Problem A
Gerrymandering — Problem Statistics

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Submissions	3500
Accepted submissions	2188
Submission ratio	62.51%
Authors	2111
Accepted authors	2028
Author ratio	96.07%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.09 s	Bash	2024-04-17 18:41:03

#	User	Runtime	Language	Date
1	Henrik Hallbert	0.03 s	C#	2019-10-13 18:56:05
2	Thomas Norris	0.04 s	C#	2019-10-10 18:52:44
3	Gurpartap Singh Bhatti	0.04 s	C#	2019-10-23 05:14:26
4	Michael Palkovics	0.04 s	C#	2019-11-02 18:54:41
5	Simon Lundqvist	0.04 s	C#	2020-01-26 21:37:52
6	Per Wendt	0.04 s	C#	2020-08-24 16:33:27
7	Samuel Jefferis	0.04 s	C#	2020-09-04 16:20:41
8	Georgios Leandros Kyriazis	0.04 s	C#	2020-11-24 07:51:50
9	Sebastian Gielinger	0.05 s	C#	2019-11-27 12:15:44
10	Muhammed Edip Okur	0.05 s	C#	2019-12-20 07:48:19

#	User	Runtime	Language	Date
1	David Cawthon	0.04 s	Common Lisp	2020-07-13 02:03:29
2	wibi	0.04 s	Common Lisp	2020-08-25 18:45:17
3	Hidden user	0.05 s	Common Lisp	2020-01-19 02:28:01
4	John Dandy	0.06 s	Common Lisp	2020-02-05 02:52:17

#	User	Runtime	Language	Date
1	Oisín Mac Fhearaí	0.02 s	Crystal	2024-08-27 07:08:34

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.06 s	F#	2022-06-17 21:51:56
2	Patrick Bahr	0.07 s	F#	2021-02-20 17:37:42

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-01-23 00:51:08
2	Krzysztof Gibuła	0.08 s	Go	2021-04-26 23:42:35
3	Mohamed Ramrami	0.31 s	Go	2020-05-01 14:37:53

#	User	Runtime	Language	Date
1	Jan Hrček	0.01 s	Haskell	2020-10-20 17:05:11
2	Steinar Simonnes	0.01 s	Haskell	2024-02-16 19:08:16
3	Caleb Surovik	0.02 s	Haskell	2021-06-22 20:10:57
4	Brent Yorgey	0.03 s	Haskell	2020-08-07 05:12:46
5	Hidden user	0.06 s	Haskell	2019-10-06 12:14:03
6	Lim Ming Yean	0.07 s	Haskell	2020-04-04 17:46:33
7	Ng Tek In	0.07 s	Haskell	2022-08-13 05:00:52
8	Andrés Marzal Varó	0.08 s	Haskell	2020-10-11 11:42:25
9	Daniel Cabral	0.08 s	Haskell	2022-04-08 20:12:26
10	Hidden user	0.08 s	Haskell	2023-01-13 16:36:59

#	User	Runtime	Language	Date
1	Lee Heng Sheng	0.06 s	Java	2024-05-01 08:47:44
2	Sven Rönnbäck	0.07 s	Java	2022-12-25 21:33:50
3	Bjørn Dons	0.10 s	Java	2019-10-06 20:23:42
4	Nathaniel Lahn	0.11 s	Java	2025-02-26 03:48:03
5	Amy Colpitts	0.12 s	Java	2024-07-06 19:32:27
6	Logan Pipes	0.13 s	Java	2021-07-15 01:09:50
7	Yusuf Kharoda	0.14 s	Java	2020-07-03 18:37:13
8	Michael Wang	0.14 s	Java	2021-02-10 07:10:27
9	Sparsh Sanchorawala	0.14 s	Java	2023-01-28 21:04:22
10	Liam Keliher	0.14 s	Java	2023-07-22 16:59:23

#	User	Runtime	Language	Date
1	Hidden user	0.46 s	JavaScript (Node.js)	2019-12-19 13:40:12
2	John	0.46 s	JavaScript (Node.js)	2020-07-20 09:07:18
3	Chris Wong	0.47 s	JavaScript (Node.js)	2021-02-03 17:07:42
4	Nick Ivanov	0.49 s	JavaScript (Node.js)	2020-03-06 03:33:49
5	Andoko Chandra	0.53 s	JavaScript (Node.js)	2020-10-05 15:33:40

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (SpiderMonkey)	2019-10-06 00:41:24
2	Peter Menyes	0.04 s	JavaScript (SpiderMonkey)	2021-02-05 20:53:58
3	Evan Magill	0.04 s	JavaScript (SpiderMonkey)	2024-05-07 20:12:27
4	Jimmy Gustafsson	0.04 s	JavaScript (SpiderMonkey)	2024-06-12 23:06:55
5	Zach Tschetter	0.04 s	JavaScript (SpiderMonkey)	2025-02-01 01:52:07
6	Bjørn Chr. Soltvedt	0.05 s	JavaScript (SpiderMonkey)	2019-10-23 20:52:12
7	Christian Cederquist	0.05 s	JavaScript (SpiderMonkey)	2022-11-17 08:44:33
8	Nicklas Utgaard	0.06 s	JavaScript (SpiderMonkey)	2019-10-27 01:42:48

#	User	Runtime	Language	Date
1	Gabriel Galvez	0.42 s	Julia	2025-04-05 19:59:16
2	Timothy Gaede	0.67 s	Julia	2024-04-09 16:12:39

#	User	Runtime	Language	Date
1	Jacob Huebner	0.17 s	Kotlin	2022-02-01 21:40:46
2	Jonathan Soo	0.22 s	Kotlin	2020-02-07 05:12:40
3	Albert Pala	0.25 s	Kotlin	2021-06-30 16:46:01
4	Hidden user	0.32 s	Kotlin	2019-12-16 12:50:20
5	Adam Rankin	0.32 s	Kotlin	2023-05-09 04:02:28
6	Hamdanil Rasyid	0.39 s	Kotlin	2025-03-31 02:58:57
7	Dayan Ruben Gonzalez	0.40 s	Kotlin	2020-10-16 22:04:07
8	Troy Warmboe	0.42 s	Kotlin	2020-02-07 01:33:49
9	Hidden user	0.43 s	Kotlin	2020-03-26 00:09:06

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem	0.01 s	Lua	2023-11-14 17:08:19

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Odin	2025-05-19 22:11:57

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-10-23 22:03:47

#	User	Runtime	Language	Date
1	Helbin Grégory	0.01 s	PHP	2020-02-09 11:28:13
2	Renate	0.01 s	PHP	2021-05-23 00:47:59
3	Andre Wahyudi	0.01 s	PHP	2022-12-12 10:21:42

#	User	Runtime	Language	Date
1	Andrei Stoica	0.04 s	Python 2	2020-08-22 22:24:41
2	Sigurður Jens Albertsson	0.05 s	Python 2	2019-11-22 18:01:00
3	Hasan Kalzi	0.05 s	Python 2	2022-06-18 10:33:44
4	Lim Hong Hui Eugene	0.06 s	Python 2	2019-10-09 04:25:29
5	NickGeo	0.06 s	Python 2	2019-10-19 00:18:20
6	Lawrence Koh	0.06 s	Python 2	2020-03-16 10:28:48
7	Maj Stenmark	0.06 s	Python 2	2020-03-29 15:41:56
8	Yanmarshus Bachtiar	0.06 s	Python 2	2020-08-28 10:37:04
9	Björn Martinsson	0.07 s	Python 2	2019-10-05 21:00:58
10	Andreas Björklund	0.08 s	Python 2	2019-10-06 11:33:21

#	User	Runtime	Language	Date
1	Jason Yuen	0.03 s	Python 3	2019-10-05 20:30:49
2	Suyie Zhi	0.03 s	Python 3	2019-10-05 21:01:39
3	Quang Lam	0.03 s	Python 3	2019-10-05 21:11:31
4	Kevin Gao	0.03 s	Python 3	2019-10-05 21:21:33
5	Sam Thomas	0.03 s	Python 3	2019-10-05 21:37:11
6	Benjamin Stutzman	0.03 s	Python 3	2019-10-05 21:37:43
7	Johnson Zhou	0.03 s	Python 3	2019-10-05 21:41:55
8	Jinhui Wang	0.03 s	Python 3	2019-10-05 21:44:02
9	Lucas Liu	0.03 s	Python 3	2019-10-05 21:45:11
10	Lauren Sarah Watson	0.03 s	Python 3	2019-10-05 21:52:29

#	User	Runtime	Language	Date
1	Will Belote	0.05 s	Ruby	2019-10-07 06:42:33
2	Macdara mac an tSionnaigh	0.05 s	Ruby	2019-10-07 21:09:15
3	Hidden user	0.05 s	Ruby	2019-10-08 18:16:15
4	Hadi Qovaizi	0.07 s	Ruby	2021-06-23 10:16:04
5	Thomas Feld	0.07 s	Ruby	2022-11-09 10:44:27

#	User	Runtime	Language	Date
1	Pankajkumar Patro	0.00 s	Rust	2024-11-08 00:22:02
2	Vincent Lagerros	0.00 s	Rust	2025-02-04 16:55:53
3	Egor Kulikov	0.00 s	Rust	2025-02-05 13:56:32
4	Klas af Geijerstam	0.01 s	Rust	2019-12-20 09:23:20
5	Alex G	0.01 s	Rust	2020-02-13 13:37:55
6	Isak Jägberg	0.01 s	Rust	2020-07-29 12:13:09
7	Albert Rise Nielsen	0.01 s	Rust	2020-10-13 23:59:21
8	David Rasch	0.01 s	Rust	2020-11-26 11:45:34
9	Eric Pinter	0.01 s	Rust	2021-05-29 04:34:51
10	Freek van Keulen	0.01 s	Rust	2021-07-13 19:51:26

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-04-17 18:41:03

#	User	Length	Language	Date
1	Martin Blom	329	C	2024-01-05 11:50:39
2	Magnus Wass	662	C	2020-03-05 00:03:12
3	PhilCampbell	797	C	2020-12-26 13:19:49
4	Emil Wihlander	814	C	2020-11-28 15:04:03
5	Aileen Zhu	831	C	2019-12-17 21:26:21
6	Ximun Castoreo	853	C	2020-07-02 13:43:19
7	Hidden user	902	C	2024-01-07 16:56:07
8	Andrew Roberts	919	C	2019-12-11 19:57:36
9	Muhammed Ali Aytürk	931	C	2020-05-27 14:57:44
10	Mikael K Eriksson	939	C	2021-02-19 08:11:23

#	User	Length	Language	Date
1	traxex	829	C#	2024-05-09 17:26:06
2	Göran Andersson	1056	C#	2022-05-11 01:01:35
3	Thomas Norris	1232	C#	2019-10-10 18:52:44
4	Per Wendt	1519	C#	2020-08-24 16:33:27
5	Victor Hultén Mattsson	1849	C#	2021-07-07 22:07:14
6	Michael Palkovics	1893	C#	2019-11-02 18:54:41
7	Benjamin Bilbeau	2080	C#	2024-04-29 23:26:40
8	Samuel Jefferis	2126	C#	2020-09-04 16:20:41
9	Simon Lundqvist	2154	C#	2020-01-26 21:37:52
10	Sebastian Gielinger	2283	C#	2019-11-27 12:16:43

#	User	Length	Language	Date
1	Hidden user	505	C++	2020-01-25 17:01:18
2	Kyle Yip	529	C++	2019-10-13 00:20:37
3	Peiyao Sheng	576	C++	2019-10-05 21:55:09
4	Aleksandar Krastev	586	C++	2019-10-05 22:09:40
5	Wen Li Looi	587	C++	2019-10-05 20:38:03
6	Tan Teong Seng	590	C++	2020-09-16 14:44:01
7	Hidden user	596	C++	2020-08-19 14:19:21
8	Grae Yeandle	602	C++	2019-10-20 17:53:05
9	Yipeng Yang	603	C++	2019-10-05 21:45:01
10	Heehyun Park	607	C++	2019-10-16 01:11:29

#	User	Length	Language	Date
1	John Dandy	978	Common Lisp	2020-02-05 02:52:17
2	Hidden user	1061	Common Lisp	2020-01-19 02:28:01
3	wibi	1132	Common Lisp	2020-08-25 18:45:17
4	David Cawthon	2620	Common Lisp	2020-07-13 02:03:29

#	User	Length	Language	Date
1	Oisín Mac Fhearaí	592	Crystal	2024-08-27 07:08:34

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1354	F#	2022-06-17 21:51:56
2	Patrick Bahr	2467	F#	2021-02-20 17:37:42

#	User	Length	Language	Date
1	Mohamed Ramrami	682	Go	2020-05-01 14:37:53
2	Krzysztof Gibuła	1131	Go	2021-04-26 23:42:35
3	Norbert Voelker	1334	Go	2021-01-23 00:51:08

#	User	Length	Language	Date
1	David Zacek	924	Haskell	2021-05-11 00:21:12
2	Hidden user	1122	Haskell	2023-01-13 16:36:59
3	Johan Adamsson	1135	Haskell	2020-02-15 22:14:36
4	Caleb Surovik	1160	Haskell	2021-06-22 20:10:57
5	Daniel Cabral	1173	Haskell	2022-04-08 20:12:26
6	Rudy Matela	1243	Haskell	2024-05-27 12:46:59
7	Ng Tek In	1261	Haskell	2022-08-13 05:00:52
8	Lim Ming Yean	1307	Haskell	2020-04-04 17:46:33
9	Steinar Simonnes	1516	Haskell	2024-02-16 19:10:07
10	Andrés Marzal Varó	1598	Haskell	2020-10-11 11:42:25

#	User	Length	Language	Date
1	Shawn Hatchwell	780	Java	2019-10-09 22:35:09
2	Natalie Longtin	790	Java	2019-10-05 21:46:52
3	Carter Henderson	794	Java	2021-11-29 18:25:34
4	Jason Liu	819	Java	2023-04-29 03:20:16
5	Suyan Qu	831	Java	2019-10-05 20:59:07
6	Lior Barak	847	Java	2019-10-05 21:30:24
7	Christopher Chapman	856	Java	2019-10-05 21:33:40
8	Shang-En Huang	864	Java	2022-09-26 05:32:55
9	Mark Lang	874	Java	2019-10-05 21:13:50
10	Matt McLaughlin	891	Java	2021-03-02 22:31:35

#	User	Length	Language	Date
1	Andoko Chandra	1796	JavaScript (Node.js)	2020-10-05 15:33:40
2	Nick Ivanov	2174	JavaScript (Node.js)	2020-03-06 03:33:49
3	John	2373	JavaScript (Node.js)	2020-07-20 09:07:18
4	Chris Wong	2474	JavaScript (Node.js)	2021-02-03 17:07:42
5	Hidden user	2604	JavaScript (Node.js)	2019-12-19 13:40:12

#	User	Length	Language	Date
1	Jimmy Gustafsson	407	JavaScript (SpiderMonkey)	2024-06-12 23:06:55
2	Zach Tschetter	561	JavaScript (SpiderMonkey)	2025-02-01 01:52:07
3	Bjørn Chr. Soltvedt	663	JavaScript (SpiderMonkey)	2019-10-23 23:23:30
4	Christian Cederquist	684	JavaScript (SpiderMonkey)	2022-11-17 08:44:33
5	Evan Magill	869	JavaScript (SpiderMonkey)	2024-05-07 20:12:27
6	Peter Menyes	896	JavaScript (SpiderMonkey)	2021-02-05 20:53:58
7	Hidden user	899	JavaScript (SpiderMonkey)	2019-10-06 00:41:24
8	Nicklas Utgaard	1476	JavaScript (SpiderMonkey)	2019-10-27 01:42:48

#	User	Length	Language	Date
1	Gabriel Galvez	1314	Julia	2025-04-05 19:59:16
2	Timothy Gaede	1946	Julia	2024-04-09 16:12:39

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	786	Kotlin	2020-10-16 22:04:07
2	Hamdanil Rasyid	994	Kotlin	2025-03-31 02:58:57
3	Adam Rankin	1095	Kotlin	2023-05-09 04:02:28
4	Hidden user	1271	Kotlin	2019-12-16 12:50:20
5	Troy Warmboe	1460	Kotlin	2020-02-07 01:33:49
6	Albert Pala	1528	Kotlin	2021-06-30 16:46:01
7	Hidden user	1530	Kotlin	2020-03-26 00:09:06
8	Jacob Huebner	1914	Kotlin	2022-02-01 21:40:46
9	Jonathan Soo	3850	Kotlin	2020-02-07 05:12:40

#	User	Length	Language	Date
1	Shehab Ahmed Hatem	1005	Lua	2023-11-14 17:08:19

#	User	Length	Language	Date
1	Hidden user	1384	Odin	2025-05-19 22:11:57

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1058	Pascal	2019-10-23 22:03:47

#	User	Length	Language	Date
1	Renate	1111	PHP	2021-05-23 00:47:59
2	Andre Wahyudi	1486	PHP	2022-12-12 10:21:42
3	Helbin Grégory	2564	PHP	2020-02-09 11:28:13

#	User	Length	Language	Date
1	Thomas Feld	327	Python 2	2019-10-08 16:09:44
2	Andreas Björklund	435	Python 2	2019-10-06 11:33:21
3	Lars Åström	460	Python 2	2019-10-27 16:42:15
4	Jesper Öqvist	477	Python 2	2019-10-18 15:58:26
5	Ethan Arnold	513	Python 2	2019-10-27 20:11:00
6	Sigurður Jens Albertsson	559	Python 2	2019-11-22 18:01:00
7	Lim Hong Hui Eugene	564	Python 2	2019-10-09 04:25:29
8	Johan Lyts	574	Python 2	2019-10-26 15:06:47
9	Maj Stenmark	610	Python 2	2020-03-29 15:41:56
10	Godmar Back	627	Python 2	2019-10-06 19:57:39

#	User	Length	Language	Date
1	Adam Levav	236	Python 3	2023-01-24 03:35:08
2	Charles Ancheta	252	Python 3	2023-04-07 21:08:16
3	Ahmed Chamseddine	323	Python 3	2024-03-11 16:41:15
4	Thibault Raffaillac	360	Python 3	2023-07-30 14:22:26
5	Hidden user	365	Python 3	2023-07-23 03:07:29
6	Isaac Erdman	372	Python 3	2024-05-27 19:18:15
7	Hidden user	373	Python 3	2024-05-09 11:06:58
8	Christian Blumenthal	381	Python 3	2020-07-09 03:08:41
9	Bryon Tjanaka	388	Python 3	2019-10-27 23:17:21
10	Tai Tze Kin	391	Python 3	2024-05-02 09:13:57

#	User	Length	Language	Date
1	Thomas Feld	183	Ruby	2022-11-09 11:01:50
2	Hidden user	449	Ruby	2019-10-08 18:16:15
3	Macdara mac an tSionnaigh	533	Ruby	2019-10-07 21:09:15
4	Will Belote	821	Ruby	2019-10-07 06:42:33
5	Hadi Qovaizi	1659	Ruby	2021-06-23 10:16:04

#	User	Length	Language	Date
1	Vincent Lagerros	957	Rust	2025-02-04 16:55:53
2	Klas af Geijerstam	1090	Rust	2019-12-20 09:23:20
3	David Rasch	1274	Rust	2020-11-26 11:45:34
4	Pankajkumar Patro	1310	Rust	2024-11-08 00:22:02
5	Albert Rise Nielsen	1478	Rust	2020-10-13 23:59:21
6	Bas Dirks	1611	Rust	2022-01-14 13:30:59
7	Eric Pinter	1641	Rust	2021-05-29 04:34:51
8	Kok Dith	1665	Rust	2021-08-03 09:27:58
9	Freek van Keulen	1772	Rust	2021-07-13 19:51:26
10	Alex G	2228	Rust	2020-02-13 13:37:55

Solution running time distribution