam Murphy	0.01 s	JavaScript (SpiderMonkey)	2016-03-29 02:21:18
5	Johannes Jensen	0.01 s	JavaScript (SpiderMonkey)	2016-03-29 15:04:29
6	Tor Nordqvist	0.01 s	JavaScript (SpiderMonkey)	2016-10-25 16:53:00
7	Ionel Hindorean	0.01 s	JavaScript (SpiderMonkey)	2016-11-12 12:03:27
8	Geir Magne Karlsen	0.01 s	JavaScript (SpiderMonkey)	2017-01-19 14:44:52
9	Peter Menyes	0.01 s	JavaScript (SpiderMonkey)	2017-08-26 20:49:41
10	Hai Yang Xu	0.01 s	JavaScript (SpiderMonkey)	2017-09-24 04:22:29

#	User	Runtime	Language	Date
1	Danny Robinson	0.82 s	Julia	2023-09-05 18:44:26
2	Timothy Gaede	0.82 s	Julia	2024-03-28 03:53:11

#	User	Runtime	Language	Date
1	Jacob Huebner	0.15 s	Kotlin	2020-03-17 22:35:15
2	Patrik Lilja	0.16 s	Kotlin	2018-02-19 21:18:17
3	Dayan Ruben Gonzalez	0.18 s	Kotlin	2020-10-01 19:37:34
4	Christian Epping	0.19 s	Kotlin	2018-09-19 10:42:07
5	Adam Rankin	0.19 s	Kotlin	2023-05-03 23:01:39
6	Dmitry Shostak	0.20 s	Kotlin	2018-08-20 09:58:45
7	Neil Harmon	0.20 s	Kotlin	2019-04-04 09:33:37
8	Jonathan Soo	0.21 s	Kotlin	2019-06-21 09:00:35
9	Troy Warmboe	0.24 s	Kotlin	2020-02-08 15:12:41

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-06-10 23:07:36

#	User	Runtime	Language	Date
1	羅棨洭5A14 Law Kai Hong	0.00 s	Pascal	2018-10-08 15:09:57
2	David Connolly	0.00 s	Pascal	2022-04-08 15:24:40

#	User	Runtime	Language	Date
1	Charles Reiss	0.00 s	Perl	2024-09-25 01:28:54

#	User	Runtime	Language	Date
1	Mgh Et	0.01 s	PHP	2015-10-10 19:57:50
2	Martin Dibakar Björling	0.01 s	PHP	2015-11-25 17:26:23
3	Silvena Lam	0.01 s	PHP	2016-02-10 14:40:59
4	Steven D. Wilson	0.01 s	PHP	2016-03-17 04:45:23
5	Ali Pandidan	0.01 s	PHP	2016-11-15 19:28:02
6	Jonas Lindenskov Nielsen	0.01 s	PHP	2019-09-01 19:03:46
7	Helbin Grégory	0.01 s	PHP	2020-09-09 15:12:33
8	cojonas1	0.01 s	PHP	2021-01-26 11:39:36
9	Renate	0.01 s	PHP	2021-06-20 22:54:56
10	Andre Wahyudi	0.01 s	PHP	2023-03-15 08:11:58

#	User	Runtime	Language	Date
1	Hadi Qovaizi	0.01 s	Prolog	2016-05-07 19:27:54
2	Andriy Zyevakov	0.01 s	Prolog	2019-04-13 06:59:32
3	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-06 19:50:27

#	User	Runtime	Language	Date
1	Asger Hautop Drewsen	0.02 s	Python 2	2015-11-03 20:23:57
2	Tore Norderud	0.02 s	Python 2	2015-11-12 03:04:32
3	Nan Jiang	0.02 s	Python 2	2015-12-20 20:48:32
4	Urban Pettersson	0.02 s	Python 2	2016-02-01 20:32:29
5	Scott Handelman	0.02 s	Python 2	2016-04-15 03:55:13
6	Maksym Bendeberia	0.02 s	Python 2	2016-08-20 17:25:56
7	Martin Jackson	0.02 s	Python 2	2016-08-26 00:01:40
8	Xiao Xin	0.02 s	Python 2	2016-08-31 06:48:07
9	Lars Lindgren	0.02 s	Python 2	2016-09-28 19:53:13
10	Ryan Lindsey	0.02 s	Python 2	2016-10-02 22:08:30

#	User	Runtime	Language	Date
1	Jim Zhang	0.02 s	Python 3	2015-10-10 19:18:21
2	Hunter Herman	0.02 s	Python 3	2015-10-10 19:40:10
3	Theodore Derego	0.02 s	Python 3	2015-10-10 20:06:04
4	Johnson Zhong	0.02 s	Python 3	2015-10-10 20:27:20
5	Neil Girdhar	0.02 s	Python 3	2015-10-10 20:33:25
6	So Kimsu	0.02 s	Python 3	2015-10-10 21:17:59
7	Susan Fox	0.02 s	Python 3	2015-10-10 21:19:41
8	Trung Nguyen	0.02 s	Python 3	2015-10-10 22:20:47
9	Emil Riis Hansen	0.02 s	Python 3	2015-10-15 11:57:12
10	Frederik Højholt	0.02 s	Python 3	2015-10-17 15:51:35

#	User	Runtime	Language	Date
1	Jinwoo Lee	0.22 s	Racket	2025-02-01 20:02:49

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2015-12-31 15:13:02
2	Gerry Hall	0.03 s	Ruby	2016-03-27 21:52:54
3	Lasse Berglund	0.03 s	Ruby	2016-03-28 12:20:03
4	Kellen Watt	0.03 s	Ruby	2016-04-17 06:00:40
5	Erik Rydbert	0.03 s	Ruby	2016-07-07 16:46:09
6	Jeff Matocha	0.03 s	Ruby	2016-10-18 05:56:39
7	Kevin Suwala	0.03 s	Ruby	2017-01-08 22:08:34
8	Hidden user	0.03 s	Ruby	2017-05-07 09:08:44
9	Clifford Owino	0.03 s	Ruby	2017-05-25 06:19:22
10	Charlie Egan	0.03 s	Ruby	2017-05-26 17:33:20

#	User	Runtime	Language	Date
1	Dayan Darias	0.04 s	TypeScript	2025-04-17 20:03:24

#	User	Length	Language	Date
1	Martin Blom	251	C	2024-01-09 10:25:26
2	Ehsan Shoja	495	C	2018-06-28 17:54:47
3	Ximun Castoreo	515	C	2020-10-15 10:20:30
4	Donikon Fajar	523	C	2018-11-12 07:01:01
5	Mathias Lind	547	C	2019-09-27 15:27:11
6	Joakim Blikstad	548	C	2015-11-02 12:49:54
7	Raphael Alexander	551	C	2022-01-24 23:38:23
8	Daniel Widjaja	575	C	2020-10-05 19:58:55
9	Matthew Weston	576	C	2022-01-17 16:21:00
10	官毓韋	592	C	2018-09-29 14:25:10

#	User	Length	Language	Date
1	Göran Andersson	602	C#	2022-05-13 16:54:05
2	Khin Nyunt	657	C#	2016-09-22 07:38:44
3	李陆屿	671	C#	2019-05-07 12:52:13
4	Fernanda Ferrer Ortega	686	C#	2023-05-05 18:33:09
5	María José López Sánchez	697	C#	2023-04-28 17:21:49
6	Kunwei Zhang	702	C#	2018-02-06 07:49:09
7	John Ladera	718	C#	2018-04-28 17:04:31
8	AnVi	718	C#	2020-09-28 14:34:20
9	Who Knows	718	C#	2020-11-29 16:02:46
10	Kalle Hansen	718	C#	2021-04-20 21:56:32

#	User	Length	Language	Date
1	Admasu Abera	263	C++	2021-06-15 09:58:10
2	Johan Wind	300	C++	2015-11-30 13:38:23
3	妹様万歳	309	C++	2020-03-04 09:57:24
4	Lee Hoon Nguyễn	338	C++	2018-10-17 04:30:46
5	Steven Tang	338	C++	2020-12-16 07:35:24
6	Bryan Wong Wei Heng	340	C++	2020-03-24 19:00:28
7	Clement Oh	343	C++	2023-10-02 05:31:09
8	Никита Кулик	346	C++	2022-08-12 12:28:24
9	Hidden user	355	C++	2016-04-28 18:29:15
10	Hugo Eberhard	358	C++	2016-05-02 20:53:48

#	User	Length	Language	Date
1	David Cawthon	539	Common Lisp	2019-04-27 02:56:55
2	Nicholas Lantz	762	Common Lisp	2019-04-24 22:02:42

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	708	F#	2022-07-16 10:03:03

#	User	Length	Language	Date
1	Wojtek Bednarzak	441	Go	2018-05-01 00:41:07
2	Krzysztof Gibuła	726	Go	2019-02-18 14:24:02
3	Ian Howell	818	Go	2016-05-28 18:29:19
4	Sebastian Porling	819	Go	2018-09-25 23:25:05
5	Adam Smith	825	Go	2017-03-03 00:35:08
6	Eric Graham	849	Go	2018-09-20 05:49:03
7	Alejandro Germain	920	Go	2018-10-21 17:29:59
8	Sindhu vannemreddy	922	Go	2021-01-01 19:23:32
9	Kyle Wormstadt	943	Go	2018-09-21 06:37:24
10	Hidden user	979	Go	2017-12-08 01:16:29

#	User	Length	Language	Date
1	David Wärn	259	Haskell	2015-10-25 14:42:21
2	Zach Tschetter	262	Haskell	2019-04-21 21:36:22
3	Peter Deal	280	Haskell	2016-05-07 05:46:47
4	Steinar Simonnes	315	Haskell	2023-09-30 23:42:30
5	Matthew Johnson	354	Haskell	2017-01-27 07:43:45
6	Jean-Alexandre Barszcz	368	Haskell	2018-10-17 00:26:57
7	Fran Cruz Zamorano	389	Haskell	2018-08-31 20:51:04
8	Anthony Clark	392	Haskell	2017-03-03 01:07:09
9	Carl Agrell	434	Haskell	2016-09-28 14:59:43
10	Sebastian Banert	434	Haskell	2023-10-05 19:23:51

#	User	Length	Language	Date
1	Anass Filali	488	Java	2016-09-24 11:58:08
2	Anirudh Rahul	501	Java	2016-08-07 07:20:48
3	Raymond Arrington	502	Java	2024-06-18 04:38:41
4	Iqrar Agalosi Nureyza	503	Java	2019-04-06 18:22:30
5	Hidden user	504	Java	2020-06-16 15:20:54
6	Robert Slutsky	509	Java	2017-06-26 22:46:12
7	Ayoub El Yaquine	510	Java	2016-12-01 23:11:32
8	Emilie Hyslop	510	Java	2021-01-09 23:10:05
9	Brian Scott	511	Java	2016-09-14 23:58:07
10	Rahul Shanmugham	511	Java	2020-02-28 20:57:31

#	User	Length	Language	Date
1	Daniel Roeven	577	JavaScript (Node.js)	2019-05-02 21:04:45
2	James Zhao	734	JavaScript (Node.js)	2019-05-04 01:23:15
3	Hidden user	883	JavaScript (Node.js)	2023-08-20 22:17:36
4	Francois Pichot	931	JavaScript (Node.js)	2020-01-18 00:36:33
5	Hidden user	936	JavaScript (Node.js)	2019-08-06 12:17:26
6	Chris Wong	977	JavaScript (Node.js)	2021-02-19 22:43:51
7	Khin Nyunt	1086	JavaScript (Node.js)	2021-11-29 11:42:38
8	Howard Tin Chi Chan	1129	JavaScript (Node.js)	2021-02-19 21:56:08
9	Andoko Chandra	1211	JavaScript (Node.js)	2020-10-09 13:12:54
10	Sander Hellesø	1272	JavaScript (Node.js)	2019-04-29 22:53:47

#	User	Length	Language	Date
1	Jimmy Gustafsson	185	JavaScript (SpiderMonkey)	2024-06-16 23:52:23
2	Peter Menyes	290	JavaScript (SpiderMonkey)	2017-08-26 20:58:47
3	Johannes Jensen	346	JavaScript (SpiderMonkey)	2016-03-29 15:04:29
4	Peter Kedemo	368	JavaScript (SpiderMonkey)	2015-12-22 00:21:35
5	Casey Smith	431	JavaScript (SpiderMonkey)	2019-05-22 20:59:25
6	Hai Yang Xu	518	JavaScript (SpiderMonkey)	2017-09-24 04:22:29
7	Evan Magill	518	JavaScript (SpiderMonkey)	2024-04-26 03:19:01
8	Davíð Helgason	544	JavaScript (SpiderMonkey)	2019-06-20 23:35:14
9	Andrea Bianchessi	548	JavaScript (SpiderMonkey)	2018-08-27 14:17:11
10	Ionel Hindorean	569	JavaScript (SpiderMonkey)	2016-11-12 12:03:27

#	User	Length	Language	Date
1	Danny Robinson	120	Julia	2023-09-05 18:44:26
2	Timothy Gaede	851	Julia	2024-03-28 03:53:11

#	User	Length	Language	Date
1	Adam Rankin	345	Kotlin	2023-05-03 23:01:39
2	Jonathan Soo	422	Kotlin	2019-06-21 09:00:35
3	Dmitry Shostak	499	Kotlin	2018-08-20 09:58:45
4	Troy Warmboe	506	Kotlin	2020-02-08 15:12:41
5	Dayan Ruben Gonzalez	567	Kotlin	2020-10-01 19:37:34
6	Patrik Lilja	693	Kotlin	2018-02-19 21:18:17
7	Christian Epping	743	Kotlin	2018-09-19 10:42:07
8	Neil Harmon	764	Kotlin	2019-04-04 09:33:37
9	Jacob Huebner	828	Kotlin	2020-03-17 22:35:15

#	User	Length	Language	Date
1	Hidden user	821	Odin	2025-06-10 23:07:36

#	User	Length	Language	Date
1	David Connolly	675	Pascal	2022-04-08 15:24:40
2	羅棨洭5A14 Law Kai Hong	710	Pascal	2018-10-08 15:09:57

#	User	Length	Language	Date
1	Charles Reiss	68	Perl	2024-09-25 01:39:28

#	User	Length	Language	Date
1	Steven D. Wilson	401	PHP	2016-03-17 04:45:23
2	Silvena Lam	447	PHP	2016-02-10 14:40:59
3	Renate	517	PHP	2021-06-20 22:54:56
4	Ali Pandidan	551	PHP	2016-11-15 19:28:02
5	cojonas1	567	PHP	2021-01-26 11:39:36
6	Mgh Et	573	PHP	2015-10-10 19:57:50
7	Jonas Lindenskov Nielsen	843	PHP	2019-09-01 19:03:46
8	Martin Dibakar Björling	1035	PHP	2015-11-25 17:26:23
9	Andre Wahyudi	1078	PHP	2023-03-15 08:11:58
10	Helbin Grégory	1440	PHP	2020-09-09 15:12:33

#	User	Length	Language	Date
1	Hakan Kjellerstrand	524	Prolog	2023-02-06 19:50:27
2	Andriy Zyevakov	1258	Prolog	2019-04-13 06:59:32
3	Hadi Qovaizi	5981	Prolog	2016-05-07 19:27:54

#	User	Length	Language	Date
1	Thomas Feld	186	Python 2	2019-08-19 13:15:58
2	Conor McCauley	213	Python 2	2019-03-20 07:49:37
3	Hidden user	213	Python 2	2019-11-24 17:06:20
4	Asger Hautop Drewsen	218	Python 2	2015-11-03 20:23:57
5	Miguel Alfageme Sanchez	237	Python 2	2017-02-03 21:15:31
6	Andrew Yang	237	Python 2	2017-04-07 00:20:23
7	Tore Norderud	238	Python 2	2015-11-12 03:04:32
8	Kristmundur Agust	243	Python 2	2016-02-09 19:01:57
9	Jeff Robertson	247	Python 2	2017-10-11 23:57:43
10	Snild Dolkow	257	Python 2	2015-10-18 09:23:15

#	User	Length	Language	Date
1	Charles Ancheta	131	Python 3	2023-04-07 22:37:12
2	Harry Zhang	133	Python 3	2022-12-21 20:45:10
3	Morten Clausen	134	Python 3	2022-10-24 23:41:06
4	Adam Levav	136	Python 3	2023-01-25 01:49:24
5	Lawry Sorenson	143	Python 3	2023-07-15 00:11:38
6	Tai Tze Kin	150	Python 3	2024-05-01 21:31:58
7	Hidden user	165	Python 3	2020-02-19 07:32:01
8	Zayar Htet	167	Python 3	2020-02-19 07:39:46
9	Eduardo Vicente Petry	168	Python 3	2023-01-10 08:18:05
10	Ahmed Chamseddine	172	Python 3	2024-07-04 16:43:41

#	User	Length	Language	Date
1	Jinwoo Lee	1040	Racket	2025-02-01 20:02:49

#	User	Length	Language	Date
1	Thomas Feld	67	Ruby	2024-10-14 11:38:05
2	Régis Hanol	196	Ruby	2022-01-17 18:30:13
3	Charlie Egan	240	Ruby	2017-05-26 17:33:20
4	Hidden user	244	Ruby	2017-10-02 12:41:34
5	Gerry Hall	246	Ruby	2016-03-27 21:52:54
6	Casper Christensen	254	Ruby	2015-12-31 15:13:02
7	Kevin Suwala	265	Ruby	2017-01-08 22:08:34
8	Clifford Owino	333	Ruby	2017-05-25 06:19:22
9	Abolfazl Gol	333	Ruby	2018-08-01 08:11:59
10	Macdara mac an tSionnaigh	338	Ruby	2019-09-14 15:28:58

#	User	Length	Language	Date
1	David Zacek	526	Rust	2021-05-29 14:29:41
2	Vincent Lagerros	607	Rust	2025-02-06 02:41:18
3	Chaoyi Yin	789	Rust	2019-03-27 19:43:26
4	Hidden user	790	Rust	2019-05-04 22:45:47
5	Pankajkumar Patro	798	Rust	2024-11-09 15:44:46
6	Hidden user	811	Rust	2021-02-23 12:44:07
7	Joshua Ji	885	Rust	2020-10-26 05:05:49
8	Kok Dith	901	Rust	2021-08-11 11:56:28
9	Bas Dirks	995	Rust	2022-01-03 09:20:43
10	Fred Morcos	1044	Rust	2018-11-25 22:18:16

#	User	Length	Language	Date
1	Dayan Darias	3841	TypeScript	2025-04-17 20:03:24

Solution running time distribution