Problem A
Functional Fun — Problem Statistics

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Submissions	2180
Accepted submissions	965
Submission ratio	44.27%
Authors	834
Full solves [?]	778
Full solve Ratio	93.29%

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	C	2017-05-10 03:54:45
2	Juan Gutierrez	0.00 s	C	2019-10-06 08:24:23
3	Mikael K Eriksson	0.00 s	C	2021-01-30 10:20:31
4	PhilCampbell	0.00 s	C	2021-02-10 17:01:02

#	User	Runtime	Language	Date
1	Jeroen Bransen	0.02 s	C#	2015-12-11 15:06:26
2	Andrzej Krajniak	0.02 s	C#	2017-08-23 17:47:37
3	Bartosz Starczewski	0.02 s	C#	2018-02-14 20:08:13
4	Bartosz Starczewski	0.02 s	C#	2018-02-14 20:20:09
5	Gurpartap Singh Bhatti	0.02 s	C#	2019-06-28 06:42:22
6	Thomas Norris	0.02 s	C#	2019-10-17 21:19:47
7	Mikael Fiala-Lundström	0.03 s	C#	2021-05-19 23:47:52

#	User	Runtime	Language	Date
1	David Cawthon	0.03 s	Common Lisp	2019-05-12 17:40:53

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05 s	F#	2022-10-01 13:13:53

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2021-05-01 23:47:54

#	User	Runtime	Language	Date
1	David Wärn	0.00 s	Haskell	2015-06-04 23:18:57
2	Jan Hlavacek	0.00 s	Haskell	2017-01-24 08:02:30
3	Eduardo Paluzo	0.00 s	Haskell	2017-03-09 10:12:40
4	Abel Martin	0.00 s	Haskell	2017-03-11 19:25:29
5	Dominic Shillingford	0.00 s	Haskell	2018-02-11 23:07:23
6	Håkon Flatval	0.00 s	Haskell	2018-09-04 01:13:52
7	Li Jun	0.00 s	Haskell	2023-07-07 12:17:49
8	Matthew Gvasalia	0.00 s	Haskell	2023-08-19 21:36:52
9	Brent Yorgey	0.01 s	Haskell	2017-11-22 23:32:17
10	Luis Proenza Morgado	0.01 s	Haskell	2019-01-20 11:56:03

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.06 s	Java	2016-10-11 22:50:27
2	Jamie Kihira	0.06 s	Java	2018-02-28 04:24:35
3	Hidden user	0.06 s	Java	2018-03-03 07:26:51
4	Sven Rönnbäck	0.06 s	Java	2024-04-06 17:43:39
5	Thanh Nhan Nguyen	0.06 s	Java	2024-11-03 22:38:18
6	Toan Tran Ngoc Anh	0.06 s	Java	2024-11-04 11:49:09
7	Issa Issack	0.06 s	Java	2025-02-14 22:02:08
8	Michel Langeveld	0.07 s	Java	2015-12-12 09:51:16
9	Mehdi Maick	0.07 s	Java	2016-08-05 02:17:22
10	James Black	0.07 s	Java	2016-10-17 04:12:18

#	User	Runtime	Language	Date
1	Quinn Flavel	0.41 s	JavaScript (Node.js)	2020-09-30 00:24:47
2	Chris Wong	0.42 s	JavaScript (Node.js)	2022-01-14 18:33:52
3	Niamh Limerick	0.42 s	JavaScript (Node.js)	2022-03-03 01:44:19
4	Andoko Chandra	0.43 s	JavaScript (Node.js)	2020-10-20 14:41:33

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-02-06 23:49:07
2	Michael Laszlo	0.01 s	JavaScript (SpiderMonkey)	2016-10-05 19:10:05
3	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-10-30 19:54:08
4	Ionel Hindorean	0.01 s	JavaScript (SpiderMonkey)	2017-07-19 22:35:54
5	Hidden user	0.03 s	JavaScript (SpiderMonkey)	2021-01-22 17:30:46
6	Peter Menyes	0.03 s	JavaScript (SpiderMonkey)	2021-09-18 20:45:33
7	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-01-17 21:56:39
8	Zach Tschetter	0.03 s	JavaScript (SpiderMonkey)	2023-06-24 06:06:22
9	Jimmy Gustafsson	0.03 s	JavaScript (SpiderMonkey)	2024-08-14 15:29:53

#	User	Runtime	Language	Date
1	Timothy Gaede	0.64 s	Julia	2024-06-17 20:38:36

#	User	Runtime	Language	Date
1	Ashish Singh	0.14 s	Kotlin	2023-02-02 14:04:43
2	Johnny Baloney	0.16 s	Kotlin	2021-12-22 18:20:41
3	Przemysław Curzytek	0.20 s	Kotlin	2018-02-11 00:47:39
4	Neil Harmon	0.20 s	Kotlin	2019-05-16 09:00:33
5	Phường Lên	0.21 s	Kotlin	2020-04-12 09:42:46
6	Adam Rankin	0.22 s	Kotlin	2023-05-10 03:15:49
7	Hidden user	0.26 s	Kotlin	2017-12-08 02:48:45
8	Troy Warmboe	0.29 s	Kotlin	2020-02-12 00:52:40

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.03 s	Prolog	2016-11-01 22:24:31

#	User	Runtime	Language	Date
1	Patrik Lilja	0.03 s	Python 2	2015-04-07 17:32:54
2	Christofer Ohlsson	0.03 s	Python 2	2015-07-31 10:25:29
3	Arne Tobias Malkenes Ødegaard	0.03 s	Python 2	2015-10-08 18:52:15
4	Lars Tveito	0.03 s	Python 2	2015-10-09 00:02:29
5	Tore Norderud	0.03 s	Python 2	2015-10-29 23:22:37
6	Hidden user	0.03 s	Python 2	2016-01-03 20:02:29
7	Karoliina Oksanen	0.03 s	Python 2	2016-03-18 21:13:26
8	Martin Jackson	0.03 s	Python 2	2016-07-31 17:03:40
9	Jason Shi	0.03 s	Python 2	2016-10-21 20:35:20
10	Hermon Mulat	0.03 s	Python 2	2016-11-08 16:14:00

#	User	Runtime	Language	Date
1	Connor Austin	0.02 s	Python 3	2016-03-21 17:48:21
2	Hidden user	0.02 s	Python 3	2016-08-21 14:34:28
3	Benjamin Edelman	0.02 s	Python 3	2016-10-21 20:30:58
4	Brandon Ibbotson	0.02 s	Python 3	2017-03-07 10:06:30
5	Shiro Omi	0.02 s	Python 3	2017-03-16 03:20:22
6	Cian Ruane	0.02 s	Python 3	2017-04-04 14:13:18
7	Noah Ó Donnaile	0.02 s	Python 3	2017-04-07 02:14:16
8	Kristiyan Balabanov	0.02 s	Python 3	2017-05-15 23:26:35
9	Jón Steinn Elíasson	0.02 s	Python 3	2017-06-02 19:29:39
10	Ciara Godwin	0.02 s	Python 3	2017-06-04 17:12:32

#	User	Runtime	Language	Date
1	Foo Bar	0.05 s	Ruby	2018-10-24 18:57:12
2	Kok Dith	0.05 s	Ruby	2021-08-23 03:51:38

#	User	Runtime	Language	Date
1	Freek van Keulen	0.00 s	Rust	2021-12-22 19:28:40
2	Bas Dirks	0.00 s	Rust	2022-01-06 00:08:49
3	Garrett Rowe	0.00 s	Rust	2022-06-11 21:41:20
4	Giang Đào	0.00 s	Rust	2023-01-01 04:24:15

#	User	Length	Language	Date
1	PhilCampbell	2987	C	2021-02-10 17:01:02
2	Hidden user	3308	C	2017-05-10 03:54:45
3	Mikael K Eriksson	4173	C	2021-01-30 10:20:31
4	Juan Gutierrez	5164	C	2019-10-06 08:24:23

#	User	Length	Language	Date
1	Jeroen Bransen	1229	C#	2015-12-11 15:06:26
2	Thomas Norris	2159	C#	2019-10-17 21:19:47
3	Gurpartap Singh Bhatti	2775	C#	2019-06-28 06:46:18
4	Bartosz Starczewski	4118	C#	2018-02-14 20:20:09
5	Bartosz Starczewski	4466	C#	2018-02-14 20:08:13
6	Mikael Fiala-Lundström	4959	C#	2021-05-19 23:47:52
7	Andrzej Krajniak	5730	C#	2017-08-23 17:47:37

#	User	Length	Language	Date
1	Herman Karlsson	775	C++	2015-09-16 14:45:25
2	Alexander Skidanov	860	C++	2024-11-04 21:56:21
3	Mugeon Kim	885	C++	2024-02-16 05:54:40
4	William Gan	943	C++	2018-03-09 10:40:51
5	Hyunjun Lee	944	C++	2022-10-21 15:50:19
6	Roger Chen	947	C++	2021-07-06 04:10:45
7	Ruben Van Dijck	1036	C++	2018-10-17 15:15:17
8	Markus Mathiasen	1048	C++	2021-08-15 21:22:48
9	Johan Sannemo	1053	C++	2016-10-26 15:41:35
10	Ethan Guo	1060	C++	2019-09-03 16:58:06

#	User	Length	Language	Date
1	David Cawthon	1718	Common Lisp	2019-05-12 17:40:53

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	2456	F#	2022-10-01 13:13:53

#	User	Length	Language	Date
1	Norbert Voelker	1395	Go	2021-05-02 00:01:45

#	User	Length	Language	Date
1	Li Jun	809	Haskell	2023-07-07 12:21:26
2	Håkon Flatval	834	Haskell	2018-09-04 01:13:52
3	David Wärn	916	Haskell	2015-06-04 23:18:57
4	Jan Hrček	1219	Haskell	2021-03-12 11:37:58
5	Francisco Javier Hidalgo Zamora	1571	Haskell	2019-01-20 12:30:21
6	Matthew Gvasalia	1610	Haskell	2023-08-19 21:36:52
7	Jan Hlavacek	1715	Haskell	2017-01-24 08:02:30
8	Gaston Gilbert	1800	Haskell	2020-10-27 22:56:20
9	Brent Yorgey	1842	Haskell	2017-11-22 23:32:17
10	Luis Proenza Morgado	1903	Haskell	2019-01-20 11:56:03

#	User	Length	Language	Date
1	Natalie Longtin	1010	Java	2018-01-22 21:29:01
2	Kyar Nyo Aye	1205	Java	2018-04-27 18:25:53
3	Dawson Thompson	1241	Java	2018-03-13 19:28:29
4	Samuel D'Aprea	1265	Java	2019-05-07 12:05:48
5	Paul Boddington	1267	Java	2016-04-20 20:31:57
6	Chia Bob	1303	Java	2018-03-04 02:48:12
7	Douglas Shu	1305	Java	2017-11-07 03:19:11
8	Noble Bi	1305	Java	2022-07-21 20:09:45
9	Pedro Contipelli	1320	Java	2016-12-13 14:09:41
10	Hidden user	1348	Java	2018-03-08 07:18:18

#	User	Length	Language	Date
1	Quinn Flavel	1127	JavaScript (Node.js)	2020-09-30 00:24:47
2	Niamh Limerick	1805	JavaScript (Node.js)	2022-03-03 01:44:19
3	Chris Wong	1880	JavaScript (Node.js)	2022-01-14 18:33:52
4	Andoko Chandra	2068	JavaScript (Node.js)	2020-10-20 14:41:33

#	User	Length	Language	Date
1	Jimmy Gustafsson	649	JavaScript (SpiderMonkey)	2024-08-14 15:29:53
2	Christian Pilegaard Cederquist	917	JavaScript (SpiderMonkey)	2023-01-17 21:56:39
3	Peter Kedemo	922	JavaScript (SpiderMonkey)	2016-02-06 23:49:07
4	Bjørn Chr. Soltvedt	1050	JavaScript (SpiderMonkey)	2016-10-30 19:54:08
5	Peter Menyes	1283	JavaScript (SpiderMonkey)	2021-09-18 20:45:33
6	Zach Tschetter	1300	JavaScript (SpiderMonkey)	2023-06-24 06:06:22
7	Michael Laszlo	1615	JavaScript (SpiderMonkey)	2016-10-05 19:10:05
8	Hidden user	1838	JavaScript (SpiderMonkey)	2021-01-22 17:30:46
9	Ionel Hindorean	2105	JavaScript (SpiderMonkey)	2017-07-19 22:38:42

#	User	Length	Language	Date
1	Timothy Gaede	2154	Julia	2024-06-17 20:38:36

#	User	Length	Language	Date
1	Phường Lên	1469	Kotlin	2020-04-12 09:42:46
2	Johnny Baloney	1500	Kotlin	2021-12-22 18:20:41
3	Troy Warmboe	1525	Kotlin	2020-02-12 00:52:40
4	Hidden user	1533	Kotlin	2017-12-08 02:48:45
5	Adam Rankin	1555	Kotlin	2023-05-10 03:15:49
6	Ashish Singh	2010	Kotlin	2023-02-02 14:04:43
7	Neil Harmon	2153	Kotlin	2019-05-16 09:00:33
8	Przemysław Curzytek	3169	Kotlin	2018-02-11 00:47:39

#	User	Length	Language	Date
1	Andriy Zyevakov	1097	Prolog	2016-11-01 22:24:31

#	User	Length	Language	Date
1	Thomas Feld	420	Python 2	2019-09-10 11:01:12
2	Arne Tobias Malkenes Ødegaard	561	Python 2	2015-10-08 18:52:15
3	Johann Ly	691	Python 2	2018-07-09 04:13:17
4	Sigurður Jens Albertsson	769	Python 2	2020-06-07 19:37:15
5	Jesper Öqvist	786	Python 2	2018-10-24 22:45:48
6	Johan Lyts	826	Python 2	2019-12-18 21:50:14
7	Lars Tveito	927	Python 2	2015-10-09 00:02:29
8	Catalin Popa	932	Python 2	2018-11-27 17:40:40
9	Lim Hong Hui Eugene	933	Python 2	2019-05-02 05:26:15
10	Muzakhir Amanzholov	1005	Python 2	2017-04-10 20:58:57

#	User	Length	Language	Date
1	Neo Wei Jun Samuel	367	Python 3	2024-07-16 15:38:34
2	Lukas Kerren	368	Python 3	2024-03-20 20:07:48
3	Ahmed Chamseddine	372	Python 3	2024-08-12 13:48:42
4	Jayson B	404	Python 3	2023-03-25 00:06:25
5	Thomas Vu	436	Python 3	2019-02-14 17:42:11
6	Hidden user	484	Python 3	2016-08-21 14:34:28
7	Kenneth Jensen	507	Python 3	2022-07-06 16:58:14
8	Oliver Ruste Jahren	511	Python 3	2023-06-28 15:53:05
9	Thibault Raffaillac	519	Python 3	2020-01-22 13:19:24
10	Vedran Čačić	556	Python 3	2019-03-07 05:12:07

#	User	Length	Language	Date
1	Kok Dith	864	Ruby	2021-08-23 03:51:38
2	Foo Bar	908	Ruby	2018-10-24 18:57:12

#	User	Length	Language	Date
1	Bas Dirks	1819	Rust	2022-01-06 00:08:49
2	Freek van Keulen	1910	Rust	2021-12-22 19:28:40
3	Garrett Rowe	5507	Rust	2022-06-11 21:41:20
4	Giang Đào	7543	Rust	2023-01-01 04:24:15

Solution running time distribution