Problem A
Sierpiński Circumference — Problem Statistics

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Submissions	3431
Accepted submissions	1245
Submission ratio	36.29%
Authors	1147
Full solves [?]	1005
Full solve Ratio	87.62%

#	User	Runtime	Language	Date
1	Hepic Hepic	0.02 s	C#	2015-07-16 13:47:46
2	Андрей Титов	0.02 s	C#	2016-02-08 08:46:52
3	Robert Low	0.02 s	C#	2016-07-29 16:22:27
4	Khin Nyunt	0.02 s	C#	2017-09-21 07:17:01
5	Armin Krauss	0.02 s	C#	2018-11-20 12:10:08
6	Bryson Goad	0.02 s	C#	2019-03-12 18:20:09
7	Daniel Fennhagen	0.02 s	C#	2019-09-16 20:24:36
8	Jasmin Baniya	0.02 s	C#	2020-04-26 21:34:34
9	masosz	0.03 s	C#	2015-02-14 10:55:31
10	Mads Storm Hansen	0.03 s	C#	2015-07-17 22:22:02

#	User	Runtime	Language	Date
1	David Cawthon	0.02 s	Common Lisp	2020-07-13 03:25:05

#	User	Runtime	Language	Date
1	Khin Nyunt	0.00 s	Go	2023-09-09 16:49:10
2	Norbert Voelker	0.08 s	Go	2021-07-22 18:57:26

#	User	Runtime	Language	Date
1	Kári Tristan Helgason	0.00 s	Haskell	2014-12-10 12:20:48
2	Lars Tveito	0.00 s	Haskell	2015-10-15 18:36:36
3	Isaac Arvestad	0.00 s	Haskell	2017-02-21 16:00:03
4	Anthony Clark	0.00 s	Haskell	2017-03-24 01:39:55
5	Antony Lee	0.00 s	Haskell	2017-07-19 17:45:50
6	Brent Yorgey	0.00 s	Haskell	2017-10-30 05:32:08
7	Esther Chong	0.00 s	Haskell	2018-01-23 08:06:15
8	Chase Hinesman	0.00 s	Haskell	2018-04-23 22:27:41
9	Leslie Yip	0.00 s	Haskell	2022-10-15 17:07:53
10	Julina Savela	0.00 s	Haskell	2026-01-28 22:20:19

#	User	Runtime	Language	Date
1	Paul Boddington	0.05 s	Java	2016-05-01 01:59:57
2	Eskil Jarlskog	0.05 s	Java	2016-12-01 13:33:49
3	Octavio Anino	0.05 s	Java	2017-10-23 20:52:28
4	Jamie Kihira	0.05 s	Java	2018-02-24 01:40:16
5	Hidden user	0.05 s	Java	2018-02-27 02:45:56
6	Liam Keliher	0.05 s	Java	2018-03-15 17:49:55
7	Hidden user	0.06 s	Java	2014-12-10 19:19:54
8	Solvi Hjaltason	0.06 s	Java	2014-12-11 18:01:25
9	Hidden user	0.06 s	Java	2016-08-17 22:27:54
10	Martijn Muijsers	0.06 s	Java	2016-10-11 12:12:58

#	User	Runtime	Language	Date
1	Ram Basnet	0.06 s	JavaScript (Node.js)	2018-09-24 06:32:50
2	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-12-10 15:26:50

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2018-04-11 23:40:35
2	Peter Kedemo	0.02 s	JavaScript (SpiderMonkey)	2015-12-29 12:27:51
3	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-04-20 20:39:59

#	User	Runtime	Language	Date
1	Hidden user	0.38 s	Julia	2025-03-17 05:38:31
2	Timothy Gaede	0.51 s	Julia	2024-04-22 05:31:38

#	User	Runtime	Language	Date
1	Jonathan Soo	0.14 s	Kotlin	2019-10-21 10:28:10
2	Dayan Ruben Gonzalez	0.17 s	Kotlin	2020-09-27 23:16:09
3	Adam Rankin	0.18 s	Kotlin	2023-09-10 22:48:19

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-10-20 11:21:53

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2018-12-05 18:19:09

#	User	Runtime	Language	Date
1	Erik Odenman	0.03 s	Python 2	2015-05-10 22:20:39
2	Hans Rusten	0.03 s	Python 2	2015-10-15 18:37:55
3	Hidden user	0.03 s	Python 2	2016-03-18 14:18:06
4	Marko Lazic	0.03 s	Python 2	2016-07-10 15:05:13
5	Ethan Partidas	0.03 s	Python 2	2016-11-26 02:26:44
6	Tomas Alvarez	0.03 s	Python 2	2016-11-26 02:46:50
7	Hidden user	0.03 s	Python 2	2016-12-09 19:24:04
8	Lim Hong Hui Eugene	0.03 s	Python 2	2017-02-24 02:38:06
9	Haggai Liu	0.03 s	Python 2	2017-03-02 08:16:14
10	Josenildo Silva	0.03 s	Python 2	2017-04-12 20:58:53

#	User	Runtime	Language	Date
1	Tómas Magnússon	0.02 s	Python 3	2014-12-10 10:34:39
2	Martin Stensgård	0.02 s	Python 3	2015-03-16 00:58:10
3	Nils Gustafsson	0.02 s	Python 3	2015-04-14 18:20:41
4	James Elías Sigurðarson	0.02 s	Python 3	2015-06-11 18:32:54
5	Johannes Agestam	0.02 s	Python 3	2015-06-15 16:13:41
6	Arnar Bjarni Arnarson	0.02 s	Python 3	2016-04-08 04:31:46
7	Zirui Lin	0.02 s	Python 3	2017-01-15 17:27:40
8	Cian Ruane	0.02 s	Python 3	2017-03-21 21:26:24
9	vance	0.02 s	Python 3	2017-04-26 14:37:49
10	Ross O'Sullivan	0.02 s	Python 3	2017-04-29 20:34:48

#	User	Runtime	Language	Date
1	Mouad Naciri	0.03 s	Ruby	2017-08-14 17:08:56
2	Paarth Madan	0.04 s	Ruby	2019-09-28 02:17:37
3	Jonathan Gin	0.06 s	Ruby	2019-09-28 02:04:33
4	Thomas Feld	0.06 s	Ruby	2023-02-14 09:45:04
5	Clement Oh	0.08 s	Ruby	2024-03-31 16:46:30

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-01-19 19:40:47
2	Eric Pinter	0.00 s	Rust	2022-05-07 05:24:22
3	David Rasch	0.00 s	Rust	2023-11-24 10:29:30
4	Vincent Lagerros	0.00 s	Rust	2024-10-08 19:25:33

#	User	Length	Language	Date
1	Hidden user	184	C	2014-11-22 12:29:11
2	Lawrence Li	201	C	2016-01-21 13:12:28
3	Zachariah Goldthorpe	249	C	2017-10-01 20:40:39
4	Edouard Gruyters	254	C	2018-02-19 22:45:01
5	Hùng Đỗ Mạnh	255	C	2016-05-09 10:03:43
6	Hidden user	258	C	2017-12-08 19:52:26
7	Denis-Adrian Dobosan	271	C	2021-03-20 09:06:27
8	Juan Gutierrez	277	C	2019-10-10 08:23:26
9	Lee Geng Yu	280	C	2017-12-17 03:44:34
10	Raymond Yang	281	C	2021-07-01 17:36:21

#	User	Length	Language	Date
1	Khin Nyunt	280	C#	2017-09-21 07:17:01
2	Bryson Goad	421	C#	2019-03-12 18:20:09
3	Armin Krauss	440	C#	2018-11-20 12:10:08
4	Daniel Fennhagen	573	C#	2019-09-16 20:24:36
5	Robert Low	618	C#	2016-07-29 16:22:27
6	Jasmin Baniya	670	C#	2020-04-26 21:34:34
7	Hepic Hepic	1080	C#	2015-07-16 13:47:46
8	Mads Storm Hansen	1142	C#	2015-07-17 22:22:02
9	masosz	1350	C#	2015-02-14 11:00:02
10	Mikael Fiala-Lundström	1540	C#	2021-12-11 22:41:11

#	User	Length	Language	Date
1	Joakim Blikstad	148	C++	2015-05-30 20:01:35
2	SiBi	170	C++	2019-03-09 13:55:30
3	Zane Yu	172	C++	2018-12-10 12:24:57
4	Nguyễn Thanh Tùng	174	C++	2018-02-27 10:32:20
5	Admasu Abera	178	C++	2021-07-10 11:21:26
6	Admasu Abera	178	C++	2021-07-10 11:21:52
7	Johan Sannemo	180	C++	2015-02-07 19:17:45
8	Thanatos Cornelius	182	C++	2017-08-16 16:02:51
9	Ganapathy Sanath Balaji	182	C++	2019-08-12 09:50:02
10	Khachatur Hakobyan	183	C++	2015-11-18 17:09:33

#	User	Length	Language	Date
1	David Cawthon	316	Common Lisp	2020-07-13 03:25:05

#	User	Length	Language	Date
1	Khin Nyunt	372	Go	2023-09-09 16:49:10
2	Norbert Voelker	553	Go	2021-07-22 18:57:26

#	User	Length	Language	Date
1	Chase Hinesman	231	Haskell	2018-04-22 21:52:02
2	Anthony Clark	248	Haskell	2017-03-24 01:39:55
3	Antony Lee	251	Haskell	2017-07-19 17:51:16
4	Ryan Yates	274	Haskell	2019-10-22 05:07:24
5	Lars Tveito	307	Haskell	2015-10-15 18:36:36
6	Christian Leipe	321	Haskell	2022-01-02 10:32:09
7	Julina Savela	414	Haskell	2026-01-28 22:20:19
8	Brent Yorgey	433	Haskell	2017-10-30 05:32:08
9	Joshua Ji	433	Haskell	2020-12-03 03:25:16
10	Esther Chong	453	Haskell	2018-01-23 08:06:15

#	User	Length	Language	Date
1	Andrew Gil	297	Java	2017-10-19 04:55:42
2	Hidden user	310	Java	2015-03-11 13:06:49
3	Adam Abdalla	310	Java	2017-10-18 18:01:15
4	Hidden user	320	Java	2017-10-23 18:17:46
5	Hidden user	321	Java	2018-10-12 07:40:24
6	Ethan Fan	325	Java	2021-07-01 23:32:57
7	Anirudh Rahul	336	Java	2016-08-05 22:21:15
8	Jianing Wang	337	Java	2017-10-18 18:57:20
9	Natalia Arroyo	342	Java	2017-10-23 17:23:00
10	Simon Xue	343	Java	2015-11-15 05:27:42

#	User	Length	Language	Date
1	Ram Basnet	440	JavaScript (Node.js)	2018-09-24 06:32:50
2	Khin Nyunt	530	JavaScript (Node.js)	2021-12-10 15:26:50

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	79	JavaScript (SpiderMonkey)	2023-04-21 08:37:17
2	Peter Kedemo	452	JavaScript (SpiderMonkey)	2015-12-29 12:27:51
3	Bjørn Chr. Soltvedt	43809	JavaScript (SpiderMonkey)	2018-04-11 23:40:35

#	User	Length	Language	Date
1	Hidden user	202	Julia	2025-03-17 05:38:31
2	Timothy Gaede	423	Julia	2024-04-22 05:31:38

#	User	Length	Language	Date
1	Adam Rankin	324	Kotlin	2023-09-10 22:48:19
2	Dayan Ruben Gonzalez	327	Kotlin	2020-09-27 23:16:09
3	Jonathan Soo	3316	Kotlin	2019-10-21 10:28:10

#	User	Length	Language	Date
1	Ingemar Ragnemalm	347	Pascal	2017-10-20 11:21:53

#	User	Length	Language	Date
1	Andriy Zyevakov	299	Prolog	2018-12-05 18:19:09

#	User	Length	Language	Date
1	Thomas Feld	122	Python 2	2019-09-06 14:17:27
2	Erik Odenman	137	Python 2	2015-05-10 22:20:39
3	Hans Rusten	143	Python 2	2015-10-15 18:47:01
4	Hidden user	151	Python 2	2016-03-18 14:18:06
5	Tore Norderud	157	Python 2	2014-12-21 14:34:50
6	Daniel Voina	172	Python 2	2017-06-11 13:29:41
7	Hidden user	172	Python 2	2018-01-01 08:36:58
8	Max Holmberg	173	Python 2	2018-10-14 22:58:04
9	Hidden user	184	Python 2	2016-12-09 19:24:04
10	Eoin Davey	187	Python 2	2017-09-16 23:32:09

#	User	Length	Language	Date
1	Charles Ancheta	105	Python 3	2023-04-13 03:05:29
2	a_b__c	106	Python 3	2021-03-06 20:11:40
3	Jason Cannon	119	Python 3	2019-12-12 20:32:07
4	Alan Llewellyn	120	Python 3	2017-10-23 00:23:49
5	Nino Bašić	120	Python 3	2023-01-09 00:29:32
6	Kévin Dubrulle	123	Python 3	2025-04-01 17:45:03
7	Ahmed Chamseddine	123	Python 3	2025-06-16 23:36:51
8	Taylor Futernick	126	Python 3	2017-10-18 18:44:44
9	Eshika Sahay	128	Python 3	2017-10-21 22:49:00
10	Sebastian Dolan	130	Python 3	2017-10-18 18:32:53

#	User	Length	Language	Date
1	Thomas Feld	60	Ruby	2023-02-14 09:45:04
2	Clement Oh	117	Ruby	2024-03-31 16:46:30
3	Mouad Naciri	149	Ruby	2017-08-14 17:08:56
4	Paarth Madan	234	Ruby	2019-09-28 02:17:37
5	Jonathan Gin	304	Ruby	2019-09-28 02:04:33

#	User	Length	Language	Date
1	Vincent Lagerros	163	Rust	2024-10-08 19:26:04
2	David Rasch	310	Rust	2023-11-24 10:29:30
3	Bas Dirks	327	Rust	2022-01-19 19:40:47
4	Eric Pinter	1155	Rust	2022-05-07 05:24:22

Solution running time distribution