Problem A
Mars Window — Problem Statistics

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Submissions	5332
Accepted submissions	2062
Submission ratio	38.67%
Authors	1866
Accepted authors	1714
Author ratio	91.85%

#	User	Runtime	Language	Date
1	Frans Meulenbroeks	0.01 s	Bash	2024-09-12 11:43:06
2	Chenzhang Hu	0.06 s	Bash	2023-09-08 14:37:43
3	Thomas Feld	0.06 s	Bash	2023-09-27 09:14:19

#	User	Runtime	Language	Date
1	Hans Glimmerfors	0.01 s	C#	2018-04-08 11:04:09
2	Faisal Rahman	0.02 s	C#	2018-04-30 10:44:55
3	Shiyi Du	0.02 s	C#	2018-09-21 03:04:40
4	Sjoerd Teunisse	0.02 s	C#	2018-10-06 21:12:48
5	Kelvin Snepvangers	0.02 s	C#	2018-10-06 21:12:57
6	Patrik Rydén	0.02 s	C#	2018-11-25 18:51:25
7	Tom Ilestrand	0.02 s	C#	2019-02-27 17:56:26
8	Nicholas Sippley	0.02 s	C#	2019-05-22 00:45:01
9	Thu Tran	0.02 s	C#	2019-06-06 20:28:36
10	Kiran Chandra	0.02 s	C#	2019-08-24 22:21:32

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Common Lisp	2019-06-11 10:15:55

#	User	Runtime	Language	Date
1	Evgeniy Sharapov	0.03 s	F#	2021-08-04 23:25:52
2	Jacob Harris Cryer Kragh	0.03 s	F#	2022-11-21 17:19:22
3	Rasmus Lystrøm	0.04 s	F#	2022-02-21 08:21:57

#	User	Runtime	Language	Date
1	Ola Dahl	0.02 s	Go	2022-11-06 16:31:37
2	Krzysztof Gibuła	0.07 s	Go	2019-03-04 23:20:49
3	dick move	0.07 s	Go	2021-05-29 20:22:48
4	Sergey Jakobsen	0.07 s	Go	2022-02-01 17:54:18
5	Ian Howell	0.08 s	Go	2019-08-27 22:54:19
6	Norbert Voelker	0.08 s	Go	2021-05-06 20:28:00

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2018-04-08 22:49:26
2	Li Jun	0.00 s	Haskell	2023-06-29 12:19:38
3	Aiden Lara	0.00 s	Haskell	2024-05-04 03:35:53
4	Lim Ming Yean	0.01 s	Haskell	2019-03-29 08:41:32
5	Jim O'Brien	0.01 s	Haskell	2019-05-10 07:46:09
6	Hidden user	0.01 s	Haskell	2019-05-10 18:31:07
7	Hidden user	0.01 s	Haskell	2019-08-28 18:11:10
8	Intrets	0.01 s	Haskell	2019-09-02 13:22:41
9	Aurélien Pepin	0.01 s	Haskell	2019-09-21 09:15:31
10	Jan Hrček	0.01 s	Haskell	2021-03-14 08:45:15

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2025-02-02 16:12:18
2	Tobias Glimmerfors	0.05 s	Java	2018-04-08 10:11:08
3	Herman Appelgren	0.05 s	Java	2018-04-08 10:27:14
4	Lizhong Wang	0.05 s	Java	2018-04-12 19:52:48
5	Steven Cheng	0.05 s	Java	2018-05-21 19:30:55
6	Ashu Yadav	0.05 s	Java	2018-06-18 14:17:10
7	Cameron Bedard	0.05 s	Java	2018-09-21 02:33:43
8	HighOnJuice	0.05 s	Java	2024-09-30 03:04:11
9	Max Holmberg	0.06 s	Java	2018-05-07 21:44:31
10	Igor Trúchlik	0.06 s	Java	2020-06-15 09:40:40

#	User	Runtime	Language	Date
1	Marko Lazic	0.05 s	JavaScript (Node.js)	2018-06-16 08:55:17
2	Ram Basnet	0.05 s	JavaScript (Node.js)	2018-09-20 05:58:01
3	Sander Hellesø	0.05 s	JavaScript (Node.js)	2019-05-04 07:19:35
4	TEJA KUSUMA	0.05 s	JavaScript (Node.js)	2024-03-10 11:11:52
5	Ankit Agrawal	0.08 s	JavaScript (Node.js)	2022-09-29 22:00:57
6	Thomas Wingsternes	0.09 s	JavaScript (Node.js)	2022-11-09 12:22:56
7	Peter Kedemo	0.42 s	JavaScript (Node.js)	2020-01-06 10:05:50
8	Stephanie Keck	0.42 s	JavaScript (Node.js)	2020-01-17 23:21:45
9	Jeana Althea Altura	0.42 s	JavaScript (Node.js)	2020-02-20 04:59:45
10	Andrew Paige Schmidt	0.42 s	JavaScript (Node.js)	2020-02-22 03:53:33

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2018-04-08 18:25:03
2	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-10-16 17:44:33
3	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-31 23:12:12
4	Benjamin Eli van Rhee	0.02 s	JavaScript (SpiderMonkey)	2024-10-01 06:31:14
5	Casey Smith	0.03 s	JavaScript (SpiderMonkey)	2019-05-30 19:59:32

#	User	Runtime	Language	Date
1	Timothy Gaede	0.29 s	Julia	2025-04-23 18:30:09

#	User	Runtime	Language	Date
1	Johnny Baloney	0.11 s	Kotlin	2021-12-05 19:50:02
2	Hidden user	0.14 s	Kotlin	2019-12-20 17:33:31
3	Ola Sundell	0.15 s	Kotlin	2018-06-13 14:22:17
4	James WIlliams	0.17 s	Kotlin	2020-09-27 01:44:48
5	Neil Harmon	0.18 s	Kotlin	2019-06-07 16:18:48
6	Chris Johnson	0.18 s	Kotlin	2023-04-14 15:32:13
7	Chris Ward	0.19 s	Kotlin	2019-09-19 12:23:06
8	Adam Rankin	0.19 s	Kotlin	2023-04-26 00:39:10
9	Ravisai Tiruvuri	0.19 s	Kotlin	2024-03-26 06:29:50
10	Marit van Dijk	0.20 s	Kotlin	2019-01-27 11:02:13

#	User	Runtime	Language	Date
1	Zeheng Li	0.00 s	Lua	2023-12-13 00:39:59

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-05-04 09:51:57
2	Quang Nhat	0.00 s	Pascal	2019-07-03 09:39:26
3	Bùi Quốc Trung	0.00 s	Pascal	2019-07-03 11:02:17
4	Dũ Quốc Huy	0.00 s	Pascal	2019-07-03 11:15:18
5	Kiên Nguyễn Tiến Trung	0.00 s	Pascal	2019-07-03 16:58:46

#	User	Runtime	Language	Date
1	Markus Weller	0.01 s	PHP	2019-02-21 14:48:28
2	Thomas Feld	0.01 s	PHP	2023-01-31 13:16:12
3	Connor Billings	0.03 s	PHP	2020-07-11 16:19:50

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2018-12-04 17:17:31

#	User	Runtime	Language	Date
1	Lars Åström	0.02 s	Python 2	2018-04-08 10:15:31
2	Maj Stenmark	0.02 s	Python 2	2018-04-08 10:16:44
3	Hidden user	0.02 s	Python 2	2018-04-08 11:16:24
4	Måns Magnusson	0.03 s	Python 2	2018-04-08 10:08:00
5	Linus Karlsson	0.03 s	Python 2	2018-04-08 10:13:02
6	Dennis Magnusson	0.03 s	Python 2	2018-04-08 11:11:43
7	Hidden user	0.03 s	Python 2	2018-04-08 13:23:43
8	Nick Wu	0.03 s	Python 2	2018-08-04 03:32:49
9	Johann Ly	0.03 s	Python 2	2018-09-03 02:47:23
10	Justin Su	0.03 s	Python 2	2018-09-21 01:33:43

#	User	Runtime	Language	Date
1	Björn Magnusson	0.02 s	Python 3	2018-04-08 10:10:06
2	Christofer Ohlsson	0.02 s	Python 3	2018-04-08 10:14:34
3	Marcus Dicander	0.02 s	Python 3	2018-04-08 10:21:56
4	Robert Welin-Berger	0.02 s	Python 3	2018-04-08 10:22:33
5	Axel Bergström	0.02 s	Python 3	2018-04-08 11:25:51
6	Hakan Celik	0.02 s	Python 3	2018-04-08 12:23:14
7	Erik Mårtensson	0.02 s	Python 3	2018-04-08 15:09:12
8	Ciara Godwin	0.02 s	Python 3	2018-04-08 15:10:05
9	Hannes Kristján Hannesson	0.02 s	Python 3	2018-04-08 22:56:44
10	Gamithra Marga	0.02 s	Python 3	2018-04-11 18:40:07

#	User	Runtime	Language	Date
1	Miorel Palii	0.03 s	Ruby	2018-04-09 02:23:08
2	Oleg Smelov	0.04 s	Ruby	2019-02-23 19:15:06
3	Macdara mac an tSionnaigh	0.04 s	Ruby	2019-11-22 23:39:09
4	Kok Dith	0.05 s	Ruby	2021-08-25 12:09:40
5	Thomas Feld	0.06 s	Ruby	2022-12-07 13:04:31
6	Gustav Elmqvist	0.06 s	Ruby	2023-03-21 23:06:37

#	User	Runtime	Language	Date
1	Serguei Antonovich Kirillov	0.00 s	Rust	2019-11-27 00:59:25
2	David Rasch	0.00 s	Rust	2020-10-05 16:49:40
3	David Zacek	0.00 s	Rust	2021-07-12 22:08:31
4	Eric Pinter	0.00 s	Rust	2021-07-14 16:52:21
5	Bas Dirks	0.00 s	Rust	2022-01-08 10:28:24
6	Giang Đào	0.00 s	Rust	2023-01-05 15:28:04
7	Isak Jägberg	0.00 s	Rust	2023-03-22 14:24:17
8	Daniel Anker Hermansen	0.00 s	Rust	2024-08-22 14:32:20
9	Vincent Lagerros	0.00 s	Rust	2025-01-26 21:50:44

#	User	Runtime	Language	Date
1	Tuomas Maanonen	0.04 s	TypeScript	2024-11-13 09:17:20

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-02-03 13:05:21
2	Thomas Feld	13	Bash	2023-09-27 09:14:19
3	Frans Meulenbroeks	69	Bash	2024-09-12 12:08:55

#	User	Length	Language	Date
1	Guangyi Zhou	94	C	2025-02-02 17:15:59
2	Hao Wang	159	C	2019-09-23 03:09:34
3	Roberto Kreshna	160	C	2020-12-05 17:02:16
4	Jack Gurdin	170	C	2022-09-29 18:48:59
5	PhilCampbell	177	C	2021-02-07 14:07:30
6	April Clark	203	C	2023-07-20 02:48:57
7	William Ball	207	C	2019-09-25 18:30:02
8	Shibbir Ahmed	218	C	2019-05-03 00:51:42
9	Martin Wass	252	C	2018-04-08 10:17:00
10	Ling Wen Jian	256	C	2019-01-13 15:12:14

#	User	Length	Language	Date
1	Sebastian Sternberg	330	C#	2021-02-28 20:40:52
2	Göran Andersson	361	C#	2022-05-24 23:57:45
3	Thomas Norris	462	C#	2019-11-01 17:19:51
4	Carl Sandberg	466	C#	2024-02-15 14:16:03
5	Sheldon Small	478	C#	2023-10-06 11:11:15
6	Nicholas Sippley	492	C#	2019-05-22 00:45:01
7	Mikael Fiala-Lundström	554	C#	2021-05-09 23:49:36
8	Hans Glimmerfors	661	C#	2018-04-08 11:04:09
9	Fredrik Jacobsson	703	C#	2024-08-26 23:27:55
10	Sjoerd Teunisse	731	C#	2018-10-06 21:12:48

#	User	Length	Language	Date
1	Neev Kataria	96	C++	2023-10-15 05:58:53
2	Tyler Fernando	110	C++	2022-11-02 06:41:47
3	Khoi Le	144	C++	2019-10-08 00:16:12
4	Hidden user	144	C++	2020-01-12 00:46:46
5	Frederick Pek	155	C++	2021-06-14 15:51:05
6	Khawla Hbiech	160	C++	2018-08-08 09:12:24
7	椿椿很黑小眼睛咖啡豆麵包葉子高B流請假王左安多莉電風扇ㄅㄅ筍E E 各英文王	160	C++	2020-03-03 08:59:19
8	Anna Roczek	160	C++	2023-07-13 14:22:23
9	Orville Davis	161	C++	2018-10-11 04:48:12
10	Rafif Musyaffa Indarto	163	C++	2025-02-28 09:09:14

#	User	Length	Language	Date
1	Hidden user	171	Common Lisp	2019-06-11 10:15:55

#	User	Length	Language	Date
1	Evgeniy Sharapov	381	F#	2021-08-04 23:25:52
2	Jacob Harris Cryer Kragh	456	F#	2022-11-21 17:19:22
3	Rasmus Lystrøm	562	F#	2022-02-21 08:21:57

#	User	Length	Language	Date
1	dick move	199	Go	2021-05-29 20:22:48
2	Ola Dahl	309	Go	2022-11-06 16:28:33
3	Sergey Jakobsen	373	Go	2022-02-01 17:50:41
4	Krzysztof Gibuła	426	Go	2019-03-04 23:20:49
5	Norbert Voelker	885	Go	2021-05-06 20:29:59
6	Ian Howell	37508	Go	2019-08-27 22:54:19

#	User	Length	Language	Date
1	Hidden user	210	Haskell	2019-05-10 18:31:53
2	Li Jun	219	Haskell	2023-06-29 12:19:38
3	Lim Ming Yean	261	Haskell	2019-03-29 08:41:32
4	Aiden Lara	299	Haskell	2024-05-04 03:35:53
5	Jan Hrček	328	Haskell	2021-03-14 08:45:15
6	Steinar Simonnes	350	Haskell	2024-03-29 15:49:14
7	Hidden user	362	Haskell	2019-08-28 18:11:10
8	Aurélien Pepin	446	Haskell	2019-09-21 09:15:31
9	Caleb Surovik	516	Haskell	2021-07-18 05:33:30
10	Jim O'Brien	673	Haskell	2019-05-10 07:46:09

#	User	Length	Language	Date
1	Hidden user	243	Java	2020-08-28 13:27:25
2	Emil Bak-Møller	260	Java	2019-02-20 03:50:19
3	Chen Shenghao	277	Java	2019-01-08 17:57:37
4	Siddh Shah	291	Java	2020-09-09 04:03:24
5	Caleb Styles	299	Java	2021-11-19 19:34:37
6	abdalla hablas	309	Java	2019-01-23 22:53:42
7	Ada Clevinger	324	Java	2018-06-01 16:53:02
8	Guðjón Karl Ólafsson	324	Java	2019-04-09 01:33:21
9	Tan Yee Jian	326	Java	2019-01-21 08:15:32
10	Sathvik Kuthuru	332	Java	2019-02-01 02:17:16

#	User	Length	Language	Date
1	TEJA KUSUMA	321	JavaScript (Node.js)	2024-03-10 11:11:52
2	Hovhannes Kantuni	439	JavaScript (Node.js)	2021-03-13 01:55:24
3	Ankit Agrawal	441	JavaScript (Node.js)	2022-09-29 22:00:57
4	Peter Kedemo	443	JavaScript (Node.js)	2020-01-06 10:05:50
5	Angelo Adams	526	JavaScript (Node.js)	2020-03-02 10:15:21
6	Ram Basnet	559	JavaScript (Node.js)	2018-09-20 05:58:01
7	Stephanie Keck	600	JavaScript (Node.js)	2020-01-17 23:21:45
8	Kimlong Seng	671	JavaScript (Node.js)	2020-02-27 07:23:05
9	Sander Hellesø	688	JavaScript (Node.js)	2019-05-04 07:19:35
10	Marko Lazic	716	JavaScript (Node.js)	2018-06-16 08:55:17

#	User	Length	Language	Date
1	Peter Menyes	76	JavaScript (SpiderMonkey)	2021-10-16 17:44:33
2	Christian Cederquist	221	JavaScript (SpiderMonkey)	2023-01-31 23:12:12
3	Bjørn Chr. Soltvedt	289	JavaScript (SpiderMonkey)	2018-04-08 18:22:33
4	Casey Smith	379	JavaScript (SpiderMonkey)	2019-05-30 19:59:32
5	Benjamin Eli van Rhee	865	JavaScript (SpiderMonkey)	2024-10-01 06:31:14

#	User	Length	Language	Date
1	Timothy Gaede	323	Julia	2025-04-23 18:30:09

#	User	Length	Language	Date
1	Chris Johnson	250	Kotlin	2023-04-14 15:32:13
2	Troy Warmboe	310	Kotlin	2020-02-20 02:58:07
3	Chris Ward	315	Kotlin	2019-09-19 12:23:06
4	Ola Sundell	476	Kotlin	2018-06-13 14:22:17
5	Ashish Singh	554	Kotlin	2023-01-30 14:57:33
6	Hidden user	562	Kotlin	2019-12-20 17:33:31
7	Marit van Dijk	569	Kotlin	2019-01-27 11:02:13
8	Adam Rankin	586	Kotlin	2023-04-26 00:39:10
9	Neil Harmon	636	Kotlin	2019-06-07 16:18:48
10	Johnny Baloney	707	Kotlin	2021-12-05 20:06:23

#	User	Length	Language	Date
1	Zeheng Li	102	Lua	2023-12-13 00:39:59

#	User	Length	Language	Date
1	Bùi Quốc Trung	166	Pascal	2019-07-03 11:04:21
2	Kiên Nguyễn Tiến Trung	166	Pascal	2019-07-03 17:16:58
3	Ingemar Ragnemalm	183	Pascal	2018-05-04 09:51:57
4	Quang Nhat	665	Pascal	2019-07-03 09:39:26
5	Dũ Quốc Huy	1296	Pascal	2019-07-03 11:15:18

#	User	Length	Language	Date
1	Thomas Feld	24	PHP	2023-01-31 13:16:12
2	Markus Weller	197	PHP	2019-02-21 14:48:28
3	Connor Billings	245	PHP	2020-07-11 16:19:50

#	User	Length	Language	Date
1	Andriy Zyevakov	263	Prolog	2018-12-04 17:17:31

#	User	Length	Language	Date
1	Guk Yi Siong	35	Python 2	2023-12-26 12:13:13
2	Thomas Feld	58	Python 2	2019-09-05 10:38:29
3	Andrei Stoica	63	Python 2	2019-04-21 23:20:08
4	Hidden user	86	Python 2	2022-04-14 14:46:56
5	Julio Cesar Mamani Villena	102	Python 2	2020-12-10 01:29:11
6	Ragur Krishnan	109	Python 2	2019-01-12 19:51:39
7	Jesper Öqvist	111	Python 2	2018-10-29 18:12:02
8	FATIMA EZZAHRA ACHAIT	116	Python 2	2021-09-13 17:14:19
9	Lars Åström	136	Python 2	2019-10-10 09:24:02
10	Myat Htut Kyaw	164	Python 2	2020-01-28 16:18:02

#	User	Length	Language	Date
1	Lee Isaac	37	Python 3	2022-11-08 18:40:53
2	Guk Yi Siong	37	Python 3	2023-12-26 12:12:41
3	Guangyi Zhou	40	Python 3	2025-02-02 16:17:23
4	Hugo Morvan	41	Python 3	2023-03-02 03:09:09
5	Josh Henderson	41	Python 3	2023-03-02 17:36:13
6	Charles Ancheta	44	Python 3	2023-03-24 06:19:03
7	Hidden user	45	Python 3	2023-07-01 23:01:53
8	Niklas Lav	47	Python 3	2020-11-06 10:26:27
9	Tam Keng Hong	50	Python 3	2023-01-05 08:22:04
10	Eduardo Vicente Petry	53	Python 3	2023-03-13 21:39:31

#	User	Length	Language	Date
1	Thomas Feld	30	Ruby	2022-12-07 13:04:31
2	Gustav Elmqvist	34	Ruby	2023-03-21 23:38:50
3	Kok Dith	109	Ruby	2021-08-25 12:09:40
4	Oleg Smelov	135	Ruby	2019-02-23 19:15:06
5	Miorel Palii	230	Ruby	2018-04-09 02:23:08
6	Macdara mac an tSionnaigh	250	Ruby	2019-11-22 23:39:09

#	User	Length	Language	Date
1	Bas Dirks	375	Rust	2022-01-08 10:28:24
2	Vincent Lagerros	431	Rust	2025-01-26 21:50:44
3	David Zacek	464	Rust	2021-07-12 22:08:31
4	David Rasch	586	Rust	2020-10-05 16:49:40
5	Serguei Antonovich Kirillov	637	Rust	2019-11-27 00:59:25
6	Eric Pinter	980	Rust	2021-07-14 16:52:21
7	Isak Jägberg	1549	Rust	2023-03-22 14:24:17
8	Giang Đào	6796	Rust	2023-01-05 15:28:04
9	Daniel Anker Hermansen	27361	Rust	2024-08-22 14:32:20

#	User	Length	Language	Date
1	Tuomas Maanonen	559	TypeScript	2024-11-13 09:17:20

Solution running time distribution