Problem D
Rating Problems — Problem Statistics

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Submissions	12445
Accepted submissions	6911
Submission ratio	55.53%
Authors	6625
Full solves [?]	6377
Full solve Ratio	96.26%

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	APL	2023-03-08 04:30:20
2	Steve Allen	0.01 s	APL	2023-04-24 07:35:40

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.07 s	Bash	2024-06-16 18:08:54

#	User	Runtime	Language	Date
1	Mikael Fiala-Lundström	0.02 s	C#	2021-05-20 12:54:37
2	Maykal Droshev	0.02 s	C#	2021-05-20 15:28:28
3	Ricardo Miguel Bento Gabriel	0.02 s	C#	2021-05-21 20:51:26
4	Hieu	0.02 s	C#	2021-05-21 21:17:23
5	Rasmus Öjebro	0.02 s	C#	2021-05-23 22:29:46
6	Per Wendt	0.02 s	C#	2021-05-25 13:46:20
7	Christoffer Hultgren	0.02 s	C#	2021-05-27 21:01:18
8	Sinan kaplan	0.02 s	C#	2021-05-29 10:32:29
9	Peter Andersen	0.02 s	C#	2021-06-02 14:11:10
10	Toby Maynard	0.02 s	C#	2021-06-11 17:35:29

#	User	Runtime	Language	Date
1	Ralf Jonas	0.01 s	Common Lisp	2023-09-07 14:44:54
2	yraten	0.01 s	Common Lisp	2024-04-15 04:23:49

#	User	Runtime	Language	Date
1	Tim Mondorf	0.04 s	F#	2021-11-27 08:50:23
2	Jacob Harris Cryer Kragh	0.04 s	F#	2022-05-23 18:49:01
3	Elias Smedegaard	0.08 s	F#	2023-11-16 12:44:36

#	User	Runtime	Language	Date
1	Diego Saldias	0.00 s	Go	2023-10-27 16:57:35
2	Malte Ulrik Thomsen	0.00 s	Go	2024-09-02 15:11:43
3	Kaleb Petersen	0.00 s	Go	2025-03-22 18:56:12
4	Jimmy Nejtron	0.02 s	Go	2022-11-09 20:32:52
5	dick move	0.07 s	Go	2021-05-29 19:13:36
6	Kok Dith	0.07 s	Go	2021-07-29 09:07:55
7	Stephen Lineker-Miller	0.07 s	Go	2021-12-12 23:59:32
8	David Zacek	0.08 s	Go	2021-05-20 18:49:32
9	Krzysztof Gibuła	0.08 s	Go	2021-05-20 23:44:22
10	Norbert Voelker	0.08 s	Go	2021-05-21 21:50:54

#	User	Runtime	Language	Date
1	Lee Heng Sheng	0.05 s	Java	2024-04-14 07:18:59
2	Hussin Suleiman	0.05 s	Java	2024-05-13 21:59:21
3	Crystal Sharpe	0.06 s	Java	2021-05-24 22:59:36
4	Joachim Borup	0.06 s	Java	2021-05-30 23:21:23
5	Asmus Tørsleff	0.06 s	Java	2021-08-03 17:16:27
6	Paul Nguyen	0.07 s	Java	2021-03-06 20:39:21
7	Patrick Sullivan	0.07 s	Java	2021-03-06 20:43:36
8	Toh Bing Cheng	0.07 s	Java	2021-05-20 04:18:51
9	Nadja Brix Koch	0.07 s	Java	2021-05-25 11:01:55
10	Kristoffer Borgstrøm	0.07 s	Java	2021-06-01 00:20:51

#	User	Runtime	Language	Date
1	Athergaming	0.05 s	JavaScript (Node.js)	2023-10-13 08:57:05
2	Christopher Churchwell	0.05 s	JavaScript (Node.js)	2023-11-24 16:29:40
3	Yassin Swag	0.05 s	JavaScript (Node.js)	2023-12-01 13:45:52
4	Faisal Rahman	0.05 s	JavaScript (Node.js)	2024-01-30 23:26:04
5	Hidden user	0.05 s	JavaScript (Node.js)	2024-08-30 03:50:27
6	John	0.08 s	JavaScript (Node.js)	2022-07-14 13:47:17
7	Martin Chemander	0.09 s	JavaScript (Node.js)	2022-11-21 15:30:53
8	Marko Doroch	0.09 s	JavaScript (Node.js)	2022-12-05 04:49:06
9	asterisk man	0.41 s	JavaScript (Node.js)	2021-06-06 17:37:01
10	Antoine Bauri	0.42 s	JavaScript (Node.js)	2021-06-04 15:47:21

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2021-05-21 11:18:57
2	Emmanoel Hastono	0.02 s	JavaScript (SpiderMonkey)	2021-06-16 11:26:20
3	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-08-08 18:53:51
4	Sai Seng	0.02 s	JavaScript (SpiderMonkey)	2021-08-22 18:15:46
5	Keith	0.02 s	JavaScript (SpiderMonkey)	2021-08-22 18:16:14
6	Nicklas Utgaard	0.02 s	JavaScript (SpiderMonkey)	2021-12-22 19:12:34
7	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2022-06-14 00:29:58
8	Alexander Vestin	0.02 s	JavaScript (SpiderMonkey)	2022-10-15 22:18:13
9	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2022-10-30 15:17:19
10	Tor Nordqvist	0.02 s	JavaScript (SpiderMonkey)	2022-12-12 19:47:15

#	User	Runtime	Language	Date
1	Timothy Gaede	0.55 s	Julia	2024-03-18 19:49:07
2	Danny Robinson	0.63 s	Julia	2023-06-22 02:30:53

#	User	Runtime	Language	Date
1	Albert Pala	0.12 s	Kotlin	2021-05-27 02:24:08
2	Nicholas Johnson	0.13 s	Kotlin	2021-07-22 20:42:23
3	Kiel Dowdle	0.13 s	Kotlin	2021-08-13 22:27:36
4	Jacob Huebner	0.13 s	Kotlin	2021-09-13 23:47:19
5	Roger Bongers	0.14 s	Kotlin	2021-06-26 19:22:40
6	Katherine Spaan	0.14 s	Kotlin	2021-08-27 01:02:54
7	Tyler Ridout	0.14 s	Kotlin	2021-08-28 18:23:18
8	John Burke	0.14 s	Kotlin	2021-08-29 20:02:42
9	Aaron J Sickafuse	0.14 s	Kotlin	2021-08-29 22:37:42
10	Tim Warner	0.14 s	Kotlin	2021-09-01 00:19:07

#	User	Runtime	Language	Date
1	Caleb Austin	0.00 s	Lua	2024-08-23 23:50:05
2	Matthew Farshad	0.00 s	Lua	2025-02-19 21:12:11

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-04-21 03:56:17

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2021-05-21 23:08:53
2	Khoa Ngo Duc Minh	0.00 s	Pascal	2021-06-07 07:12:27
3	David Connolly	0.00 s	Pascal	2021-10-14 12:05:20

#	User	Runtime	Language	Date
1	Saito Ta	0.01 s	Perl	2024-03-29 03:22:05

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2021-05-20 21:52:43
2	Andre Wahyudi	0.01 s	PHP	2022-09-19 11:43:14
3	Petrus Dughem	0.01 s	PHP	2022-10-28 14:56:16

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	Prolog	2022-08-18 10:44:36
2	Hakan Kjellerstrand	0.02 s	Prolog	2023-01-27 20:21:16

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.02 s	Python 2	2022-06-18 22:27:13
2	Andreas Björklund	0.03 s	Python 2	2021-05-21 06:44:06
3	Thomas Feld	0.03 s	Python 2	2021-05-21 08:30:43
4	Johan Lyts	0.03 s	Python 2	2021-05-25 12:17:31
5	Yanmarshus Bachtiar	0.03 s	Python 2	2021-05-29 04:40:59
6	Andrei Stoica	0.03 s	Python 2	2021-08-23 16:54:44
7	Björn Magnusson	0.03 s	Python 2	2021-10-13 17:28:10
8	Gibransyah	0.03 s	Python 2	2021-11-03 13:15:21
9	Olav Røthe Bakken	0.03 s	Python 2	2021-11-21 11:44:23
10	Elisabeth Pongratz	0.03 s	Python 2	2022-12-21 16:44:53

#	User	Runtime	Language	Date
1	Aakanksha Khandwaha	0.04 s	Python 3	2022-06-04 20:56:26
2	András Biczó	0.04 s	Python 3	2022-06-08 15:10:11
3	Amanda Andersson	0.04 s	Python 3	2022-06-08 22:00:07
4	crapcode	0.04 s	Python 3	2022-06-10 23:54:50
5	Hidden user	0.04 s	Python 3	2022-06-13 02:56:33
6	Hugo Falkman	0.04 s	Python 3	2022-06-13 15:47:13
7	Mohsen Mahroos	0.04 s	Python 3	2022-06-13 17:57:26
8	Hasan Kalzi	0.04 s	Python 3	2022-06-18 22:28:13
9	Rishikesh Muppana	0.04 s	Python 3	2022-06-19 05:32:13
10	Guru Prasath	0.04 s	Python 3	2022-06-19 06:35:09

#	User	Runtime	Language	Date
1	Angus Gibson	0.13 s	Racket	2025-07-15 04:10:34

#	User	Runtime	Language	Date
1	Jonathan Ogden	0.05 s	Ruby	2021-05-25 23:50:54
2	Olivia Bednar	0.05 s	Ruby	2021-11-05 07:24:05
3	Jack Scheffel	0.05 s	Ruby	2021-11-11 22:51:59
4	Régis Hanol	0.05 s	Ruby	2022-01-04 16:26:21
5	Markus Mathiasen	0.05 s	Ruby	2022-01-10 20:47:07
6	Patrick Elsen	0.05 s	Ruby	2022-09-09 14:11:07
7	Thomas Feld	0.06 s	Ruby	2022-11-01 09:59:56
8	dick move	0.06 s	Ruby	2022-11-10 01:03:15
9	Alexander Bilde Pedersen	0.06 s	Ruby	2023-04-06 16:50:25
10	Eugen Neagoe	0.06 s	Ruby	2023-04-20 23:30:43

#	User	Runtime	Language	Date
1	Jonas Deichelmann	0.00 s	Swift	2023-10-04 23:31:49
2	Danial Haseeb	0.00 s	Swift	2023-10-08 10:06:14

#	User	Runtime	Language	Date
1	Jhony Andreas	0.04 s	Visual Basic	2023-07-05 12:38:00

#	User	Runtime	Language	Date
1	Joe Blower	0.00 s	Zig	2025-05-28 23:34:36

#	User	Length	Language	Date
1	Steve Allen	58	APL	2023-04-24 07:59:04
2	Hidden user	76	APL	2023-03-08 04:30:20

#	User	Length	Language	Date
1	Chenzhang Hu	62	Bash	2025-09-13 02:11:34

#	User	Length	Language	Date
1	Martin Blom	124	C	2023-09-15 13:35:14
2	Oliver Ruste Jahren	149	C	2023-05-18 23:56:38
3	Jonatan Altebro	154	C	2025-04-28 12:46:47
4	Asmae Nadifi	232	C	2021-12-31 19:21:50
5	Mathias Kinninkpo	235	C	2023-08-21 04:00:32
6	Pham Nguyen Tuan Nguyen (K17_CT)	239	C	2022-10-10 13:07:49
7	Nicholas Giang	239	C	2023-08-02 03:07:45
8	Mason Anderson	241	C	2024-11-04 19:22:03
9	Adam eldelbani	247	C	2021-09-23 22:09:49
10	Alex Nugent	255	C	2022-10-27 10:36:57

#	User	Length	Language	Date
1	Theodore Glenn	254	C#	2023-02-17 18:32:56
2	Aiden Bilyeu	265	C#	2023-02-05 02:53:18
3	bhanu prakash konda	294	C#	2023-09-26 23:22:59
4	James Park	373	C#	2022-10-20 20:36:03
5	Sandeep Karanam	382	C#	2024-10-06 20:13:04
6	Pontus Magnusson	389	C#	2024-03-26 22:46:59
7	Göran Andersson	403	C#	2022-05-07 18:09:11
8	Medha Alla	417	C#	2023-09-29 22:32:36
9	Sravani Dondapati	432	C#	2023-09-30 21:01:05
10	Kumara Swamy Padigeri	446	C#	2024-10-04 18:46:00

#	User	Length	Language	Date
1	Jordan A Hopkins	125	C++	2023-07-25 20:26:32
2	a_b__c	170	C++	2021-08-17 19:02:34
3	Eyob Tariku	194	C++	2023-07-04 23:01:38
4	EmmaMedeea Ploscar	202	C++	2021-10-11 23:08:56
5	Clinton Connelly	207	C++	2023-11-15 23:27:37
6	KRIS NATALIS	208	C++	2024-02-08 13:49:14
7	Hussein Taher	209	C++	2021-05-20 23:54:28
8	Izz Hafeez Bin Zek Hazley	212	C++	2023-08-01 15:24:42
9	Zachary Destefano	213	C++	2021-03-06 20:03:33
10	Lorena Hantig	213	C++	2021-09-28 12:43:31

#	User	Length	Language	Date
1	yraten	235	Common Lisp	2024-04-15 04:23:49
2	Ralf Jonas	428	Common Lisp	2023-09-07 14:44:54

#	User	Length	Language	Date
1	Elias Smedegaard	612	F#	2023-11-16 12:44:36
2	Jacob Harris Cryer Kragh	728	F#	2022-05-23 18:49:01
3	Tim Mondorf	904	F#	2021-11-27 08:50:23

#	User	Length	Language	Date
1	Jahid Hasan Imon	226	Go	2021-07-25 09:00:34
2	David Zacek	248	Go	2021-05-20 18:49:32
3	dick move	269	Go	2021-05-29 19:13:36
4	Diego Saldias	296	Go	2023-10-27 16:57:35
5	Marcus Asplund	323	Go	2022-02-09 15:45:30
6	Andreas Just Petersen	340	Go	2021-11-15 14:00:02
7	Jimmy Nejtron	363	Go	2022-11-09 20:32:52
8	Sahil Mehra	368	Go	2022-02-17 17:48:13
9	Bridger Howell	380	Go	2022-03-21 22:50:05
10	Muhammad Auliya	407	Go	2022-03-25 10:45:03

#	User	Length	Language	Date
1	John Doe	87	Haskell	2023-04-19 09:37:16
2	Steinar Simonnes	132	Haskell	2023-06-11 23:10:19
3	Herdi Saleh	171	Haskell	2025-04-18 18:29:26
4	Matthew Johnson	211	Haskell	2022-12-02 15:30:25
5	Tomas Möre	232	Haskell	2022-02-06 20:49:53
6	Hidden user	247	Haskell	2022-11-09 14:01:19
7	Sebastian Banert	285	Haskell	2023-04-05 11:33:21
8	fendor	295	Haskell	2022-11-09 21:23:15
9	Elizabeth Doughty	333	Haskell	2024-01-27 09:12:53
10	Jana Chadt	341	Haskell	2022-11-09 21:35:34

#	User	Length	Language	Date
1	Lim Ting Kai	297	Java	2023-05-29 13:04:28
2	MOHAN KUMAR S	321	Java	2025-04-10 13:25:16
3	Jamie Walton	323	Java	2021-11-14 22:59:55
4	Brennan Cleland	331	Java	2022-11-22 04:47:57
5	Kevin Kauffman	340	Java	2021-11-02 04:29:25
6	Liang Lyu	344	Java	2021-03-06 20:02:42
7	VIGNESHWARAN.M	346	Java	2025-04-13 14:41:08
8	Xian McGinnis	348	Java	2023-10-29 01:42:33
9	Jason Liu	351	Java	2023-04-20 18:25:30
10	Russell Rivard	355	Java	2022-01-21 20:17:19

#	User	Length	Language	Date
1	Howard Tin Chi Chan	444	JavaScript (Node.js)	2022-01-10 19:32:18
2	Yassin Swag	478	JavaScript (Node.js)	2023-12-01 13:45:52
3	asterisk man	498	JavaScript (Node.js)	2021-06-06 17:37:01
4	Peter Kedemo	512	JavaScript (Node.js)	2022-01-02 10:32:05
5	Antoine Bauri	535	JavaScript (Node.js)	2021-06-04 15:47:21
6	Athergaming	554	JavaScript (Node.js)	2023-10-13 08:57:05
7	Christopher Churchwell	555	JavaScript (Node.js)	2023-11-24 16:29:40
8	Martin Chemander	603	JavaScript (Node.js)	2022-11-21 15:30:53
9	Hidden user	622	JavaScript (Node.js)	2023-01-26 05:52:06
10	Faisal Rahman	646	JavaScript (Node.js)	2024-01-30 23:26:04

#	User	Length	Language	Date
1	Christian Cederquist	89	JavaScript (SpiderMonkey)	2022-10-30 15:22:19
2	Ben Armstrong	143	JavaScript (SpiderMonkey)	2025-07-01 18:41:17
3	Jimmy Gustafsson	187	JavaScript (SpiderMonkey)	2022-06-14 00:29:58
4	Bjørn Chr. Soltvedt	197	JavaScript (SpiderMonkey)	2021-05-21 11:18:57
5	Evan Magill	210	JavaScript (SpiderMonkey)	2024-04-07 06:04:17
6	Emmanoel Hastono	236	JavaScript (SpiderMonkey)	2021-06-16 11:26:20
7	Peter Menyes	307	JavaScript (SpiderMonkey)	2021-08-08 18:53:51
8	Tor Nordqvist	312	JavaScript (SpiderMonkey)	2022-12-12 19:47:15
9	Alexander Vestin	346	JavaScript (SpiderMonkey)	2022-10-15 22:18:13
10	Sai Seng	392	JavaScript (SpiderMonkey)	2021-08-22 18:15:46

#	User	Length	Language	Date
1	Danny Robinson	98	Julia	2023-06-22 02:30:53
2	Timothy Gaede	535	Julia	2024-03-18 19:49:07

#	User	Length	Language	Date
1	Emil Wihlander	284	Kotlin	2023-05-07 21:46:23
2	Maria Mihai	289	Kotlin	2021-06-21 18:23:10
3	Roger Bongers	314	Kotlin	2021-06-26 19:22:40
4	Sergey Jakobsen	339	Kotlin	2021-05-21 20:09:13
5	Anders B. Clausen	340	Kotlin	2021-07-04 00:35:14
6	Jacob Huebner	350	Kotlin	2021-09-10 21:35:12
7	Ryan Betz	361	Kotlin	2021-09-01 02:07:32
8	John Burke	363	Kotlin	2021-08-29 20:02:42
9	Troy Warmboe	369	Kotlin	2021-10-09 02:23:36
10	Mahdi Abdullah	378	Kotlin	2021-08-08 19:04:26

#	User	Length	Language	Date
1	Caleb Austin	404	Lua	2024-08-23 23:50:05
2	Matthew Farshad	523	Lua	2025-02-19 21:12:11

#	User	Length	Language	Date
1	Hidden user	299	Odin	2025-04-21 03:56:17

#	User	Length	Language	Date
1	Ingemar Ragnemalm	302	Pascal	2021-05-21 23:08:53
2	Khoa Ngo Duc Minh	370	Pascal	2021-06-07 07:12:27
3	David Connolly	1002	Pascal	2021-10-14 12:05:20

#	User	Length	Language	Date
1	Saito Ta	74	Perl	2024-03-29 03:22:05

#	User	Length	Language	Date
1	Renate	307	PHP	2021-05-20 21:52:43
2	Andre Wahyudi	810	PHP	2022-09-19 11:43:14
3	Petrus Dughem	831	PHP	2022-10-28 14:56:16

#	User	Length	Language	Date
1	Hakan Kjellerstrand	473	Prolog	2023-01-27 20:21:16
2	Andriy Zyevakov	638	Prolog	2022-08-18 10:44:36

#	User	Length	Language	Date
1	Johan Lyts	134	Python 2	2021-05-25 12:17:31
2	Andreas Björklund	135	Python 2	2021-05-21 06:44:06
3	Thomas Feld	156	Python 2	2021-05-21 08:30:43
4	Björn Magnusson	160	Python 2	2021-10-13 17:28:10
5	Olav Røthe Bakken	201	Python 2	2021-11-21 11:44:23
6	Sivasankaran D	213	Python 2	2025-07-30 15:54:47
7	Yanmarshus Bachtiar	276	Python 2	2021-05-29 04:40:59
8	Andrei Stoica	289	Python 2	2021-08-23 16:54:44
9	Gibransyah	351	Python 2	2021-11-03 13:15:21
10	Elisabeth Pongratz	381	Python 2	2022-12-21 16:44:53

#	User	Length	Language	Date
1	Lyndon Ho	74	Python 3	2023-07-25 20:54:32
2	Carl Pittenger	74	Python 3	2024-03-24 09:23:22
3	Clement Oh	80	Python 3	2023-05-22 19:39:20
4	Kevin Gomez	80	Python 3	2023-07-25 00:24:21
5	Tai Tze Kin	91	Python 3	2024-05-01 09:52:26
6	Evie Russ	94	Python 3	2022-11-15 13:52:39
7	Erik Heimdal	94	Python 3	2022-11-21 19:42:00
8	Quinn Flavel	94	Python 3	2023-10-29 01:45:35
9	Ben Zydney	94	Python 3	2023-10-29 02:36:06
10	Oliver Ruste Jahren	95	Python 3	2023-05-19 00:33:21

#	User	Length	Language	Date
1	Angus Gibson	499	Racket	2025-07-15 04:10:34

#	User	Length	Language	Date
1	Thomas Feld	51	Ruby	2023-01-02 14:40:03
2	dick move	56	Ruby	2022-11-14 21:39:42
3	Russell Ng	71	Ruby	2025-05-15 23:36:38
4	Alexander Bilde Pedersen	103	Ruby	2023-04-06 16:50:25
5	Patrick Elsen	139	Ruby	2022-09-09 14:11:07
6	Régis Hanol	144	Ruby	2022-01-04 16:26:21
7	Jonathan Ogden	166	Ruby	2021-05-25 23:50:54
8	Eugen Neagoe	174	Ruby	2023-04-20 23:30:43
9	Markus Mathiasen	185	Ruby	2022-01-10 20:47:07
10	Jack Scheffel	283	Ruby	2021-11-11 22:51:59

#	User	Length	Language	Date
1	Vincent Lagerros	223	Rust	2024-10-14 18:06:12
2	JOAO VITOR GUIMARAES COSTA	279	Rust	2022-12-20 23:52:35
3	Emil Dichmann	441	Rust	2025-08-16 11:45:30
4	Bas Dirks	513	Rust	2021-12-28 08:30:25
5	Aza Maulana Hadi	556	Rust	2024-03-11 16:26:21
6	Pankajkumar Patro	562	Rust	2024-07-01 23:39:33
7	David Rasch	577	Rust	2021-05-26 17:18:42
8	Freek van Keulen	599	Rust	2021-07-10 15:36:18
9	Emil Olin	600	Rust	2021-05-29 12:26:05
10	Kjartan Óli Ágústsson	603	Rust	2021-08-10 22:21:13

#	User	Length	Language	Date
1	Danial Haseeb	512	Swift	2023-10-08 10:06:40
2	Jonas Deichelmann	655	Swift	2023-10-04 23:31:49

#	User	Length	Language	Date
1	Jhony Andreas	532	Visual Basic	2023-07-05 12:38:00

#	User	Length	Language	Date
1	Joe Blower	1004	Zig	2025-05-28 23:34:36

Solution running time distribution