Problem I
Vauvau — Problem Statistics

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Submissions	4195
Accepted submissions	2347
Submission ratio	55.95%
Authors	2311
Full solves [?]	2129
Full solve Ratio	92.12%

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	APL	2023-05-24 11:39:31

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-09-09 15:44:43

#	User	Runtime	Language	Date
1	Ludwig Hedeby	0.01 s	C#	2016-10-21 19:50:02
2	Roxanne Baker	0.01 s	C#	2017-09-18 13:39:14
3	Łukasz Organiściak	0.01 s	C#	2017-09-20 23:13:17
4	Lukasz	0.01 s	C#	2017-09-20 23:14:14
5	Faisal Rahman	0.01 s	C#	2017-11-13 17:12:36
6	masosz	0.02 s	C#	2015-01-24 14:35:07
7	Mads Storm Hansen	0.02 s	C#	2015-07-18 20:19:34
8	Jonas S	0.02 s	C#	2015-08-24 16:51:33
9	Benjamin Pintér	0.02 s	C#	2016-05-24 13:37:32
10	Raja Sanjeev Kumar Nakka	0.02 s	C#	2016-06-02 18:00:48

#	User	Runtime	Language	Date
1	Oisín Mac Fhearaí	0.00 s	Crystal	2024-08-23 22:22:16

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-10-13 08:41:01
2	dix	0.06 s	F#	2024-11-19 16:56:16

#	User	Runtime	Language	Date
1	Leoš Absatz	0.02 s	Go	2020-11-16 11:57:25
2	Norbert Voelker	0.02 s	Go	2021-04-22 18:51:57
3	Ian Howell	0.08 s	Go	2016-06-07 00:40:09
4	Hussein Al Abry	0.08 s	Go	2017-02-28 19:53:23
5	Krzysztof Gibuła	0.08 s	Go	2021-04-19 22:02:18

#	User	Runtime	Language	Date
1	Rene Argento	0.04 s	Java	2025-10-10 19:39:11
2	Erik Odenman	0.05 s	Java	2011-04-04 10:24:04
3	Ashkan Jahanbakhsh	0.05 s	Java	2011-11-15 13:01:04
4	Hanif Farahmand Mokarremi	0.05 s	Java	2011-11-15 13:19:35
5	Simon Klein	0.05 s	Java	2011-11-15 19:58:58
6	Henrik Sandström	0.05 s	Java	2015-01-13 19:23:45
7	Dennis Ang	0.05 s	Java	2015-10-05 11:55:15
8	Nick Wu	0.05 s	Java	2015-10-07 23:42:51
9	Erich Wu	0.05 s	Java	2015-11-09 14:47:55
10	Michel Langeveld	0.05 s	Java	2015-12-09 08:40:05

#	User	Runtime	Language	Date
1	Carl Sundvall	0.05 s	JavaScript (Node.js)	2018-10-27 22:07:56
2	Sander Hellesø	0.05 s	JavaScript (Node.js)	2019-04-16 07:16:26
3	Samuel Högfeldt	0.09 s	JavaScript (Node.js)	2022-08-03 10:32:27
4	Jeremiah Ang	0.42 s	JavaScript (Node.js)	2020-09-10 02:15:11
5	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-13 13:34:51
6	Chris Wong	0.42 s	JavaScript (Node.js)	2021-02-24 13:26:04
7	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-03-04 23:08:10
8	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-12-11 08:08:08

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-23 12:50:46
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-02-11 20:27:24
3	Sérgio Crisóstomo	0.01 s	JavaScript (SpiderMonkey)	2016-10-06 22:17:38
4	Piotr Karpala	0.01 s	JavaScript (SpiderMonkey)	2017-09-23 04:37:22
5	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-08-21 20:20:18
6	Håkan Lindahl	0.02 s	JavaScript (SpiderMonkey)	2022-06-18 10:26:51
7	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2022-10-24 15:27:43
8	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-12 21:07:35
9	Johannes Jensen	0.03 s	JavaScript (SpiderMonkey)	2020-12-04 13:23:31

#	User	Runtime	Language	Date
1	Hidden user	0.44 s	Julia	2025-09-01 16:54:11
2	Timothy Gaede	0.62 s	Julia	2024-04-18 05:58:43
3	Danny Robinson	0.68 s	Julia	2023-09-09 15:28:07

#	User	Runtime	Language	Date
1	Jacob Huebner	0.12 s	Kotlin	2022-03-03 08:03:19
2	Michail Yaromenko	0.13 s	Kotlin	2022-05-23 16:43:49
3	Dayan Ruben Gonzalez	0.14 s	Kotlin	2020-09-30 15:15:52
4	Adam Rankin	0.18 s	Kotlin	2023-05-04 19:19:04
5	Neil Harmon	0.19 s	Kotlin	2019-04-19 10:23:39
6	Adhemar Botelo	0.19 s	Kotlin	2021-05-19 13:15:40
7	Sergey Jakobsen	0.19 s	Kotlin	2021-06-06 21:08:41
8	Sean Hagen	0.19 s	Kotlin	2021-08-23 19:29:35
9	Ahmed Waseem Saeed	0.19 s	Kotlin	2021-12-25 21:07:01
10	Nick Ivanov	0.20 s	Kotlin	2018-03-07 16:42:27

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Pascal	2011-04-03 19:21:28

#	User	Runtime	Language	Date
1	Steven D. Wilson	0.01 s	PHP	2016-03-27 19:33:30
2	Barthó Levente	0.01 s	PHP	2018-06-28 07:11:41
3	cojonas1	0.01 s	PHP	2021-02-02 15:17:51
4	Renate	0.01 s	PHP	2023-08-10 00:02:23
5	Susanne Ragnemalm	0.01 s	PHP	2024-05-08 09:35:08

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2016-01-21 00:15:24
2	Hadi Qovaizi	0.01 s	Prolog	2016-05-01 14:41:51
3	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-15 09:40:52

#	User	Runtime	Language	Date
1	Paulo Bu	0.02 s	Python 2	2015-01-23 15:52:14
2	Christofer Ohlsson	0.02 s	Python 2	2015-04-03 08:31:05
3	Jonas Kylling	0.02 s	Python 2	2015-05-06 18:05:22
4	Team Baud	0.02 s	Python 2	2015-09-08 16:12:52
5	Hans Rusten	0.02 s	Python 2	2015-10-26 13:22:23
6	Frederik Højholt	0.02 s	Python 2	2015-12-15 14:38:18
7	Denis Godunov	0.02 s	Python 2	2016-03-01 20:20:10
8	Tin Anh Nguyen	0.02 s	Python 2	2016-03-12 21:15:55
9	Alvaro Silvino	0.02 s	Python 2	2016-03-26 04:34:40
10	Hasan Ramezani	0.02 s	Python 2	2016-06-27 15:47:35

#	User	Runtime	Language	Date
1	Saša Levstik	0.02 s	Python 3	2015-05-18 10:55:00
2	James Elías Sigurðarson	0.02 s	Python 3	2015-06-03 21:32:45
3	Ziga Staresinic	0.02 s	Python 3	2015-09-09 14:03:23
4	Wayne	0.02 s	Python 3	2016-01-30 19:22:55
5	Øyvind Johansen Amundrud	0.02 s	Python 3	2016-02-19 18:05:16
6	Clint Nieuwendijk	0.02 s	Python 3	2016-02-21 15:58:00
7	Kyle Verhoog	0.02 s	Python 3	2016-02-26 07:01:25
8	Tina Zwittnig	0.02 s	Python 3	2016-03-12 08:20:34
9	Oskar Haarklou Veileborg	0.02 s	Python 3	2016-03-24 14:13:49
10	Magnus Thomé	0.02 s	Python 3	2016-04-29 20:07:43

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-02-27 14:27:59
2	Kellen Watt	0.03 s	Ruby	2016-06-04 19:39:40
3	Erik Rydbert	0.03 s	Ruby	2016-07-06 10:55:25
4	Hidden user	0.03 s	Ruby	2016-08-13 07:28:23
5	Brandon Ibbotson	0.03 s	Ruby	2017-03-17 21:25:03
6	Clifford Owino	0.03 s	Ruby	2017-05-24 10:33:22
7	Hidden user	0.05 s	Ruby	2022-01-22 16:59:45
8	Emil Kneutgen	0.05 s	Ruby	2022-01-22 20:13:48
9	Thomas Feld	0.06 s	Ruby	2023-03-10 11:38:33
10	Lasse Berglund	0.07 s	Ruby	2016-03-30 11:16:19

#	User	Length	Language	Date
1	Thomas Feld	79	APL	2023-05-24 11:41:56

#	User	Length	Language	Date
1	Danny Robinson	105	Bash	2023-09-09 15:44:43

#	User	Length	Language	Date
1	Hidden user	327	C	2014-11-01 17:37:02
2	Velvet	357	C	2020-12-09 09:35:56
3	Magnus Wass	373	C	2020-04-01 09:20:53
4	Matthew Weston	414	C	2022-02-05 17:18:28
5	test	416	C	2025-02-27 18:22:35
6	Sambit Palit	422	C	2020-10-18 23:46:50
7	Johan Öhlin	426	C	2017-09-18 13:46:50
8	Hidden user	461	C	2017-11-27 03:54:45
9	Leslie Yip	461	C	2022-08-24 09:29:43
10	winnie the pooh	462	C	2021-06-19 07:15:00

#	User	Length	Language	Date
1	Gregory Sinclair	620	C#	2023-09-21 20:31:47
2	Kunwei Zhang	676	C#	2018-02-15 08:15:06
3	Göran Andersson	689	C#	2022-05-15 20:23:51
4	Esty Crow	709	C#	2024-02-10 11:34:48
5	Ugnius Skučas	710	C#	2016-10-07 07:45:24
6	Thomas Norris	761	C#	2019-10-04 14:02:59
7	Anthony Ye	773	C#	2024-02-18 19:10:10
8	Deci Bel	856	C#	2025-05-02 20:41:00
9	Robert Low	905	C#	2016-07-14 20:32:51
10	Viktor Máni Mönster	1062	C#	2017-03-11 12:02:46

#	User	Length	Language	Date
1	Frans Meulenbroeks	188	C++	2024-10-25 15:44:40
2	Evan Magill	217	C++	2023-09-21 23:37:28
3	Sean Malloy	232	C++	2023-09-21 22:13:15
4	Johan Wind	281	C++	2018-03-31 23:19:04
5	Chen Zhe	311	C++	2020-04-15 16:30:29
6	Antonio Molina Lovett	318	C++	2016-08-06 03:32:38
7	William Gan	322	C++	2017-02-05 14:18:39
8	Herman Karlsson	323	C++	2015-04-08 21:47:11
9	traxex	326	C++	2021-11-30 17:26:47
10	Giang Đào	332	C++	2018-10-03 08:59:14

#	User	Length	Language	Date
1	Oisín Mac Fhearaí	205	Crystal	2024-08-23 22:22:16

#	User	Length	Language	Date
1	dix	420	F#	2024-11-19 16:56:16
2	Jacob Harris Cryer Kragh	950	F#	2022-10-13 08:41:01

#	User	Length	Language	Date
1	Hussein Al Abry	485	Go	2017-02-28 19:53:23
2	Leoš Absatz	512	Go	2020-11-16 11:57:25
3	Krzysztof Gibuła	771	Go	2021-04-19 22:02:18
4	Norbert Voelker	845	Go	2021-04-22 18:51:57
5	Ian Howell	933	Go	2016-06-07 00:40:09

#	User	Length	Language	Date
1	Birk Tjelmeland	232	Haskell	2017-01-09 06:51:37
2	Sebastian Banert	254	Haskell	2023-09-26 21:53:41
3	Llaurence Git	304	Haskell	2018-11-09 08:46:21
4	Steinar Simonnes	345	Haskell	2023-09-30 22:11:59
5	Christopher Whelan	360	Haskell	2025-01-27 20:16:14
6	Miguel Müller	367	Haskell	2017-11-19 17:03:36
7	Lars Tveito	368	Haskell	2015-09-27 16:52:31
8	Gabriel Skoglund	393	Haskell	2020-01-13 16:42:01
9	Håkon Flatval	417	Haskell	2018-09-02 15:50:24
10	Anthony Clays	500	Haskell	2017-01-07 18:06:16

#	User	Length	Language	Date
1	John Hershey	389	Java	2023-09-26 14:47:12
2	Doug Goodman	406	Java	2018-06-10 17:07:14
3	Qritel Abdelilah	498	Java	2017-05-22 22:00:43
4	Eric Leow Yu Quan	545	Java	2020-12-01 01:51:06
5	The_bomber	550	Java	2021-05-20 16:40:06
6	Jan Štola	559	Java	2015-05-07 15:41:22
7	Mitch Price	559	Java	2016-10-09 19:47:49
8	Dante Camarena	560	Java	2016-04-07 01:53:28
9	Natalie Axelsson	560	Java	2017-06-10 12:37:02
10	Ali Pervaiz	590	Java	2019-03-25 13:06:31

#	User	Length	Language	Date
1	Jeremiah Ang	541	JavaScript (Node.js)	2020-09-10 02:15:11
2	Samuel Högfeldt	777	JavaScript (Node.js)	2022-08-03 10:32:27
3	Howard Tin Chi Chan	936	JavaScript (Node.js)	2021-03-04 23:08:10
4	Andoko Chandra	944	JavaScript (Node.js)	2020-10-13 13:34:51
5	Chris Wong	1026	JavaScript (Node.js)	2021-02-24 13:26:04
6	Sander Hellesø	1328	JavaScript (Node.js)	2019-04-16 07:16:26
7	Carl Sundvall	1506	JavaScript (Node.js)	2018-10-27 22:07:56
8	Khin Nyunt	1872	JavaScript (Node.js)	2021-12-11 08:08:08

#	User	Length	Language	Date
1	Jimmy Gustafsson	168	JavaScript (SpiderMonkey)	2024-08-12 21:07:35
2	Peter Menyes	419	JavaScript (SpiderMonkey)	2021-08-21 20:20:18
3	Bjørn Chr. Soltvedt	501	JavaScript (SpiderMonkey)	2016-02-11 20:27:24
4	Johannes Jensen	660	JavaScript (SpiderMonkey)	2020-12-04 13:23:31
5	Peter Kedemo	665	JavaScript (SpiderMonkey)	2015-12-23 12:50:46
6	Sérgio Crisóstomo	675	JavaScript (SpiderMonkey)	2016-10-06 22:17:38
7	Håkan Lindahl	959	JavaScript (SpiderMonkey)	2022-06-18 10:26:51
8	Christian Pilegaard Cederquist	1349	JavaScript (SpiderMonkey)	2022-10-24 15:27:43
9	Piotr Karpala	3626	JavaScript (SpiderMonkey)	2017-09-23 04:37:22

#	User	Length	Language	Date
1	Danny Robinson	127	Julia	2023-09-09 15:28:07
2	Hidden user	129	Julia	2025-09-01 18:08:48
3	Timothy Gaede	1569	Julia	2024-04-18 05:58:43

#	User	Length	Language	Date
1	Sergey Jakobsen	403	Kotlin	2021-06-06 21:08:41
2	Adam Rankin	521	Kotlin	2023-05-04 19:19:04
3	Troy Warmboe	573	Kotlin	2020-02-11 20:18:37
4	Adhemar Botelo	681	Kotlin	2021-05-19 13:15:40
5	Dayan Ruben Gonzalez	693	Kotlin	2020-09-30 15:15:52
6	Einar Kjellback	757	Kotlin	2019-12-13 17:38:43
7	Aleksander	785	Kotlin	2024-11-26 15:10:15
8	Michail Yaromenko	835	Kotlin	2022-05-23 16:43:49
9	Ahmed Waseem Saeed	858	Kotlin	2021-12-25 21:07:01
10	Taylor South	888	Kotlin	2025-03-25 21:14:51

#	User	Length	Language	Date
1	Hidden user	429	Pascal	2011-04-03 19:21:28

#	User	Length	Language	Date
1	Steven D. Wilson	501	PHP	2016-03-27 19:33:30
2	Renate	619	PHP	2023-08-10 00:02:23
3	cojonas1	882	PHP	2021-02-02 15:17:51
4	Susanne Ragnemalm	931	PHP	2024-05-08 09:35:08
5	Barthó Levente	1447	PHP	2018-06-28 07:11:41

#	User	Length	Language	Date
1	Hakan Kjellerstrand	352	Prolog	2023-02-15 09:40:52
2	Andriy Zyevakov	1331	Prolog	2016-01-21 00:15:24
3	Hadi Qovaizi	16433	Prolog	2016-05-01 14:41:51

#	User	Length	Language	Date
1	Thomas Feld	136	Python 2	2019-08-23 08:57:10
2	Harald Andersson	151	Python 2	2017-06-15 09:37:18
3	Jonas Kylling	214	Python 2	2015-05-06 18:05:22
4	Justin Su	215	Python 2	2017-09-26 18:35:26
5	Haggai Liu	231	Python 2	2016-12-23 05:23:54
6	Jesper Öqvist	263	Python 2	2018-10-21 09:13:27
7	Andreas Björklund	282	Python 2	2019-12-09 15:44:08
8	Siri Dovner	288	Python 2	2016-12-04 09:08:07
9	Hasan Ramezani	296	Python 2	2016-06-27 15:47:35
10	Muzakhir Amanzholov	300	Python 2	2017-02-07 17:45:36

#	User	Length	Language	Date
1	Benjamin Z White	108	Python 3	2023-05-20 15:30:23
2	Lee Yi Heng	122	Python 3	2024-03-24 15:39:38
3	Harry Zhang	136	Python 3	2023-06-27 07:23:07
4	Ahmad Dzuizz Annajib	137	Python 3	2025-01-05 08:48:54
5	Tai Tze Kin	146	Python 3	2024-05-06 09:02:35
6	Clement Oh	158	Python 3	2023-09-18 04:19:52
7	Brandon Zhang	161	Python 3	2022-05-18 02:32:13
8	Artur Khuziakhmetov	169	Python 3	2025-01-29 14:15:51
9	Sean Malloy	170	Python 3	2023-09-21 22:38:24
10	Veronica Salm	173	Python 3	2019-11-20 18:41:20

#	User	Length	Language	Date
1	Thomas Feld	110	Ruby	2023-05-24 11:36:21
2	Erik Rydbert	411	Ruby	2016-07-06 10:55:25
3	Clifford Owino	436	Ruby	2017-05-24 10:33:22
4	Kellen Watt	461	Ruby	2016-06-04 19:39:40
5	Casper Christensen	477	Ruby	2016-02-27 14:27:59
6	Lasse Berglund	530	Ruby	2016-03-30 11:16:19
7	Hidden user	555	Ruby	2016-08-13 07:28:23
8	Hidden user	592	Ruby	2022-01-22 16:59:45
9	Brandon Ibbotson	790	Ruby	2017-03-17 21:25:03
10	Emil Kneutgen	1437	Ruby	2022-01-22 20:13:48

#	User	Length	Language	Date
1	Vincent Lagerros	630	Rust	2025-06-12 16:32:26
2	Kok Dith	720	Rust	2021-08-14 14:56:00
3	Freek van Keulen	873	Rust	2021-07-25 05:57:21
4	David Rasch	885	Rust	2021-03-04 16:22:09
5	Bas Dirks	885	Rust	2022-01-03 23:19:27
6	Morten Raeburn	990	Rust	2021-11-18 03:03:11
7	Adam Grady	1147	Rust	2021-09-06 20:41:29
8	Eric Pinter	1309	Rust	2022-05-23 04:37:34
9	Leonardo Gurgel	1446	Rust	2021-06-12 04:22:49
10	Lukman	1578	Rust	2021-09-11 08:37:34

Solution running time distribution