Problem A
Coast Length — Problem Statistics

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Submissions	10968
Accepted submissions	3977
Submission ratio	36.26%
Authors	2999
Accepted authors	2564
Author ratio	85.50%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.16 s	Bash	2024-04-17 18:40:01

#	User	Runtime	Language	Date
1	Axel Delbom	0.01 s	C	2019-03-27 14:34:52
2	Olof Heurgren	0.02 s	C	2016-12-10 19:32:56
3	Jón Steinn Elíasson	0.02 s	C	2017-06-21 18:07:51
4	Pranay Kiran	0.02 s	C	2022-04-28 20:42:02
5	Mohd Farhat	0.02 s	C	2023-04-28 14:16:41
6	Nick	0.02 s	C	2023-10-17 18:41:22
7	soroush eskandary	0.02 s	C	2024-07-14 02:54:33
8	Kiet Pham Tuan	0.02 s	C	2024-12-09 03:12:50
9	Đặng Xuân Thành	0.03 s	C	2016-05-03 18:30:01
10	Olav Røthe Bakken	0.03 s	C	2017-01-26 20:13:16

#	User	Runtime	Language	Date
1	Brian Kirby	0.06 s	C#	2017-05-13 06:56:19
2	masosz	0.07 s	C#	2015-03-31 19:32:45
3	Bartosz Starczewski	0.07 s	C#	2018-07-29 16:25:41
4	Nick Russell	0.08 s	C#	2018-06-07 22:37:22
5	Siavash Ghodsi Moghaddam	0.10 s	C#	2015-12-15 23:20:48
6	Hidden user	0.10 s	C#	2017-03-22 10:34:38
7	Lukas Polacek	0.11 s	C#	2013-02-27 10:57:09
8	Pontus Bergkvist	0.11 s	C#	2016-07-02 15:34:48
9	Leslie Yip	0.11 s	C#	2022-10-09 13:07:38
10	Kyriakos Malamas	0.12 s	C#	2017-04-26 22:20:06

#	User	Runtime	Language	Date
1	Emil Lenngren	0.02 s	C++	2011-10-01 18:44:50
2	Johan Sannemo	0.02 s	C++	2011-10-09 09:54:17
3	Peter Ondrúška	0.02 s	C++	2011-10-16 13:53:00
4	Martin Runelöv	0.02 s	C++	2014-02-19 23:42:59
5	Jonah Schreiber	0.02 s	C++	2014-02-25 00:00:12
6	Christopher Mårtensson	0.02 s	C++	2014-02-25 16:08:07
7	Yang Shi	0.02 s	C++	2014-09-29 15:06:37
8	Hidden user	0.02 s	C++	2015-05-18 13:55:02
9	Hidden user	0.02 s	C++	2015-11-14 03:36:33
10	Aydan JR	0.02 s	C++	2016-01-28 15:11:55

#	User	Runtime	Language	Date
1	Jonas Mittnacht	0.09 s	Go	2024-02-14 15:27:11
2	Paul Boddington	0.16 s	Go	2016-05-18 01:18:07
3	Norbert Voelker	0.25 s	Go	2022-05-01 22:10:39
4	Việt Hà Nguyễn	0.27 s	Go	2016-08-07 10:54:20
5	Krzysztof Gibuła	0.32 s	Go	2021-03-22 22:15:58
6	bonjour	1.31 s	Go	2018-01-17 17:33:04

#	User	Runtime	Language	Date
1	Wilfried van Asten	0.39 s	Haskell	2015-12-13 01:12:04
2	Morten Lohne	0.51 s	Haskell	2017-01-19 15:53:50

#	User	Runtime	Language	Date
1	Fredrik Atmer	0.12 s	Java	2012-11-25 23:22:48
2	Asmus Tørsleff	0.12 s	Java	2022-03-01 14:35:54
3	Simon Klein	0.13 s	Java	2011-10-17 09:26:04
4	Sven Rönnbäck	0.14 s	Java	2022-12-03 18:00:40
5	Ismaila Abdoulahi	0.15 s	Java	2018-10-25 13:55:41
6	José Vander Meulen	0.16 s	Java	2018-10-16 15:13:10
7	Rocha Azevedo Dani	0.16 s	Java	2018-10-25 14:00:49
8	Guangyi Zhou	0.16 s	Java	2025-02-20 04:57:10
9	Josenildo Silva	0.18 s	Java	2017-05-06 19:36:49
10	Đỗ Duy Tân	0.19 s	Java	2015-09-11 09:50:48

#	User	Runtime	Language	Date
1	Rachel Lader	0.21 s	JavaScript (Node.js)	2018-06-09 07:02:52
2	Emil Clemedson	0.88 s	JavaScript (Node.js)	2021-08-19 18:39:04

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.15 s	JavaScript (SpiderMonkey)	2018-12-03 02:28:56
2	Ola Næss Kaldestad	0.19 s	JavaScript (SpiderMonkey)	2017-01-29 21:39:55
3	Christian Cederquist	0.26 s	JavaScript (SpiderMonkey)	2023-04-01 03:49:40
4	Miguel Ehrstrand	0.58 s	JavaScript (SpiderMonkey)	2016-09-10 20:37:21
5	Peter Kedemo	1.18 s	JavaScript (SpiderMonkey)	2016-06-12 16:09:22

#	User	Runtime	Language	Date
1	Noszály Csaba	0.83 s	Julia	2025-03-11 06:55:22
2	Timothy Gaede	1.31 s	Julia	2025-04-02 08:46:29

#	User	Runtime	Language	Date
1	Jacob Huebner	0.27 s	Kotlin	2022-04-12 18:38:34
2	Benjamin Ye	0.41 s	Kotlin	2023-01-11 22:36:22
3	Chris Johnson	0.58 s	Kotlin	2025-03-05 22:47:16
4	Björn Holm	0.69 s	Kotlin	2019-04-29 23:00:15
5	Leonard Alexander Blechschmidt	0.73 s	Kotlin	2022-01-10 15:48:19
6	Adam Rankin	1.20 s	Kotlin	2023-09-21 19:17:57

#	User	Runtime	Language	Date
1	Luke Vandevoorde	0.22 s	OCaml	2023-01-13 07:20:01

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.03 s	Pascal	2017-08-12 13:34:00

#	User	Runtime	Language	Date
1	Adrian Borup	2.98 s	Perl	2024-10-27 13:33:45

#	User	Runtime	Language	Date
1	Hidden user	0.39 s	PHP	2015-06-19 18:50:19
2	Anders Larsson	0.46 s	PHP	2016-06-08 19:39:49
3	Anders Sjöqvist	0.59 s	PHP	2015-06-17 16:46:53
4	Hidden user	0.59 s	PHP	2015-06-17 21:20:23
5	Henric Johansson	0.70 s	PHP	2021-04-21 09:24:01
6	Marjan Mickoski	0.94 s	PHP	2015-06-17 16:10:54
7	Ilija Matoski	1.11 s	PHP	2015-06-17 14:26:57

#	User	Runtime	Language	Date
1	Fredrika Agestam	0.18 s	Python 2	2015-05-18 20:40:18
2	Lars Åström	0.18 s	Python 2	2018-03-28 01:13:19
3	Tore Norderud	0.19 s	Python 2	2015-10-08 22:54:51
4	Alvaro Silvino	0.19 s	Python 2	2016-04-20 15:40:58
5	Victor Zheng	0.20 s	Python 2	2017-06-18 02:36:27
6	Gustav Sennton	0.21 s	Python 2	2012-03-20 18:05:33
7	Hidden user	0.22 s	Python 2	2011-10-02 18:37:01
8	Lars Tveito	0.22 s	Python 2	2015-10-08 21:20:32
9	Mikael Hedin	0.23 s	Python 2	2015-10-26 14:53:59
10	Andreas Serra	0.24 s	Python 2	2014-02-20 10:14:23

#	User	Runtime	Language	Date
1	Christoph Dürr	0.18 s	Python 3	2024-11-16 09:39:48
2	Steven Widjaja	0.18 s	Python 3	2025-03-31 22:38:43
3	crapcode	0.19 s	Python 3	2022-05-04 00:07:20
4	LETIAN	0.19 s	Python 3	2025-01-20 05:53:39
5	Grant McCord	0.20 s	Python 3	2022-11-04 01:57:37
6	Yihan Shen	0.21 s	Python 3	2024-01-17 02:42:28
7	William Kettleborough	0.21 s	Python 3	2024-03-23 11:19:12
8	Brandon Nathaniel Yaury	0.22 s	Python 3	2021-04-20 09:41:23
9	iF	0.22 s	Python 3	2022-05-23 13:27:50
10	Justin Chan	0.22 s	Python 3	2022-11-21 04:45:54

#	User	Runtime	Language	Date
1	Alexander Bilde Pedersen	1.03 s	Ruby	2023-03-11 13:05:48
2	Casper Christensen	1.08 s	Ruby	2016-03-14 16:08:57
3	Ivy Wang	1.20 s	Ruby	2023-01-11 00:52:46
4	Hidden user	1.39 s	Ruby	2019-02-16 23:41:39

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2024-05-16 17:42:50
2	David Rasch	0.03 s	Rust	2021-03-12 17:06:07
3	Jianghua Wang	0.04 s	Rust	2023-01-10 07:03:03
4	藤原潮人	0.04 s	Rust	2023-07-13 22:42:22
5	Egor Kulikov	0.04 s	Rust	2024-12-20 12:16:05
6	Bas Dirks	0.05 s	Rust	2022-02-22 16:25:05
7	Ryosuke Takahashi	0.06 s	Rust	2023-07-11 22:24:40
8	Iwancof	0.09 s	Rust	2023-05-23 07:59:00
9	Ryan Chau	0.31 s	Rust	2023-01-19 20:16:48
10	Kian Kasad	0.44 s	Rust	2025-03-28 23:17:03

#	User	Runtime	Language	Date
1	Danial Haseeb	0.42 s	Swift	2023-12-06 04:42:54

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-04-17 18:40:01

#	User	Length	Language	Date
1	Hidden user	911	C	2020-08-16 06:18:41
2	Phan Ngoc Lan	957	C	2016-07-31 08:00:57
3	Jonas Mittnacht	964	C	2024-02-03 16:31:45
4	Hidden user	1003	C	2014-10-21 21:20:40
5	Damjan Polugic	1014	C	2020-01-20 13:20:47
6	Dominic Viola	1030	C	2024-02-14 14:49:10
7	Hidden user	1042	C	2025-01-09 22:30:18
8	Mouad Naciri	1066	C	2017-03-25 12:22:44
9	Olav Røthe Bakken	1086	C	2017-01-26 20:13:16
10	pengin	1108	C	2021-08-17 13:14:37

#	User	Length	Language	Date
1	Havkost	1369	C#	2024-11-18 21:34:15
2	Lukas Polacek	1401	C#	2013-02-27 10:57:09
3	Rafael Steffen Nguyen Jensen	1883	C#	2025-03-12 20:48:29
4	Leslie Yip	1893	C#	2022-10-09 13:07:38
5	Bartosz Starczewski	2458	C#	2018-07-29 16:25:41
6	Pontus Bergkvist	2543	C#	2016-07-02 15:34:48
7	Brian Kirby	2692	C#	2017-05-13 06:56:19
8	Louie Waterfall	2779	C#	2022-04-27 16:37:58
9	Omid Naghizadeh	3019	C#	2015-07-17 07:03:57
10	Krasimir Balchev	3045	C#	2020-06-17 15:42:08

#	User	Length	Language	Date
1	Naufal Aziz	526	C++	2017-01-17 08:24:23
2	Ichsan Noor Salim	526	C++	2017-01-17 10:54:26
3	Erallesa Putra Sandeni	528	C++	2017-01-17 09:57:40
4	Yeung Man Tsung	561	C++	2022-11-25 08:58:00
5	Johan Wind	577	C++	2015-09-18 17:45:36
6	Adhish Kancharla	599	C++	2020-10-04 12:21:39
7	Jacob Denson	612	C++	2016-10-15 19:37:03
8	Nguyễn Mạnh	616	C++	2019-09-30 10:05:52
9	Victor Zheng	620	C++	2017-06-17 23:21:48
10	Gabriel Pereira de Carvalho	624	C++	2019-05-18 16:57:04

#	User	Length	Language	Date
1	Krzysztof Gibuła	911	Go	2021-03-22 22:15:58
2	Jonas Mittnacht	1294	Go	2024-02-03 17:28:33
3	Paul Boddington	1695	Go	2016-05-18 01:18:07
4	Norbert Voelker	1749	Go	2022-05-01 21:56:14
5	bonjour	1919	Go	2018-01-17 17:33:04
6	Việt Hà Nguyễn	2185	Go	2016-08-07 10:54:20

#	User	Length	Language	Date
1	Morten Lohne	3789	Haskell	2017-01-19 15:53:50
2	Wilfried van Asten	15058	Haskell	2015-12-13 01:12:04

#	User	Length	Language	Date
1	Doug Goodman	869	Java	2016-07-08 16:33:33
2	Marc Dominic San Pedro	975	Java	2023-03-29 17:41:01
3	Hidden user	999	Java	2016-10-07 23:58:46
4	Markus Bao	1013	Java	2023-01-28 17:33:33
5	Stephen Royal	1030	Java	2015-08-26 19:17:21
6	Malte Larsson	1068	Java	2018-03-26 19:02:44
7	Gabriela Llave	1084	Java	2015-09-01 19:22:11
8	Nhan Le	1090	Java	2018-11-07 23:57:26
9	Xuehui Chen	1147	Java	2018-07-13 03:02:50
10	Joshua Workman	1164	Java	2020-10-15 00:02:58

#	User	Length	Language	Date
1	Rachel Lader	1761	JavaScript (Node.js)	2018-06-09 07:02:52
2	Emil Clemedson	2329	JavaScript (Node.js)	2021-08-19 18:39:04

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	1164	JavaScript (SpiderMonkey)	2018-12-03 02:28:56
2	Christian Cederquist	1281	JavaScript (SpiderMonkey)	2023-04-01 03:49:40
3	Peter Kedemo	1533	JavaScript (SpiderMonkey)	2016-06-12 16:09:22
4	Ola Næss Kaldestad	1562	JavaScript (SpiderMonkey)	2017-01-29 21:39:55
5	Miguel Ehrstrand	7594	JavaScript (SpiderMonkey)	2016-09-10 20:37:21

#	User	Length	Language	Date
1	Noszály Csaba	322	Julia	2025-03-11 07:24:38
2	Timothy Gaede	2036	Julia	2025-04-02 08:46:29

#	User	Length	Language	Date
1	Benjamin Ye	953	Kotlin	2023-01-11 22:36:22
2	Jacob Huebner	1295	Kotlin	2020-12-05 21:37:03
3	Leonard Alexander Blechschmidt	1770	Kotlin	2022-01-10 15:48:19
4	Chris Johnson	2018	Kotlin	2025-03-05 22:47:16
5	Adam Rankin	2287	Kotlin	2023-09-21 19:17:57
6	Björn Holm	3297	Kotlin	2019-04-29 23:00:15

#	User	Length	Language	Date
1	Luke Vandevoorde	1426	OCaml	2023-01-13 07:20:01

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1563	Pascal	2017-08-12 13:34:00

#	User	Length	Language	Date
1	Adrian Borup	2620	Perl	2024-10-27 13:33:45

#	User	Length	Language	Date
1	Hidden user	804	PHP	2015-06-19 18:50:19
2	Anders Sjöqvist	947	PHP	2015-06-17 16:46:53
3	Hidden user	988	PHP	2015-06-17 21:20:23
4	Henric Johansson	1336	PHP	2021-04-21 09:24:01
5	Marjan Mickoski	1716	PHP	2015-06-17 16:16:43
6	Ilija Matoski	2221	PHP	2015-06-22 19:08:37
7	Anders Larsson	2485	PHP	2016-06-08 19:39:49

#	User	Length	Language	Date
1	Thomas Feld	451	Python 2	2019-08-22 16:06:34
2	Victor Zheng	529	Python 2	2017-06-18 02:36:27
3	John Paul Hanson	564	Python 2	2017-09-21 21:50:12
4	Andreas Björklund	586	Python 2	2019-03-23 13:59:24
5	Lars Tveito	624	Python 2	2015-10-08 21:20:32
6	Hidden user	644	Python 2	2011-10-02 18:37:01
7	Asger Hautop Drewsen	678	Python 2	2018-12-04 01:34:22
8	Paul Devlin	682	Python 2	2019-02-21 19:57:08
9	udprogrammingteam Team	696	Python 2	2017-09-20 03:30:58
10	Thomas Vu	712	Python 2	2018-10-27 18:17:29

#	User	Length	Language	Date
1	Kai Hoop	257	Python 3	2024-02-29 01:33:23
2	Gustav Elmqvist	280	Python 3	2023-02-13 02:09:27
3	Kevin Wu	296	Python 3	2022-11-04 06:52:49
4	Brian Zhu	308	Python 3	2022-11-04 05:43:29
5	Michael Goldwasser	331	Python 3	2024-10-15 01:38:49
6	Noah Weninger	467	Python 3	2018-10-27 19:14:20
7	Anshuman Dash	492	Python 3	2023-01-10 01:51:38
8	Thomas Vu	496	Python 3	2019-03-22 23:44:20
9	Thibault Raffaillac	526	Python 3	2021-03-01 15:34:16
10	Allester Ramayrat	548	Python 3	2023-01-19 18:13:07

#	User	Length	Language	Date
1	Alexander Bilde Pedersen	275	Ruby	2023-03-11 13:05:48
2	Ivy Wang	810	Ruby	2023-01-11 07:46:19
3	Casper Christensen	870	Ruby	2016-01-28 18:35:27
4	Hidden user	1171	Ruby	2019-02-16 23:41:39

#	User	Length	Language	Date
1	Jianghua Wang	1483	Rust	2023-01-10 07:03:03
2	Vincent Lagerros	1658	Rust	2024-05-16 17:42:50
3	Bas Dirks	1701	Rust	2022-02-22 16:25:05
4	David Rasch	2003	Rust	2021-03-12 17:06:07
5	藤原潮人	2359	Rust	2023-07-13 22:42:22
6	Ryan Chau	3016	Rust	2023-01-19 20:16:48
7	Kian Kasad	3057	Rust	2025-03-28 23:17:03
8	Lasse Wendtland Edslev	4428	Rust	2024-09-24 19:31:19
9	Ryosuke Takahashi	6409	Rust	2023-07-11 22:24:40
10	Egor Kulikov	28298	Rust	2024-12-20 12:16:05

#	User	Length	Language	Date
1	Danial Haseeb	1954	Swift	2023-12-06 04:42:54

Solution running time distribution