Problem A
Cudoviste — Problem Statistics

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Submissions	5459
Accepted submissions	3777
Submission ratio	69.19%
Authors	3550
Full solves [?]	3423
Full solve Ratio	96.42%

#	User	Runtime	Language	Date
1	Thomas Feld	0.02 s	APL	2023-05-15 13:52:57
2	Steve Allen	0.03 s	APL	2023-05-13 08:27:50
3	Max NC	0.03 s	APL	2023-09-11 23:53:25

#	User	Runtime	Language	Date
1	Valeriy Titov	0.02 s	C#	2017-08-19 21:03:54
2	Henric Johansson	0.02 s	C#	2017-10-04 14:49:05
3	James Church	0.02 s	C#	2017-10-06 00:02:12
4	Ólafur Andri	0.02 s	C#	2017-10-12 01:18:37
5	Johan Pettersson	0.02 s	C#	2017-10-13 08:03:31
6	Stewart Nagle	0.02 s	C#	2017-11-02 23:47:47
7	Hidden user	0.02 s	C#	2017-11-12 23:06:54
8	Fausto Piras	0.02 s	C#	2017-11-14 11:49:44
9	Stefano Fibbi	0.02 s	C#	2017-11-14 19:29:31
10	Oscar Arrivi Garcia	0.02 s	C#	2017-11-16 23:22:41

#	User	Runtime	Language	Date
1	wibi	0.01 s	Common Lisp	2020-08-26 12:19:25
2	yraten	0.01 s	Common Lisp	2024-04-15 03:12:58
3	David Cawthon	0.02 s	Common Lisp	2019-05-01 02:48:04

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-05-31 21:50:59
2	Patrick Bahr	0.04 s	F#	2021-02-13 17:00:23
3	David Vinje	0.06 s	F#	2022-08-07 18:25:11
4	Stefan Schmiedl	0.08 s	F#	2024-09-13 19:02:22

#	User	Runtime	Language	Date
1	Luna Johnson	0.00 s	Go	2025-03-27 04:33:47
2	Mohamed Ramrami	0.02 s	Go	2020-05-01 14:02:11
3	Jimmy Nejtron	0.02 s	Go	2022-12-23 16:16:39
4	Krzysztof Gibuła	0.07 s	Go	2019-02-16 11:13:58
5	Norbert Voelker	0.08 s	Go	2021-04-09 19:25:48
6	Lucca Dias	0.08 s	Go	2021-11-15 12:58:35
7	Hidden user	0.08 s	Go	2021-12-16 10:49:24
8	Andreas Lindström	0.09 s	Go	2017-12-22 16:35:54
9	Josh Chandler	0.09 s	Go	2018-02-20 22:08:30
10	Alexandru Bonini	0.09 s	Go	2018-04-09 23:49:24

#	User	Runtime	Language	Date
1	Lieven Marchand	0.00 s	Haskell	2017-09-05 15:53:50
2	Morten Lohne	0.00 s	Haskell	2017-09-13 18:51:17
3	Brent Yorgey	0.00 s	Haskell	2017-10-08 04:17:20
4	Joseph McKinsey	0.00 s	Haskell	2017-10-28 22:46:28
5	Erik Rimskog	0.00 s	Haskell	2017-12-24 01:18:43
6	Matthew A Johnson	0.00 s	Haskell	2018-02-13 05:15:35
7	Sebastian Banert	0.00 s	Haskell	2023-04-02 17:50:54
8	Rudy Matela	0.00 s	Haskell	2024-04-03 13:51:42
9	Maxim Sokolov	0.01 s	Haskell	2018-07-06 05:50:30
10	Håkon Flatval	0.01 s	Haskell	2018-08-21 00:44:39

#	User	Runtime	Language	Date
1	Tuomas Maanonen	0.04 s	Java	2024-10-06 09:57:18
2	Guangyi Zhou	0.04 s	Java	2025-05-16 04:10:21
3	Martijn Muijsers	0.05 s	Java	2017-05-21 01:44:16
4	Micah Stairs	0.05 s	Java	2017-05-26 19:36:26
5	Finn Lidbetter	0.05 s	Java	2017-06-09 00:29:09
6	Isaac Lee	0.05 s	Java	2017-06-09 01:35:38
7	James Black	0.05 s	Java	2017-06-09 18:26:59
8	Nick Wu	0.05 s	Java	2017-06-16 07:17:00
9	Samuel Klingström	0.05 s	Java	2017-07-28 13:13:12
10	Steven Cheng	0.05 s	Java	2017-09-02 19:24:44

#	User	Runtime	Language	Date
1	Carl Sundvall	0.05 s	JavaScript (Node.js)	2018-10-28 19:56:44
2	Hidden user	0.05 s	JavaScript (Node.js)	2024-07-08 04:24:08
3	John	0.42 s	JavaScript (Node.js)	2020-07-20 12:17:50
4	Chris Wong	0.42 s	JavaScript (Node.js)	2021-02-01 23:06:23
5	Ali	0.42 s	JavaScript (Node.js)	2021-12-19 21:33:18
6	Niamh Limerick	0.43 s	JavaScript (Node.js)	2022-02-18 15:07:23
7	Andoko Chandra	0.44 s	JavaScript (Node.js)	2020-10-01 20:14:47

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2017-05-22 05:39:23
2	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2017-06-04 11:56:49
3	Luk Ming Kit	0.01 s	JavaScript (SpiderMonkey)	2017-11-04 21:24:10
4	Nicklas Utgaard	0.01 s	JavaScript (SpiderMonkey)	2017-12-31 16:13:40
5	Alexander Borodach	0.01 s	JavaScript (SpiderMonkey)	2018-02-06 12:49:18
6	Zachary DeStefano	0.01 s	JavaScript (SpiderMonkey)	2018-02-24 21:02:08
7	Jeremy	0.01 s	JavaScript (SpiderMonkey)	2018-03-16 09:18:43
8	Nathan Marks	0.01 s	JavaScript (SpiderMonkey)	2018-04-06 16:55:16
9	Ilmars Lacplesis	0.01 s	JavaScript (SpiderMonkey)	2018-04-11 20:20:09
10	Tuomo Olavi	0.01 s	JavaScript (SpiderMonkey)	2018-04-12 09:19:25

#	User	Runtime	Language	Date
1	Timothy Gaede	0.62 s	Julia	2024-03-22 06:39:47
2	Danny Robinson	0.79 s	Julia	2023-06-28 01:46:34

#	User	Runtime	Language	Date
1	Albert Pala	0.11 s	Kotlin	2021-05-27 14:33:31
2	Jacob Huebner	0.14 s	Kotlin	2020-06-25 16:19:07
3	Johnny Baloney	0.14 s	Kotlin	2022-02-15 11:48:51
4	Gaurav Tyagi	0.16 s	Kotlin	2018-10-29 13:42:22
5	James WIlliams	0.17 s	Kotlin	2020-12-31 08:25:51
6	Roy Liu	0.19 s	Kotlin	2023-08-14 17:46:23
7	Nikolai Grieg	0.20 s	Kotlin	2017-10-12 20:17:28
8	Stefan Kennedy	0.20 s	Kotlin	2017-12-05 18:41:34
9	Sarek Høverstad Skotåm	0.20 s	Kotlin	2020-10-10 14:55:51
10	Adam Rankin	0.20 s	Kotlin	2023-05-04 18:44:58

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-04-25 05:29:14

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-09-04 07:16:25
2	David Connolly	0.00 s	Pascal	2017-09-11 18:33:55
3	nhuanh	0.00 s	Pascal	2019-08-22 17:20:00
4	Dũ Quốc Huy	0.00 s	Pascal	2019-08-23 18:03:11

#	User	Runtime	Language	Date
1	Saito Ta	0.01 s	Perl	2024-03-29 08:56:09

#	User	Runtime	Language	Date
1	Morten Mehus	0.01 s	PHP	2017-09-13 18:18:50
2	Emil Riis Hansen	0.01 s	PHP	2018-10-30 09:31:36
3	Renate Fiala-Lundström	0.01 s	PHP	2021-05-01 00:48:30
4	Andre Wahyudi	0.01 s	PHP	2022-09-22 05:18:50
5	Susanne Ragnemalm	0.01 s	PHP	2024-05-11 18:09:47

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.03 s	Prolog	2023-01-21 11:47:09

#	User	Runtime	Language	Date
1	Daniel Strizhevsky	0.03 s	Python 2	2017-06-26 06:34:51
2	Matthew Anderson	0.03 s	Python 2	2017-06-28 23:38:36
3	Sala Gabriel	0.03 s	Python 2	2017-08-07 03:06:13
4	Harrison Brown	0.03 s	Python 2	2017-09-02 20:38:30
5	Minh Le	0.03 s	Python 2	2017-09-02 21:59:54
6	Çağdaş Öztekin	0.03 s	Python 2	2017-09-03 21:47:57
7	Justin Su	0.03 s	Python 2	2017-09-25 07:50:42
8	Henry Schmale	0.03 s	Python 2	2017-09-28 21:53:43
9	Edan Meyer	0.03 s	Python 2	2017-10-05 19:57:36
10	Kristmundur Agust	0.03 s	Python 2	2017-10-07 02:03:55

#	User	Runtime	Language	Date
1	Sigurður Helgason	0.02 s	Python 3	2017-06-13 13:30:26
2	Cian Ruane	0.02 s	Python 3	2017-06-18 15:27:08
3	Anne Zou	0.02 s	Python 3	2017-06-30 02:18:27
4	Samvrutta Tumuluru	0.02 s	Python 3	2017-07-01 01:55:55
5	Денис Соболев	0.02 s	Python 3	2017-07-02 13:26:14
6	Yunhua Zhao	0.02 s	Python 3	2017-07-02 20:31:32
7	Blake Hyde	0.02 s	Python 3	2017-08-20 21:02:59
8	Frans Bergman	0.02 s	Python 3	2017-09-02 13:43:33
9	Xincheng Tan	0.02 s	Python 3	2017-09-02 21:22:40
10	Evimar Principal de Soto	0.02 s	Python 3	2017-09-03 20:04:44

#	User	Runtime	Language	Date
1	Jonathan Ogden	0.05 s	Ruby	2021-05-26 21:51:13
2	Régis Hanol	0.05 s	Ruby	2022-01-07 00:02:21
3	TobiasZ	0.05 s	Ruby	2022-01-21 17:32:41
4	Yusuke Ichiki	0.05 s	Ruby	2022-05-06 07:56:22
5	Hadi Qovaizi	0.06 s	Ruby	2021-07-18 16:01:52
6	dick move	0.06 s	Ruby	2022-12-03 20:06:50
7	Thomas Feld	0.06 s	Ruby	2023-01-30 15:58:04
8	Alexander Bilde Pedersen	0.06 s	Ruby	2023-04-08 18:05:58
9	Alex soulman	0.06 s	Ruby	2024-01-07 21:51:38
10	Frederik Petersen	0.06 s	Ruby	2024-04-02 14:07:51

#	User	Runtime	Language	Date
1	Danial Haseeb	0.00 s	Swift	2023-10-09 18:37:43

#	User	Length	Language	Date
1	Steve Allen	75	APL	2023-05-13 08:41:26
2	Thomas Feld	90	APL	2023-05-15 13:52:57
3	Max NC	127	APL	2023-09-11 23:54:35

#	User	Length	Language	Date
1	Benjamin Iserman	272	C	2023-03-03 03:21:40
2	Martin Blom	366	C	2023-09-20 10:15:08
3	Lee Geng Yu	566	C	2017-12-21 09:54:30
4	Hidden user	585	C	2018-10-28 18:49:25
5	Andros Clarence Chen	594	C	2021-02-13 16:32:35
6	Stiff	602	C	2021-06-25 13:15:13
7	Mustapha Slimani	604	C	2020-10-30 15:56:01
8	Anas Limouri	610	C	2017-11-15 22:20:17
9	Richard Miller	619	C	2017-10-13 02:06:42
10	Juan Trilnardo Defrin	632	C	2021-01-24 14:28:18

#	User	Length	Language	Date
1	Gregory Sinclair	461	C#	2023-11-10 17:42:56
2	Mikael Palokangas	518	C#	2023-01-18 13:09:11
3	Pontus Magnusson	738	C#	2024-03-31 22:55:23
4	Esty Crow	840	C#	2022-10-05 21:42:58
5	Göran Andersson	975	C#	2022-05-07 23:20:31
6	Kunwei Zhang	992	C#	2018-02-09 12:40:14
7	Bjarke Brodin	993	C#	2020-10-11 16:46:52
8	Jesper Lundin	1010	C#	2021-10-01 22:32:28
9	Hidden user	1012	C#	2023-01-26 05:54:10
10	Natalia Álvarez Del Castillo García	1076	C#	2023-11-29 04:27:05

#	User	Length	Language	Date
1	Frederick Pek	426	C++	2021-05-31 05:53:58
2	Đoàn Công Chính	427	C++	2018-02-03 05:40:53
3	Evan Michael Bailey	444	C++	2024-05-31 19:04:44
4	Ganapathy Sanath Balaji	460	C++	2019-11-09 03:58:04
5	Johan Wind	472	C++	2018-03-15 02:56:25
6	Kevin Kauffman	479	C++	2021-12-24 22:48:02
7	Nguyễn Công Cường	481	C++	2019-08-21 10:02:20
8	Đậu Huy Minh	487	C++	2022-10-09 06:38:32
9	Hoàng Bá Tuân	495	C++	2018-02-06 14:36:53
10	陳柏余	509	C++	2021-11-06 09:12:23

#	User	Length	Language	Date
1	wibi	803	Common Lisp	2020-08-26 12:19:25
2	yraten	993	Common Lisp	2024-04-15 03:12:58
3	David Cawthon	1357	Common Lisp	2019-05-01 02:48:04

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	803	F#	2022-05-31 21:50:59
2	Stefan Schmiedl	1001	F#	2024-09-13 19:02:22
3	David Vinje	1013	F#	2022-08-07 18:25:11
4	Patrick Bahr	2315	F#	2021-02-13 17:00:23

#	User	Length	Language	Date
1	Hidden user	487	Go	2021-12-16 10:49:24
2	Jimmy Nejtron	689	Go	2022-12-23 16:16:39
3	Lucca Dias	844	Go	2021-11-15 12:58:35
4	Mohamed Ramrami	850	Go	2020-05-01 14:02:11
5	Luna Johnson	887	Go	2025-03-27 04:33:47
6	Andreas Lindström	952	Go	2017-12-22 16:35:54
7	Krzysztof Gibuła	1015	Go	2019-02-16 11:13:58
8	Norbert Voelker	1020	Go	2021-04-09 19:25:48
9	Alexandru Bonini	1038	Go	2018-04-09 23:49:24
10	Josh Chandler	1056	Go	2018-02-20 22:08:30

#	User	Length	Language	Date
1	Hidden user	450	Haskell	2019-08-13 16:08:21
2	David Zacek	470	Haskell	2021-05-03 01:10:37
3	Sebastian Banert	474	Haskell	2023-04-02 17:50:54
4	Brent Yorgey	554	Haskell	2017-10-08 04:17:20
5	Llaurence Git	638	Haskell	2018-11-06 21:53:00
6	Lieven Marchand	663	Haskell	2017-09-05 15:53:50
7	Joseph McKinsey	701	Haskell	2017-10-28 22:46:28
8	Oisín Mac Fhearaí	708	Haskell	2021-01-12 01:44:39
9	Matthew A Johnson	724	Haskell	2018-02-13 05:15:35
10	Daniel Cabral	724	Haskell	2022-02-14 08:33:03

#	User	Length	Language	Date
1	Amon Al-khatib	666	Java	2018-03-10 06:55:14
2	Nathan Huckleberry	704	Java	2018-09-19 23:00:46
3	Lim Ting Kai	706	Java	2023-06-24 22:10:36
4	Raymond Arrington	736	Java	2024-06-07 23:39:30
5	Alex Coleman	745	Java	2018-03-10 06:48:55
6	Ryan L.	765	Java	2018-04-07 08:29:35
7	Caeden Whitaker	767	Java	2020-07-01 07:20:31
8	Åke Wettergren	768	Java	2019-11-24 16:48:17
9	Alex Jones	784	Java	2018-01-27 17:56:39
10	Tyler VanHaren	788	Java	2018-03-14 00:23:38

#	User	Length	Language	Date
1	Chris Wong	673	JavaScript (Node.js)	2021-02-01 23:06:23
2	Hidden user	960	JavaScript (Node.js)	2023-02-04 05:18:59
3	Ali	1070	JavaScript (Node.js)	2021-12-19 21:33:18
4	Andoko Chandra	1330	JavaScript (Node.js)	2020-10-01 20:14:47
5	Niamh Limerick	1516	JavaScript (Node.js)	2022-02-18 15:07:23
6	John	1596	JavaScript (Node.js)	2020-07-20 12:17:50
7	Carl Sundvall	1799	JavaScript (Node.js)	2018-10-28 19:56:44

#	User	Length	Language	Date
1	Simon Titkó	421	JavaScript (SpiderMonkey)	2023-12-22 14:09:51
2	Christian Pilegaard Cederquist	426	JavaScript (SpiderMonkey)	2022-11-03 22:01:22
3	Jimmy Gustafsson	447	JavaScript (SpiderMonkey)	2022-06-23 21:27:36
4	Peter Menyes	451	JavaScript (SpiderMonkey)	2017-09-03 21:25:02
5	Bjørn Chr. Soltvedt	557	JavaScript (SpiderMonkey)	2017-05-22 05:39:23
6	Zachary DeStefano	590	JavaScript (SpiderMonkey)	2018-02-24 21:02:08
7	Evan Magill	621	JavaScript (SpiderMonkey)	2024-04-05 20:38:22
8	Nicklas Utgaard	676	JavaScript (SpiderMonkey)	2017-12-31 16:13:40
9	Tuomo Olavi	734	JavaScript (SpiderMonkey)	2018-04-12 09:19:25
10	Jeremy	812	JavaScript (SpiderMonkey)	2018-03-16 09:18:43

#	User	Length	Language	Date
1	Danny Robinson	183	Julia	2023-06-28 01:46:34
2	Timothy Gaede	1184	Julia	2024-03-22 06:39:47

#	User	Length	Language	Date
1	Hidden user	307	Kotlin	2023-08-29 12:57:50
2	axl	546	Kotlin	2019-08-06 14:32:28
3	Eric Sjöström	702	Kotlin	2023-08-13 14:58:35
4	Jacob Huebner	714	Kotlin	2020-06-25 16:19:07
5	Troy Warmboe	718	Kotlin	2020-02-06 22:37:15
6	Sergey Jakobsen	721	Kotlin	2021-06-09 16:43:49
7	Laurens Groot	735	Kotlin	2017-12-13 11:01:44
8	Adam Koprowski	737	Kotlin	2020-11-14 18:34:21
9	Adam Rankin	879	Kotlin	2023-05-04 18:44:58
10	Even Rognlien	883	Kotlin	2023-01-22 22:14:39

#	User	Length	Language	Date
1	Hidden user	1248	Odin	2025-04-25 05:29:14

#	User	Length	Language	Date
1	nhuanh	809	Pascal	2019-08-22 17:20:00
2	Ingemar Ragnemalm	830	Pascal	2017-09-04 07:16:25
3	Dũ Quốc Huy	865	Pascal	2019-08-23 18:03:11
4	David Connolly	1609	Pascal	2017-09-11 18:33:55

#	User	Length	Language	Date
1	Saito Ta	194	Perl	2024-03-29 08:56:09

#	User	Length	Language	Date
1	Renate Fiala-Lundström	764	PHP	2021-05-01 00:48:30
2	Morten Mehus	988	PHP	2017-09-13 18:18:50
3	Andre Wahyudi	1172	PHP	2022-09-22 05:18:50
4	Susanne Ragnemalm	1185	PHP	2024-05-11 18:09:47
5	Emil Riis Hansen	1610	PHP	2018-10-30 09:31:36

#	User	Length	Language	Date
1	Andriy Zyevakov	1318	Prolog	2023-01-21 11:47:09

#	User	Length	Language	Date
1	Thomas Feld	218	Python 2	2019-08-26 16:10:01
2	Conor McCauley	257	Python 2	2019-03-22 12:48:23
3	João Pedro Alvito	335	Python 2	2018-03-23 23:50:34
4	Justin Su	363	Python 2	2017-09-25 07:50:42
5	Andreas Björklund	368	Python 2	2020-11-11 21:27:47
6	Daniel Strizhevsky	388	Python 2	2017-06-26 06:34:51
7	Maksym Bendeberia	395	Python 2	2017-11-30 14:25:43
8	Maj Stenmark	396	Python 2	2020-03-28 16:26:06
9	Çağdaş Öztekin	406	Python 2	2017-09-03 21:47:57
10	Edan Meyer	424	Python 2	2017-10-05 19:57:36

#	User	Length	Language	Date
1	Simon Hellsten	156	Python 3	2023-08-08 21:34:02
2	Thomas Feld	162	Python 3	2022-11-01 10:53:14
3	Carl Pittenger	186	Python 3	2024-04-02 12:09:38
4	Benjamin Z White	192	Python 3	2023-04-04 00:15:06
5	Ahmed Chamseddine	202	Python 3	2024-03-11 13:42:28
6	Błażej Dariusz Roszkowski	209	Python 3	2022-12-02 17:42:57
7	Oskar Haarklou Veileborg	222	Python 3	2020-07-17 08:43:42
8	Soundharya	223	Python 3	2025-08-26 16:41:35
9	Josh Henderson	226	Python 3	2023-09-04 20:17:23
10	Hidden user	230	Python 3	2023-09-06 16:21:35

#	User	Length	Language	Date
1	Thomas Feld	98	Ruby	2023-01-31 08:55:21
2	dick move	99	Ruby	2022-12-03 20:26:00
3	Russell Ng	115	Ruby	2026-02-17 11:37:44
4	Alexander Bilde Pedersen	203	Ruby	2023-04-08 18:05:58
5	Régis Hanol	217	Ruby	2022-01-07 00:02:21
6	Yusuke Ichiki	291	Ruby	2022-05-06 07:56:22
7	Eugen Neagoe	312	Ruby	2026-01-28 13:44:34
8	Frederik Petersen	329	Ruby	2024-04-02 14:07:51
9	TobiasZ	522	Ruby	2022-01-21 17:32:41
10	Jonathan Ogden	547	Ruby	2021-05-26 21:51:13

#	User	Length	Language	Date
1	Vincent Lagerros	329	Rust	2024-12-09 02:26:28
2	Emil Dichmann	677	Rust	2025-08-26 15:53:35
3	Simon Grünwald	873	Rust	2023-07-10 16:22:50
4	Bas Dirks	1084	Rust	2022-01-05 20:35:35
5	Pankajkumar Patro	1104	Rust	2024-09-15 21:20:05
6	Kok Dith	1159	Rust	2021-07-31 16:24:51
7	David Rasch	1197	Rust	2020-09-14 15:30:02
8	Albert Rise Nielsen	1237	Rust	2020-10-11 01:58:10
9	Chaoyi Yin	1238	Rust	2019-04-01 16:22:26
10	Hidden user	1320	Rust	2023-08-09 20:49:25

#	User	Length	Language	Date
1	Danial Haseeb	1006	Swift	2023-10-09 18:41:46

Solution running time distribution