Problem A
Sun and Moon — Problem Statistics

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Submissions	2230
Accepted submissions	961
Submission ratio	43.09%
Authors	950
Full solves [?]	830
Full solve Ratio	87.37%

#	User	Runtime	Language	Date
1	Mark Meysenburg	0.02 s	C#	2023-02-27 16:52:14
2	Cassandra Christensen	0.02 s	C#	2023-03-03 17:10:44
3	Victor Rasmussen	0.02 s	C#	2023-03-10 16:35:01
4	Elijah	0.02 s	C#	2023-03-20 20:36:22
5	Jack Cannell	0.04 s	C#	2023-12-02 23:20:48
6	Chen Lili	0.04 s	C#	2023-12-02 23:48:50
7	traxex	0.04 s	C#	2024-05-28 12:51:22
8	Գոռ Բաղդասարյան	0.04 s	C#	2024-08-01 13:16:22
9	sa	0.04 s	C#	2024-08-28 01:04:29
10	John Jones	0.04 s	C#	2024-10-05 18:38:16

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.07 s	F#	2023-05-08 17:22:26

#	User	Runtime	Language	Date
1	Aaron Nichols	0.00 s	Go	2024-01-30 01:08:14
2	Norbert Voelker	0.02 s	Go	2023-03-04 15:33:29
3	Andreas Wachs	0.02 s	Go	2023-03-10 17:07:33

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2023-02-26 10:32:44
2	Mason Barnhill	0.00 s	Haskell	2023-05-02 23:30:32
3	Steinar Simonnes	0.00 s	Haskell	2023-05-31 21:35:51
4	Ng Tek In	0.00 s	Haskell	2023-08-31 20:16:32
5	Chen Huo	0.00 s	Haskell	2024-10-18 06:16:13
6	Brent Yorgey	0.01 s	Haskell	2023-02-26 05:50:14
7	Jeroen Jongkees	0.01 s	Haskell	2024-01-13 18:03:55

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Java	2024-08-29 12:40:51
2	Onorato, Estevan	0.05 s	Java	2024-04-11 15:25:06
3	Cody Morrow	0.05 s	Java	2024-04-11 15:25:57
4	Marco Troltsch	0.05 s	Java	2024-06-19 14:06:29
5	Roba Abbajabal	0.06 s	Java	2023-02-25 19:28:17
6	Saathvik Selvan	0.06 s	Java	2023-02-28 01:10:25
7	Dylan Smith	0.06 s	Java	2023-03-02 04:51:18
8	Brennan C	0.06 s	Java	2023-03-02 16:28:03
9	Ranjith M	0.06 s	Java	2023-03-03 01:31:19
10	Sven Rönnbäck	0.06 s	Java	2023-05-23 21:18:38

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-26 08:14:08
2	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2023-02-27 20:02:33
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-27 00:23:24
4	Elmer Asibey	0.02 s	JavaScript (SpiderMonkey)	2025-01-29 17:51:30

#	User	Runtime	Language	Date
1	Timothy Gaede	0.59 s	Julia	2024-04-11 07:10:04
2	Danny Robinson	0.68 s	Julia	2023-09-11 00:01:41

#	User	Runtime	Language	Date
1	Sam Keyser	0.13 s	Kotlin	2023-03-02 21:33:31
2	Troy Warmboe	0.18 s	Kotlin	2023-04-12 00:01:19
3	Will	0.18 s	Kotlin	2024-01-21 03:19:23
4	Adam Rankin	0.20 s	Kotlin	2023-04-25 04:45:20
5	Martijn Muijsers	0.20 s	Kotlin	2024-06-03 14:29:07

#	User	Runtime	Language	Date
1	Zeheng Li	0.00 s	Lua	2023-12-10 09:57:53

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	OCaml	2025-03-25 11:52:56

#	User	Runtime	Language	Date
1	Andre Wahyudi	0.01 s	PHP	2023-03-15 04:32:54

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-03-07 20:47:45
2	Andriy Zyevakov	0.02 s	Prolog	2024-11-14 15:14:10

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.02 s	Python 2	2023-07-18 11:28:27
2	Johan Lyts	0.03 s	Python 2	2023-02-26 14:08:52

#	User	Runtime	Language	Date
1	Patrick May	0.04 s	Python 3	2023-03-06 19:43:10
2	Eduardo Vicente Petry	0.04 s	Python 3	2023-03-08 08:50:19
3	Adam Rosenørn	0.04 s	Python 3	2023-03-10 16:36:37
4	Freek van Keulen	0.04 s	Python 3	2023-03-18 17:16:15
5	Brandon Lewis	0.04 s	Python 3	2023-03-25 20:00:47
6	Rosa Shah	0.04 s	Python 3	2023-04-01 19:42:04
7	Teikn Smith	0.04 s	Python 3	2023-05-26 16:05:31
8	Sean Hagen	0.04 s	Python 3	2023-06-04 18:22:10
9	Gang Wei	0.04 s	Python 3	2024-09-01 11:30:22
10	Spencer Lee	0.04 s	Python 3	2024-09-06 01:16:29

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-02-27 11:05:50
2	Miorel Palii	0.06 s	Ruby	2024-11-29 05:12:51

#	User	Runtime	Language	Date
1	Alice Ryhl	0.00 s	Rust	2023-03-10 16:30:23
2	Ian Riley	0.00 s	Rust	2023-05-29 22:08:55
3	David Rasch	0.00 s	Rust	2023-09-21 16:51:35
4	Bas Dirks	0.00 s	Rust	2023-12-25 22:08:12
5	Vincent Lagerros	0.00 s	Rust	2025-09-03 15:05:38

#	User	Length	Language	Date
1	紅茶	247	C	2023-03-03 15:08:09
2	Magnus August McCubbin	262	C	2023-03-10 17:24:46
3	Alyssa Carney	277	C	2024-04-10 20:43:26
4	Raphael Alexander	289	C	2023-08-01 11:01:16
5	Trieu Nhu Ngoc (K18 CT)	293	C	2024-05-27 09:32:30
6	Isabelle Lassfolk	301	C	2024-12-31 14:37:14
7	Trinh Nguyen Bao Duy (K18 CT)	308	C	2024-05-27 09:29:01
8	klimisnotmilk	344	C	2024-03-09 12:09:15
9	Keerthi Gullapalli	407	C	2025-01-24 23:29:35
10	Hidden user	422	C	2025-01-05 19:31:09

#	User	Length	Language	Date
1	traxex	348	C#	2024-05-28 12:51:22
2	sa	722	C#	2024-08-28 01:04:29
3	Mark Meysenburg	754	C#	2023-02-27 16:52:14
4	Գոռ Բաղդասարյան	896	C#	2024-08-01 13:16:22
5	Elijah	907	C#	2023-03-20 20:36:22
6	John Jones	910	C#	2024-10-05 18:38:16
7	Victor Rasmussen	1097	C#	2023-03-10 16:35:01
8	Cassandra Christensen	1761	C#	2023-03-03 17:10:44
9	Jack Cannell	4872	C#	2023-12-02 23:20:48
10	Chen Lili	8663	C#	2023-12-02 23:48:50

#	User	Length	Language	Date
1	Brennan Lagasse	195	C++	2024-06-22 21:54:46
2	Yung Chi Li	204	C++	2023-03-12 21:48:22
3	Jesús Pacheco Alonso	214	C++	2023-09-15 20:18:47
4	Luca Dolci	225	C++	2023-09-04 22:08:19
5	Ralf Merhof	233	C++	2024-09-24 13:59:13
6	Grae Yeandle	243	C++	2023-02-27 08:40:35
7	Joseph Cai	247	C++	2023-02-25 19:05:16
8	Никита Кулик	248	C++	2023-03-07 12:46:35
9	Ryan Wu	250	C++	2023-06-25 09:05:30
10	王奇立	250	C++	2024-06-10 11:42:50

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	434	F#	2023-05-08 17:22:26

#	User	Length	Language	Date
1	Aaron Nichols	412	Go	2024-01-30 01:08:14
2	Norbert Voelker	604	Go	2023-03-04 15:24:13
3	Andreas Wachs	1040	Go	2023-03-10 17:07:33

#	User	Length	Language	Date
1	Steinar Simonnes	198	Haskell	2023-05-31 21:35:51
2	Chen Huo	291	Haskell	2024-10-18 06:16:13
3	Hidden user	313	Haskell	2023-02-26 10:32:44
4	Mason Barnhill	351	Haskell	2023-05-02 23:30:32
5	Brent Yorgey	446	Haskell	2023-02-26 05:50:14
6	Jeroen Jongkees	496	Haskell	2024-01-13 18:03:55
7	Ng Tek In	838	Haskell	2023-08-31 20:16:32

#	User	Length	Language	Date
1	Hidden user	246	Java	2025-01-02 20:56:09
2	Jacob Burtch	429	Java	2023-02-25 20:18:57
3	Matthijs De Vries	437	Java	2025-10-18 22:10:18
4	Golden Rams 2	445	Java	2023-02-25 21:20:37
5	Lena Fondeur	453	Java	2024-10-12 20:47:09
6	Brennan Cleland	465	Java	2023-02-28 01:13:35
7	Arun Deegutla	490	Java	2023-02-27 21:08:39
8	Shreya Chakraborty	496	Java	2024-09-01 17:59:18
9	Tracy Ragland	514	Java	2025-10-25 04:35:05
10	Kaleb Cole	516	Java	2023-02-26 15:29:54

#	User	Length	Language	Date
1	Jimmy Gustafsson	87	JavaScript (SpiderMonkey)	2024-07-27 00:23:24
2	Christian Pilegaard Cederquist	199	JavaScript (SpiderMonkey)	2023-02-26 08:14:08
3	Bjørn Chr. Soltvedt	413	JavaScript (SpiderMonkey)	2023-02-27 20:02:33
4	Elmer Asibey	539	JavaScript (SpiderMonkey)	2025-01-29 17:51:30

#	User	Length	Language	Date
1	Danny Robinson	111	Julia	2023-09-11 00:01:41
2	Timothy Gaede	684	Julia	2024-04-11 07:10:59

#	User	Length	Language	Date
1	Sam Keyser	332	Kotlin	2023-03-02 21:33:31
2	Martijn Muijsers	517	Kotlin	2024-06-03 14:29:07
3	Adam Rankin	530	Kotlin	2023-04-25 04:45:20
4	Troy Warmboe	709	Kotlin	2023-04-12 00:01:19
5	Will	3826	Kotlin	2024-01-21 03:19:23

#	User	Length	Language	Date
1	Zeheng Li	163	Lua	2023-12-10 09:57:53

#	User	Length	Language	Date
1	Hidden user	228	OCaml	2025-03-25 11:52:56

#	User	Length	Language	Date
1	Andre Wahyudi	1259	PHP	2023-03-15 04:32:54

#	User	Length	Language	Date
1	Hakan Kjellerstrand	156	Prolog	2023-03-07 20:49:30
2	Andriy Zyevakov	3571	Prolog	2024-11-14 15:14:10

#	User	Length	Language	Date
1	Johan Lyts	167	Python 2	2023-02-26 14:08:52
2	Yanmarshus Bachtiar	229	Python 2	2023-07-18 11:28:27

#	User	Length	Language	Date
1	Farzam Abrishami	98	Python 3	2024-01-20 20:08:08
2	Shashank Bhatt	100	Python 3	2023-02-26 19:13:38
3	Ahmed Chamseddine	100	Python 3	2023-10-04 14:03:56
4	Peter Stauder	103	Python 3	2023-02-27 20:52:58
5	Jeroen Op de Beek	111	Python 3	2024-12-22 00:09:42
6	Josh Taylor	112	Python 3	2023-03-01 22:50:19
7	David Aldenbro	112	Python 3	2025-08-25 21:45:35
8	Eduardo Vicente Petry	113	Python 3	2023-03-08 08:50:19
9	Matthew Freestone	113	Python 3	2023-08-28 07:14:58
10	Clement Oh	113	Python 3	2023-10-22 05:23:30

#	User	Length	Language	Date
1	Thomas Feld	55	Ruby	2023-02-27 12:15:25
2	Miorel Palii	200	Ruby	2024-11-29 05:12:51

#	User	Length	Language	Date
1	David Rasch	582	Rust	2023-09-21 16:51:35
2	Vincent Lagerros	589	Rust	2025-09-03 15:05:38
3	Bas Dirks	878	Rust	2023-12-25 22:08:12
4	Alice Ryhl	944	Rust	2023-03-10 16:30:23
5	Ian Riley	1383	Rust	2023-05-29 22:08:55

Solution running time distribution