Problem A
Peg — Problem Statistics

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Submissions	2819
Accepted submissions	1591
Submission ratio	56.44%
Authors	1593
Full solves [?]	1465
Full solve Ratio	91.96%

#	User	Runtime	Language	Date
1	Joe Amenta	0.01 s	C#	2016-04-10 00:52:24
2	masosz	0.02 s	C#	2015-01-30 20:42:36
3	Tommy Ivarsson	0.02 s	C#	2015-04-21 13:02:57
4	Charlie Forsberg Hedberg	0.02 s	C#	2015-07-07 13:23:04
5	Mads Storm Hansen	0.02 s	C#	2015-07-17 21:55:32
6	Greg Roderick	0.02 s	C#	2015-09-19 22:31:21
7	Stefan Nordling	0.02 s	C#	2015-10-31 15:35:14
8	Faisal Rahman	0.02 s	C#	2016-01-16 08:03:07
9	Jay Hal	0.02 s	C#	2016-02-09 00:34:58
10	Patrick Sjöö	0.02 s	C#	2016-06-15 06:51:35

#	User	Runtime	Language	Date
1	David Cawthon	0.02 s	Common Lisp	2019-05-11 02:18:38

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-10-10 12:08:30

#	User	Runtime	Language	Date
1	Matthias Doepmann	0.00 s	Go	2025-04-13 10:29:29
2	Christoph H	0.00 s	Go	2025-11-29 00:51:43
3	Ian Howell	0.08 s	Go	2016-05-29 04:36:44
4	Adam Smith	0.08 s	Go	2017-03-22 23:29:08
5	Norbert Voelker	0.08 s	Go	2021-04-29 16:13:12

#	User	Runtime	Language	Date
1	Erik Odenman	0.05 s	Java	2013-02-12 13:36:17
2	Alexandre Loiko	0.05 s	Java	2013-02-12 14:00:50
3	Håkan Warnquist	0.05 s	Java	2013-02-12 14:31:24
4	Carl Henrik Klåvus	0.05 s	Java	2013-02-12 15:01:18
5	Hidden user	0.05 s	Java	2015-02-22 18:10:39
6	Nathaniel Lahn	0.05 s	Java	2015-08-27 20:40:21
7	Łukasz Antkowiak	0.05 s	Java	2015-09-13 01:50:13
8	Dennis Ang	0.05 s	Java	2015-09-15 14:19:08
9	Pål Forsberg	0.05 s	Java	2015-10-03 12:43:37
10	Nick Wu	0.05 s	Java	2015-10-05 01:58:33

#	User	Runtime	Language	Date
1	Rosh Mizoory	0.04 s	JavaScript (Node.js)	2025-03-29 02:28:00
2	Samuel Högfeldt	0.09 s	JavaScript (Node.js)	2022-08-02 14:00:05
3	Chris Wong	0.41 s	JavaScript (Node.js)	2021-03-25 21:25:19
4	Antoine Bauri	0.42 s	JavaScript (Node.js)	2021-11-25 23:03:00
5	Niamh Limerick	0.42 s	JavaScript (Node.js)	2022-03-16 18:02:32
6	Andoko Chandra	0.43 s	JavaScript (Node.js)	2020-10-18 19:29:56

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-15 15:08:25
2	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-01-17 21:50:23
3	Johannes Jensen	0.01 s	JavaScript (SpiderMonkey)	2016-03-30 22:53:41
4	Ionel Hindorean	0.01 s	JavaScript (SpiderMonkey)	2016-11-25 16:22:35
5	Peter Menyes	0.01 s	JavaScript (SpiderMonkey)	2017-08-17 10:09:06
6	Nicklas Utgaard	0.01 s	JavaScript (SpiderMonkey)	2017-12-29 15:09:47
7	Robin Livesey	0.01 s	JavaScript (SpiderMonkey)	2018-04-18 16:54:55
8	Aishni Shrivastava	0.01 s	JavaScript (SpiderMonkey)	2018-05-22 20:49:08
9	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-20 13:55:29
10	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-16 22:57:04

#	User	Runtime	Language	Date
1	Timothy Gaede	0.52 s	Julia	2024-04-04 04:54:06

#	User	Runtime	Language	Date
1	Jacob Huebner	0.11 s	Kotlin	2022-02-16 04:48:49
2	Dayan Ruben Gonzalez	0.18 s	Kotlin	2020-10-04 06:05:51
3	Neil Harmon	0.19 s	Kotlin	2019-05-06 12:27:28
4	Einar Kristiansen	0.19 s	Kotlin	2022-02-24 11:32:48
5	Adam Rankin	0.19 s	Kotlin	2023-05-05 00:33:28
6	Paul McBurney	0.19 s	Kotlin	2024-02-03 18:57:55
7	Mohsen Dehbashi	0.20 s	Kotlin	2021-07-13 13:40:00
8	Troy Warmboe	0.20 s	Kotlin	2023-04-12 03:55:23
9	Einar Kjellback	0.21 s	Kotlin	2019-12-17 13:13:27
10	Emil Wihlander	0.22 s	Kotlin	2024-07-23 23:28:10

#	User	Runtime	Language	Date
1	Ludovic Mignot	0.00 s	OCaml	2020-07-26 21:21:20

#	User	Runtime	Language	Date
1	Steven D. Wilson	0.01 s	PHP	2016-03-27 06:58:20
2	Susanne Ragnemalm	0.01 s	PHP	2024-05-07 09:01:44

#	User	Runtime	Language	Date
1	Jakob Bergendahl	0.02 s	Python 2	2013-10-01 16:53:32
2	Martin Vonheim Larsen	0.02 s	Python 2	2014-12-01 19:11:12
3	Christofer Ohlsson	0.02 s	Python 2	2015-04-17 13:54:45
4	Fredrik Carlsen	0.02 s	Python 2	2015-07-10 16:10:59
5	Johannes Agestam	0.02 s	Python 2	2015-08-19 09:14:54
6	Tore Norderud	0.02 s	Python 2	2015-09-17 19:27:59
7	Snild Dolkow	0.02 s	Python 2	2015-10-03 13:02:38
8	Hans Rusten	0.02 s	Python 2	2015-10-20 16:16:16
9	Asger Hautop Drewsen	0.02 s	Python 2	2015-11-03 21:02:32
10	Erik Sillén	0.02 s	Python 2	2015-12-04 20:22:29

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2014-10-19 21:14:32
2	Martin Stensgård	0.02 s	Python 3	2015-03-14 02:31:25
3	Nils Gustafsson	0.02 s	Python 3	2015-04-13 19:58:41
4	Brian Harrington	0.02 s	Python 3	2015-04-16 22:14:00
5	James Elías Sigurðarson	0.02 s	Python 3	2015-06-11 15:24:24
6	Fredrik Carlsen	0.02 s	Python 3	2015-07-10 16:13:55
7	Lili Drčar	0.02 s	Python 3	2015-08-01 10:07:58
8	Johannes Agestam	0.02 s	Python 3	2015-08-19 09:13:46
9	Bjarki Stefánsson	0.02 s	Python 3	2015-10-12 01:55:12
10	Emil Riis Hansen	0.02 s	Python 3	2015-10-15 17:31:36

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-01-02 21:49:48
2	Lasse Berglund	0.03 s	Ruby	2016-03-29 08:40:55
3	Erik Rydbert	0.03 s	Ruby	2016-07-20 11:07:52
4	Hidden user	0.03 s	Ruby	2017-05-11 11:20:28
5	Alghi Fariansyah	0.05 s	Ruby	2020-10-31 04:16:23
6	Kok Dith	0.05 s	Ruby	2021-08-19 17:08:07
7	Thomas Feld	0.06 s	Ruby	2023-05-03 12:30:20
8	Owen Fink	0.07 s	Ruby	2025-12-23 02:42:07
9	James Church	0.07 s	Ruby	2025-12-23 07:03:08

#	User	Runtime	Language	Date
1	Buster Hultgren Wärn	0.00 s	Zig	2024-11-06 09:15:45
2	Tobias Konradsson	0.00 s	Zig	2024-11-06 15:38:26

#	User	Length	Language	Date
1	Hrant Hovhannisyan	591	C	2017-03-29 08:13:29
2	Andreas Gabrielsson	615	C	2013-02-12 13:42:13
3	Hidden user	643	C	2016-04-28 19:40:30
4	Martin Wass	682	C	2017-11-12 16:33:17
5	Sofie Kimberly	699	C	2020-09-20 15:20:12
6	Johan Öhlin	705	C	2017-08-15 11:41:32
7	PhilCampbell	733	C	2021-01-18 19:03:25
8	Anton Haglund	744	C	2016-11-19 00:41:07
9	Velvet	796	C	2020-11-18 10:26:34
10	Einar Indridason	824	C	2017-06-02 19:08:04

#	User	Length	Language	Date
1	traxex	427	C#	2024-05-10 15:15:59
2	Thomas Norris	834	C#	2019-10-17 20:14:32
3	Göran Andersson	840	C#	2022-05-16 17:32:22
4	Ólafur Andri	936	C#	2018-01-31 22:48:24
5	Eric Weiss	1027	C#	2022-09-09 16:46:54
6	Kunwei Zhang	1052	C#	2018-02-08 15:38:13
7	Doug Goodman	1098	C#	2018-03-23 22:40:13
8	Pavel Mardouski	1249	C#	2021-03-07 12:58:04
9	Charlie Forsberg Hedberg	1258	C#	2015-07-07 13:23:04
10	Robert Low	1315	C#	2016-07-14 09:33:24

#	User	Length	Language	Date
1	a_b__c	371	C++	2021-02-20 07:09:34
2	Armen Andreasyan	503	C++	2017-03-29 09:46:20
3	Goh Aik Wee	515	C++	2017-09-10 01:27:55
4	Herman Karlsson	527	C++	2015-04-21 20:27:22
5	Grae Yeandle	531	C++	2016-11-12 16:38:27
6	Lorena Hantig	532	C++	2021-02-08 08:27:16
7	黃浚瑜	532	C++	2021-07-17 03:58:00
8	William Gan	537	C++	2017-07-31 10:12:15
9	Hidden user	540	C++	2011-03-26 20:08:58
10	Rendy Ardianto	541	C++	2019-10-21 08:11:52

#	User	Length	Language	Date
1	David Cawthon	1732	Common Lisp	2019-05-11 02:18:38

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1368	F#	2022-10-10 12:08:30

#	User	Length	Language	Date
1	Christoph H	792	Go	2025-11-29 00:51:43
2	Ian Howell	870	Go	2016-05-29 04:36:44
3	Norbert Voelker	1115	Go	2021-04-29 16:13:12
4	Adam Smith	3349	Go	2017-03-22 23:29:08
5	Matthias Doepmann	4237	Go	2025-04-13 10:29:29

#	User	Length	Language	Date
1	Sebastian Banert	316	Haskell	2024-10-28 01:29:54
2	Hidden user	349	Haskell	2019-08-25 12:10:40
3	Carl Agrell	369	Haskell	2016-09-29 08:48:36
4	Brent Yorgey	473	Haskell	2017-10-08 06:50:27
5	Jan Hrček	536	Haskell	2020-11-11 07:01:49
6	Owen Shepherd	560	Haskell	2017-06-12 17:04:56
7	David Phillips	564	Haskell	2017-10-02 17:32:45
8	Håkon Flatval	570	Haskell	2018-09-03 18:18:36
9	Steinar Simonnes	656	Haskell	2024-01-31 17:09:50
10	Peter Deal	734	Haskell	2016-05-14 19:45:07

#	User	Length	Language	Date
1	Adam Abdalla	601	Java	2017-10-18 18:26:32
2	Doug Goodman	672	Java	2018-03-13 19:51:34
3	Einar Þór Ívarsson	675	Java	2020-09-18 16:55:01
4	Jaime Pacheco	708	Java	2017-10-18 16:40:14
5	Alexandros Antonorsi	710	Java	2017-10-18 18:41:48
6	Eric Leow Yu Quan	711	Java	2021-01-07 10:30:51
7	Hidden user	716	Java	2018-03-29 09:09:08
8	Crystal Sharpe	756	Java	2019-11-14 17:53:00
9	Quoc Anh Nguyen	765	Java	2017-09-26 04:30:56
10	Samuel Klingström	768	Java	2017-03-04 21:17:02

#	User	Length	Language	Date
1	Antoine Bauri	864	JavaScript (Node.js)	2021-11-25 23:03:00
2	Rosh Mizoory	979	JavaScript (Node.js)	2025-03-29 02:28:00
3	Chris Wong	1057	JavaScript (Node.js)	2021-03-25 21:25:19
4	Samuel Högfeldt	1214	JavaScript (Node.js)	2022-08-02 14:00:05
5	Niamh Limerick	1277	JavaScript (Node.js)	2022-03-16 18:02:32
6	Andoko Chandra	1723	JavaScript (Node.js)	2020-10-18 19:29:56

#	User	Length	Language	Date
1	Jimmy Gustafsson	283	JavaScript (SpiderMonkey)	2024-07-16 22:57:04
2	Christian Pilegaard Cederquist	499	JavaScript (SpiderMonkey)	2023-01-20 13:55:29
3	Peter Kedemo	504	JavaScript (SpiderMonkey)	2016-01-17 21:50:23
4	Robin Livesey	588	JavaScript (SpiderMonkey)	2018-04-18 16:54:55
5	Peter Menyes	824	JavaScript (SpiderMonkey)	2017-08-17 10:09:06
6	Johannes Jensen	890	JavaScript (SpiderMonkey)	2016-03-30 22:53:41
7	Bjørn Chr. Soltvedt	911	JavaScript (SpiderMonkey)	2016-01-15 15:08:25
8	Nicklas Utgaard	919	JavaScript (SpiderMonkey)	2017-12-29 15:09:47
9	Ionel Hindorean	1146	JavaScript (SpiderMonkey)	2016-11-25 16:22:35
10	Aishni Shrivastava	1148	JavaScript (SpiderMonkey)	2018-05-22 20:49:08

#	User	Length	Language	Date
1	Timothy Gaede	487	Julia	2024-04-04 04:54:06

#	User	Length	Language	Date
1	Emil Wihlander	560	Kotlin	2024-07-23 23:28:10
2	Adam Rankin	600	Kotlin	2023-05-05 00:33:28
3	Mohsen Dehbashi	608	Kotlin	2021-07-13 13:40:00
4	Jacob Huebner	792	Kotlin	2022-02-16 04:51:48
5	Dayan Ruben Gonzalez	975	Kotlin	2020-10-04 06:05:51
6	Troy Warmboe	1041	Kotlin	2023-04-12 03:55:23
7	Einar Kjellback	1149	Kotlin	2019-12-17 13:13:27
8	Neil Harmon	1291	Kotlin	2019-05-06 12:27:28
9	Einar Kristiansen	1305	Kotlin	2022-02-24 11:32:48
10	Paul McBurney	1655	Kotlin	2025-09-12 14:38:54

#	User	Length	Language	Date
1	Ludovic Mignot	1731	OCaml	2020-07-26 21:21:20

#	User	Length	Language	Date
1	Steven D. Wilson	572	PHP	2016-03-27 06:58:20
2	Susanne Ragnemalm	1213	PHP	2024-05-07 09:01:44

#	User	Length	Language	Date
1	Thomas Feld	162	Python 2	2019-09-02 15:14:10
2	Ben Ao	285	Python 2	2016-11-12 07:47:32
3	Scott Handelman	318	Python 2	2016-04-16 07:05:01
4	Johannes Agestam	361	Python 2	2015-10-13 22:51:31
5	Haggai Liu	364	Python 2	2018-01-14 19:09:04
6	Muzakhir Amanzholov	401	Python 2	2017-02-05 20:10:13
7	Çağdaş Öztekin	416	Python 2	2017-08-30 10:42:59
8	Jesper Öqvist	421	Python 2	2018-10-22 08:05:14
9	Maj Stenmark	422	Python 2	2019-10-19 00:02:25
10	Asger Hautop Drewsen	453	Python 2	2015-11-03 21:02:32

#	User	Length	Language	Date
1	Tai Tze Kin	86	Python 3	2024-05-02 22:44:04
2	Benjamin Z White	92	Python 3	2023-05-19 19:45:40
3	Thibault Raffaillac	149	Python 3	2023-08-14 13:29:31
4	Marcus Xu	170	Python 3	2021-12-27 09:50:16
5	Ahmed Chamseddine	203	Python 3	2024-07-30 10:48:06
6	Edvard Walde Heimdal	215	Python 3	2024-04-18 18:29:30
7	Andrew He	227	Python 3	2016-08-12 18:43:40
8	Mukerem Ali Nur	257	Python 3	2022-08-18 10:10:47
9	Jean Niklas L'orange	265	Python 3	2018-04-22 23:02:25
10	benoit belasco	276	Python 3	2023-07-29 01:17:24

#	User	Length	Language	Date
1	Thomas Feld	81	Ruby	2023-05-03 12:35:27
2	Erik Rydbert	443	Ruby	2016-07-20 11:07:52
3	Casper Christensen	496	Ruby	2016-01-02 21:49:48
4	Hidden user	587	Ruby	2017-05-11 11:20:28
5	Lasse Berglund	686	Ruby	2016-03-29 08:40:55
6	Alghi Fariansyah	730	Ruby	2020-10-31 04:16:23
7	Kok Dith	853	Ruby	2021-08-19 17:08:07
8	James Church	958	Ruby	2025-12-23 07:03:08
9	Owen Fink	1007	Ruby	2025-12-23 02:42:07

#	User	Length	Language	Date
1	David Rasch	704	Rust	2024-01-09 12:36:32
2	Vincent Lagerros	926	Rust	2025-08-26 16:37:49
3	Bas Dirks	1202	Rust	2022-02-18 12:43:28
4	Hidden user	1251	Rust	2019-12-01 17:35:45
5	Freek van Keulen	1275	Rust	2021-07-29 15:46:45
6	Lien Cai Ting	1456	Rust	2022-10-31 06:42:13
7	Eric Pinter	1835	Rust	2021-10-16 02:21:22
8	Added Kina	1995	Rust	2023-05-07 17:46:51
9	Kalle Vigren	2117	Rust	2024-11-20 20:11:10
10	Thomas Simmons	2235	Rust	2020-11-01 09:41:55

#	User	Length	Language	Date
1	Tobias Konradsson	3623	Zig	2024-11-06 15:38:26
2	Buster Hultgren Wärn	3760	Zig	2024-11-06 09:15:45

Solution running time distribution