Problem F
A Classy Problem — Problem Statistics

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Submissions	21257
Accepted submissions	5242
Submission ratio	24.66%
Authors	4664
Accepted authors	3522
Author ratio	75.51%

#	User	Runtime	Language	Date
1	Martin Stensgård	0.01 s	C	2017-11-12 07:22:48
2	Bergur Snorrason	0.01 s	C	2018-03-06 10:20:43
3	Mattias Andrée	0.01 s	C	2018-05-02 21:47:30
4	Isaac Pashenkov	0.01 s	C	2020-08-20 03:16:44
5	Gustav Nelson Schneider	0.02 s	C	2016-09-12 13:25:26
6	Gustav Schneider	0.02 s	C	2016-09-12 13:26:40
7	Eyleifur Bjarkason	0.02 s	C	2019-03-25 22:54:46
8	Isaac Saffold	0.02 s	C	2019-11-27 15:04:42
9	Didrik Madheden	0.02 s	C	2021-01-20 03:57:38
10	Jack Rosenthal	0.03 s	C	2015-11-15 08:38:19

#	User	Runtime	Language	Date
1	Nicklas Brindstedt	0.10 s	C#	2018-04-03 23:53:46
2	Pontus Magnusson	0.12 s	C#	2024-03-21 14:11:51
3	Fredrik Wiström	0.14 s	C#	2018-03-27 22:44:06
4	Patrik Blomqvist	0.20 s	C#	2023-10-04 14:42:34
5	Andriy Zyevakov	0.20 s	C#	2025-02-03 06:25:37
6	Tom Ilestrand	0.23 s	C#	2019-04-15 14:11:03
7	Lucía María Alvarez Sánchez	0.23 s	C#	2023-04-17 04:24:55
8	Jesse Jenkins	0.23 s	C#	2023-08-24 04:27:03
9	Sano Gharzani	0.23 s	C#	2023-11-13 19:58:42
10	samvid mistry	0.23 s	C#	2024-12-27 07:14:37

#	User	Runtime	Language	Date
1	Lin Lee	0.01 s	C++	2016-07-20 06:40:50
2	Hidden user	0.01 s	C++	2018-04-18 16:29:26
3	Gabriel Demers	0.02 s	C++	2015-12-22 11:35:20
4	Gustav Schneider	0.02 s	C++	2016-09-12 14:21:03
5	Olle Eriksson	0.02 s	C++	2017-12-10 20:39:34
6	Oscar Sandström	0.02 s	C++	2019-05-17 04:38:23
7	Per Westermark	0.02 s	C++	2020-03-27 01:07:45
8	Tymoteusz Talik	0.02 s	C++	2024-11-03 11:20:45
9	CholRyong Jong	0.03 s	C++	2015-12-06 02:47:27
10	Kazi Ashik Islam	0.03 s	C++	2016-03-17 05:58:03

#	User	Runtime	Language	Date
1	Hidden user	0.42 s	Common Lisp	2019-06-25 19:50:24
2	David Cawthon	0.78 s	Common Lisp	2019-04-21 17:40:33

#	User	Runtime	Language	Date
1	Javier Gómez Díaz	0.20 s	Crystal	2024-07-27 16:11:49

#	User	Runtime	Language	Date
1	Thanh Dinh Ta	0.31 s	F#	2022-07-23 17:11:27
2	Jacob Harris Cryer Kragh	0.42 s	F#	2023-09-02 08:15:15

#	User	Runtime	Language	Date
1	Tolga Atam	0.04 s	Go	2024-10-26 06:44:37
2	Adam Engsig	0.07 s	Go	2023-05-11 11:06:47
3	Michael Laszlo	0.24 s	Go	2016-12-25 10:51:12
4	Norbert Voelker	0.24 s	Go	2022-10-15 17:11:08
5	Hidden user	0.25 s	Go	2024-10-05 02:17:10
6	Johannes Moberg	0.26 s	Go	2018-12-02 23:07:03
7	Krzysztof Gibuła	0.26 s	Go	2019-04-19 23:30:56
8	Iker Lissarrague	0.65 s	Go	2022-03-04 19:56:41
9	Daniel Johansson	0.75 s	Go	2019-08-11 23:41:49

#	User	Runtime	Language	Date
1	Tomas Möre	0.09 s	Haskell	2016-08-05 15:23:57
2	Isaac Arvestad	0.15 s	Haskell	2017-02-17 00:42:49
3	Wilfried van Asten	0.19 s	Haskell	2015-12-30 04:08:23
4	Hidden user	0.28 s	Haskell	2020-08-12 13:25:30
5	Lars Corbijn	0.38 s	Haskell	2015-12-19 20:45:45
6	Jørn Lode	0.62 s	Haskell	2020-10-05 23:10:51
7	Simon Marechal	0.66 s	Haskell	2016-10-26 14:31:59
8	Adam Vandolder	0.66 s	Haskell	2019-06-24 22:02:34
9	Aurélien Pepin	0.68 s	Haskell	2019-08-08 13:27:38
10	Hidden user	0.73 s	Haskell	2023-05-25 00:12:43

#	User	Runtime	Language	Date
1	Clement Oh	0.13 s	Java	2022-07-29 21:10:55
2	Soo Qi Xuan Ian	0.19 s	Java	2020-10-19 20:38:41
3	Asmus Tørsleff	0.20 s	Java	2022-01-17 13:45:28
4	Jeremias Nathanial Liew Yong Hui	0.33 s	Java	2019-11-24 16:23:35
5	Viet Anh Ho	0.39 s	Java	2017-03-26 18:30:03
6	Hidden user	0.40 s	Java	2021-09-21 11:48:27
7	Anders Petersen	0.40 s	Java	2021-09-26 13:54:36
8	Petr Ryšavý	0.41 s	Java	2015-11-22 03:59:33
9	Joakim Algrøy	0.42 s	Java	2018-11-15 13:26:46
10	Nick Wu	0.43 s	Java	2016-10-22 22:43:20

#	User	Runtime	Language	Date
1	jack	0.45 s	JavaScript (Node.js)	2024-12-31 01:05:49
2	Kenneth Chen	0.57 s	JavaScript (Node.js)	2022-06-30 05:31:08
3	Samuel Högfeldt	0.63 s	JavaScript (Node.js)	2022-07-10 14:45:07
4	Dmitrijs Balcers	0.93 s	JavaScript (Node.js)	2021-03-28 21:36:52
5	Karim Dridi	0.96 s	JavaScript (Node.js)	2022-01-14 01:11:35
6	Gert Lenaerts	1.15 s	JavaScript (Node.js)	2020-05-01 14:21:55
7	Stephanie Keck	1.17 s	JavaScript (Node.js)	2020-02-07 09:15:11
8	Hovhannes Kantuni	1.44 s	JavaScript (Node.js)	2021-03-11 22:48:53

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.17 s	JavaScript (SpiderMonkey)	2016-08-03 00:55:25
2	Stian Surén	0.19 s	JavaScript (SpiderMonkey)	2017-04-20 10:07:54
3	Christian Cederquist	0.21 s	JavaScript (SpiderMonkey)	2023-06-07 07:15:28
4	Knut Salomonsson	0.24 s	JavaScript (SpiderMonkey)	2016-11-01 15:24:33
5	Zeyad Osama	0.28 s	JavaScript (SpiderMonkey)	2024-01-22 04:55:45
6	Kārlis Gaņģis	0.45 s	JavaScript (SpiderMonkey)	2019-08-27 15:11:40
7	Peter Kedemo	0.48 s	JavaScript (SpiderMonkey)	2016-04-13 22:12:10
8	Djilani Kebaili	0.60 s	JavaScript (SpiderMonkey)	2018-09-23 07:15:45
9	J M	0.70 s	JavaScript (SpiderMonkey)	2016-10-07 22:01:43

#	User	Runtime	Language	Date
1	Timothy Gaede	1.19 s	Julia	2024-04-23 20:18:09

#	User	Runtime	Language	Date
1	Johnny Baloney	0.65 s	Kotlin	2022-01-03 22:55:35
2	Jacob Huebner	0.82 s	Kotlin	2020-02-26 03:34:40
3	Björn Holm	0.90 s	Kotlin	2019-04-29 16:03:35
4	Nicholas Johnson	0.90 s	Kotlin	2021-11-05 01:51:59
5	Hidden user	1.17 s	Kotlin	2020-04-11 20:02:08
6	Stephen Atwood	1.33 s	Kotlin	2024-05-16 19:55:41
7	Adam Rankin	1.45 s	Kotlin	2023-11-10 18:32:53
8	Adam Koprowski	1.47 s	Kotlin	2020-08-20 14:16:43
9	Sergey Jakobsen	1.72 s	Kotlin	2021-06-09 15:15:35
10	Adrian Wireklint	2.12 s	Kotlin	2021-12-31 15:21:15

#	User	Runtime	Language	Date
1	Hidden user	0.23 s	OCaml	2024-01-16 17:07:15
2	Evan Magill	0.27 s	OCaml	2023-10-01 05:51:29

#	User	Runtime	Language	Date
1	Borislav Anchev	0.14 s	PHP	2016-03-14 07:47:29
2	Jeff Cashion	0.15 s	PHP	2018-04-20 19:56:20
3	Connor Billings	0.16 s	PHP	2020-11-22 00:46:31

#	User	Runtime	Language	Date
1	Johannes Agestam	0.14 s	Python 2	2015-12-21 21:17:16
2	Caleb Clark	0.14 s	Python 2	2017-02-27 09:39:55
3	Agis Daniels	0.14 s	Python 2	2020-05-15 00:54:45
4	Manshant Singh Kohli	0.15 s	Python 2	2015-12-06 00:31:32
5	Martin Jackson	0.15 s	Python 2	2016-08-09 19:37:00
6	Frederik Højholt	0.15 s	Python 2	2016-12-13 18:00:21
7	Adriaan de Vries	0.15 s	Python 2	2017-02-16 21:59:26
8	Urban Pettersson	0.16 s	Python 2	2015-11-29 12:49:40
9	Trevor Masters	0.16 s	Python 2	2015-11-30 20:42:28
10	Ailo Aasen	0.16 s	Python 2	2015-12-26 14:15:51

#	User	Runtime	Language	Date
1	Karl Schärlund	0.14 s	Python 3	2018-03-29 10:41:14
2	Fred Bloggs	0.15 s	Python 3	2019-04-05 11:03:02
3	Hyaline Seiche	0.16 s	Python 3	2017-05-13 19:09:45
4	Ryan Farrell	0.17 s	Python 3	2022-07-07 05:44:21
5	Christian Komusiewicz	0.17 s	Python 3	2024-10-29 22:27:41
6	Mark Meysenburg	0.17 s	Python 3	2025-03-05 17:10:46
7	Vincent Tandya	0.18 s	Python 3	2018-12-16 11:22:45
8	Ryan Chew	0.18 s	Python 3	2019-01-04 19:15:09
9	Ryan Strauss	0.18 s	Python 3	2019-01-10 22:38:37
10	Glenn Bruns	0.18 s	Python 3	2019-03-10 00:43:01

#	User	Runtime	Language	Date
1	Lee Tze Han	0.37 s	Ruby	2018-06-18 18:49:42
2	Loke Gustafsson	0.42 s	Ruby	2021-02-24 13:28:40
3	Hidden user	0.45 s	Ruby	2019-02-16 23:14:44
4	Thomas Feld	0.48 s	Ruby	2023-05-04 15:12:17
5	Odin Hufnagl	0.54 s	Ruby	2024-02-06 19:26:34
6	Mohamed Elalem	0.61 s	Ruby	2021-01-09 16:58:42
7	Djilani Kebaili	0.67 s	Ruby	2018-09-23 19:23:36
8	Casper Christensen	0.87 s	Ruby	2016-03-10 21:44:06

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Rust	2022-02-19 01:23:50
2	Vincent Lagerros	0.02 s	Rust	2024-06-01 15:23:40
3	Bas Dirks	0.04 s	Rust	2025-02-19 21:12:16
4	Mathias Svensson	0.08 s	Rust	2020-04-08 12:51:12
5	Christofer Nolander	0.09 s	Rust	2018-11-28 19:00:05
6	Pahlevi Fikri Auliya	0.09 s	Rust	2020-10-27 00:10:24
7	David Rasch	0.10 s	Rust	2021-05-11 17:18:29
8	Daniel Anker Hermansen	0.10 s	Rust	2023-05-28 09:21:56
9	Mattias Davidsson	0.10 s	Rust	2023-09-30 21:20:32
10	Lasse Grosbøl-Rais	0.11 s	Rust	2023-09-28 14:28:52

#	User	Runtime	Language	Date
1	Javier Gómez Díaz	0.01 s	Zig	2024-07-27 17:14:58

#	User	Length	Language	Date
1	Thibault Raffaillac	834	C	2017-04-24 18:41:19
2	Jack Rosenthal	1162	C	2015-11-15 08:38:19
3	Isaac Pashenkov	1173	C	2023-06-04 06:29:31
4	Mattias Andrée	1230	C	2018-05-02 20:55:21
5	Martin Stensgård	1519	C	2017-11-12 03:36:25
6	sicupu	1677	C	2020-11-22 09:48:19
7	Bochuan Lu	1726	C	2017-04-27 23:12:19
8	Gustav Schneider	1730	C	2016-09-12 14:21:26
9	Sushma Kommineni	1787	C	2020-07-29 04:55:38
10	Matthew Ling	1821	C	2018-01-08 04:29:10

#	User	Length	Language	Date
1	Björn Gunnarsson	1394	C#	2016-09-18 17:22:29
2	Þorgeir Auðunn Karlsson	1394	C#	2016-09-18 17:26:45
3	Marek Bina	1445	C#	2019-02-16 17:39:48
4	Liam Percy	1605	C#	2019-01-11 20:20:51
5	Marius Løkketangen	1990	C#	2017-04-19 17:09:50
6	Benjamin Bilbeau	2159	C#	2019-12-11 20:13:14
7	Hallvard Braaten	2178	C#	2017-04-19 17:01:47
8	Lucía María Alvarez Sánchez	2231	C#	2023-04-17 04:24:55
9	Jens Mellberg	2231	C#	2023-12-26 16:23:32
10	Mikael Dahlström	2231	C#	2022-11-24 07:45:06

#	User	Length	Language	Date
1	David Narum	654	C++	2018-09-04 16:14:05
2	Hyunjun Lee	756	C++	2022-10-27 09:28:01
3	Johan Wind	767	C++	2015-11-26 14:35:19
4	Dongjian Tang	784	C++	2017-05-19 01:18:39
5	William Gan	790	C++	2017-01-18 16:16:43
6	Lav Radosavljevic	798	C++	2018-07-26 18:12:50
7	Hidden user	810	C++	2017-10-20 12:05:02
8	Ragur Krishnan	817	C++	2018-08-03 18:08:57
9	Birk Tjelmeland	822	C++	2017-11-07 15:49:36
10	Manshant Singh Kohli	826	C++	2017-02-18 23:17:47

#	User	Length	Language	Date
1	Hidden user	1294	Common Lisp	2019-06-25 19:25:34
2	David Cawthon	2498	Common Lisp	2019-04-21 17:40:33

#	User	Length	Language	Date
1	Javier Gómez Díaz	646	Crystal	2024-07-27 16:11:49

#	User	Length	Language	Date
1	Thanh Dinh Ta	1357	F#	2022-07-23 17:12:23
2	Jacob Harris Cryer Kragh	2106	F#	2023-09-02 08:15:15

#	User	Length	Language	Date
1	Iker Lissarrague	1135	Go	2022-03-04 20:30:22
2	Daniel Johansson	1444	Go	2019-08-11 23:41:49
3	Norbert Voelker	1447	Go	2022-10-15 17:11:08
4	Johannes Moberg	1519	Go	2018-12-03 14:35:41
5	Krzysztof Gibuła	1681	Go	2019-04-19 23:30:56
6	Michael Laszlo	1811	Go	2016-12-25 11:00:00
7	Hidden user	1879	Go	2024-10-05 02:17:10
8	Tolga Atam	2490	Go	2024-10-26 06:00:31
9	Adam Engsig	4995	Go	2021-07-03 22:46:08

#	User	Length	Language	Date
1	Anthony Clark	710	Haskell	2017-03-04 02:47:06
2	Paul Wild	748	Haskell	2018-05-01 06:43:18
3	Alberto Cerezo Cid	845	Haskell	2017-03-08 22:45:58
4	Hidden user	871	Haskell	2023-05-25 00:12:43
5	Hidden user	1064	Haskell	2020-08-12 13:25:30
6	Antony Lee	1074	Haskell	2016-12-31 01:28:31
7	Andrew Mark Allen	1112	Haskell	2017-03-09 22:55:48
8	Lim Ming Yean	1137	Haskell	2019-03-29 12:30:27
9	Haobo Jiang	1254	Haskell	2016-09-30 15:18:39
10	姚锦铭	1258	Haskell	2016-09-30 17:29:15

#	User	Length	Language	Date
1	Padjie	618	Java	2022-04-19 20:48:22
2	Kiên Nguyễn Tiến Trung	926	Java	2017-01-21 21:37:35
3	Erlandas Miezys	1161	Java	2017-08-02 18:36:31
4	Qianlang Chen	1198	Java	2020-09-22 05:36:59
5	Hidden user	1236	Java	2016-08-18 09:21:31
6	Benjamin Laurence Erickson	1248	Java	2016-10-27 01:47:21
7	Mitch Price	1265	Java	2016-12-20 06:15:01
8	Joshua Alman	1273	Java	2016-10-22 20:27:50
9	Hidden user	1277	Java	2022-05-01 09:12:27
10	Hidden user	1281	Java	2022-02-24 18:53:47

#	User	Length	Language	Date
1	Karim Dridi	1051	JavaScript (Node.js)	2022-01-14 01:11:35
2	Hovhannes Kantuni	1703	JavaScript (Node.js)	2021-03-11 22:48:53
3	Kenneth Chen	1704	JavaScript (Node.js)	2022-06-30 05:31:08
4	Gert Lenaerts	1970	JavaScript (Node.js)	2020-05-01 14:21:55
5	Samuel Högfeldt	2042	JavaScript (Node.js)	2022-07-10 14:45:07
6	jack	2229	JavaScript (Node.js)	2024-12-31 01:05:49
7	Dmitrijs Balcers	2283	JavaScript (Node.js)	2021-03-28 21:36:52
8	Stephanie Keck	15235	JavaScript (Node.js)	2020-02-07 09:15:11

#	User	Length	Language	Date
1	Kārlis Gaņģis	441	JavaScript (SpiderMonkey)	2019-08-27 15:11:40
2	Bjørn Chr. Soltvedt	627	JavaScript (SpiderMonkey)	2016-08-03 00:55:25
3	Peter Kedemo	692	JavaScript (SpiderMonkey)	2016-04-13 22:12:10
4	Christian Cederquist	762	JavaScript (SpiderMonkey)	2023-06-07 07:15:28
5	Knut Salomonsson	1035	JavaScript (SpiderMonkey)	2016-11-01 15:24:33
6	Zeyad Osama	1051	JavaScript (SpiderMonkey)	2024-01-22 04:55:45
7	Djilani Kebaili	1185	JavaScript (SpiderMonkey)	2018-09-23 06:44:18
8	J M	1213	JavaScript (SpiderMonkey)	2016-10-07 22:01:43
9	Stian Surén	1274	JavaScript (SpiderMonkey)	2017-04-20 10:07:54

#	User	Length	Language	Date
1	Timothy Gaede	1396	Julia	2024-04-23 20:18:09

#	User	Length	Language	Date
1	Sergey Jakobsen	741	Kotlin	2021-06-09 15:15:35
2	Adam Koprowski	1047	Kotlin	2020-08-20 14:16:43
3	Stephen Atwood	1099	Kotlin	2024-05-16 19:55:41
4	Adrian Wireklint	1109	Kotlin	2021-12-31 15:21:15
5	Adam Rankin	1319	Kotlin	2023-11-10 18:32:53
6	Jacob Huebner	1591	Kotlin	2020-02-26 03:34:40
7	Johnny Baloney	1663	Kotlin	2022-01-03 22:48:44
8	Hidden user	2211	Kotlin	2020-04-11 20:02:08
9	Björn Holm	2319	Kotlin	2019-04-29 15:52:00
10	Nicholas Johnson	2944	Kotlin	2021-11-05 01:51:59

#	User	Length	Language	Date
1	Hidden user	1311	OCaml	2024-01-16 17:07:15
2	Evan Magill	1508	OCaml	2023-10-01 05:51:29

#	User	Length	Language	Date
1	Borislav Anchev	989	PHP	2016-03-14 07:47:29
2	Connor Billings	1388	PHP	2020-11-22 00:46:31
3	Jeff Cashion	1730	PHP	2018-04-20 19:56:20

#	User	Length	Language	Date
1	Thomas Feld	322	Python 2	2019-08-21 15:15:44
2	Johannes Agestam	334	Python 2	2015-12-21 20:57:22
3	Justin Su	341	Python 2	2019-10-02 00:14:46
4	Nico Weber	393	Python 2	2016-11-16 22:46:04
5	Daniel Strizhevsky	397	Python 2	2016-10-22 20:09:23
6	Jeff Robertson	399	Python 2	2017-04-16 03:39:42
7	Lim Hong Hui Eugene	400	Python 2	2016-08-07 04:29:01
8	Fan Jiang	413	Python 2	2018-09-27 23:24:51
9	Maryam Miri	414	Python 2	2017-03-09 08:12:03
10	Edward Sikorski	417	Python 2	2016-05-22 10:23:03

#	User	Length	Language	Date
1	Erik Åman	193	Python 3	2023-12-08 20:52:13
2	Gustav Elmqvist	199	Python 3	2023-03-28 00:01:39
3	Sander Oppen	201	Python 3	2024-08-20 15:50:29
4	Kaaden RumanCam	211	Python 3	2023-04-27 06:10:52
5	Edvard Walde Heimdal	213	Python 3	2024-08-20 15:43:58
6	Michael Goldwasser	214	Python 3	2024-09-13 06:58:00
7	Kevin Gomez	228	Python 3	2023-08-28 06:55:42
8	Ahmed Chamseddine	237	Python 3	2023-10-23 11:50:29
9	Patrick Jung	243	Python 3	2022-11-05 04:09:20
10	Lee Isaac	261	Python 3	2023-05-27 20:28:41

#	User	Length	Language	Date
1	Thomas Feld	130	Ruby	2023-05-04 15:12:17
2	Hidden user	602	Ruby	2019-02-16 23:14:44
3	Casper Christensen	652	Ruby	2016-03-18 18:06:50
4	Mohamed Elalem	712	Ruby	2021-01-09 16:58:42
5	Lee Tze Han	771	Ruby	2018-06-18 18:49:42
6	Loke Gustafsson	820	Ruby	2021-02-24 13:28:40
7	Djilani Kebaili	893	Ruby	2018-09-23 19:23:36
8	Odin Hufnagl	2549	Ruby	2024-02-06 19:26:34

#	User	Length	Language	Date
1	Bas Dirks	1444	Rust	2022-01-10 21:56:08
2	Mathias Svensson	1501	Rust	2020-04-08 12:51:12
3	David Rasch	1825	Rust	2021-05-11 17:18:29
4	Simon Hallefält	1938	Rust	2023-07-13 15:14:22
5	Hidden user	2111	Rust	2022-02-19 05:15:54
6	Ritwin Narra	2302	Rust	2021-06-18 05:22:25
7	Nikita Chudakov	2304	Rust	2024-01-25 00:45:37
8	Lasse Grosbøl-Rais	2537	Rust	2023-09-28 14:28:52
9	Mattias Davidsson	2578	Rust	2023-09-30 21:20:32
10	Vincent Lagerros	2589	Rust	2024-04-20 18:11:22

#	User	Length	Language	Date
1	Javier Gómez Díaz	2403	Zig	2024-07-27 17:14:58

Solution running time distribution