Problem F
Book Club — Problem Statistics

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Submissions	3627
Accepted submissions	1106
Submission ratio	30.49%
Authors	882
Full solves [?]	706
Full solve Ratio	80.05%

#	User	Runtime	Language	Date
1	Jesper Öqvist	0.01 s	C	2018-09-17 14:32:06
2	Pedro Vinícius Ferreira Baptista	0.04 s	C	2018-06-24 22:08:06
3	Ivan Petrov	0.10 s	C	2019-05-29 07:33:13

#	User	Runtime	Language	Date
1	Neal Zane	0.00 s	C++	2015-12-20 20:50:36
2	Diogen Babuc	0.00 s	C++	2022-08-26 13:41:21
3	Luca Seritan	0.00 s	C++	2022-10-29 07:14:17
4	[UPB] Giocanul	0.00 s	C++	2022-10-29 07:31:41
5	Andrei Cotor	0.00 s	C++	2022-10-29 08:31:51
6	Catalin Vanciu	0.00 s	C++	2022-10-29 08:39:16
7	Călugăr Tudor-Mihai	0.00 s	C++	2022-10-29 11:53:08
8	Denil Bouafia	0.00 s	C++	2024-10-04 14:16:42
9	David Choi	0.01 s	C++	2015-10-25 17:35:52
10	Howard Cheng	0.01 s	C++	2015-10-25 21:33:53

#	User	Runtime	Language	Date
1	Zach Tschetter	0.12 s	Haskell	2021-12-06 16:19:01

#	User	Runtime	Language	Date
1	José Vander Meulen	0.09 s	Java	2018-06-05 21:36:38
2	Mehdi Maick	0.10 s	Java	2017-10-28 02:32:39
3	John Kevin Tjahjadi	0.11 s	Java	2016-03-15 11:57:59
4	Samuel Klingström	0.14 s	Java	2018-12-04 13:00:36
5	Bjørn Dons	0.14 s	Java	2023-04-18 19:23:36
6	Michel Langeveld	0.15 s	Java	2016-12-04 22:13:40
7	Jakob Kallestad	0.15 s	Java	2019-04-03 17:55:21
8	Duncan Page	0.15 s	Java	2020-01-07 00:09:42
9	Louie Tan Yi Jie	0.16 s	Java	2018-10-17 05:03:58
10	Benjamin Reidys	0.16 s	Java	2018-11-21 19:34:44

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.20 s	JavaScript (SpiderMonkey)	2023-08-17 15:04:51

#	User	Runtime	Language	Date
1	Jacob Huebner	0.42 s	Kotlin	2023-05-11 11:01:52
2	Johan Wind	0.54 s	Kotlin	2025-06-21 22:00:31
3	Phường Lên	0.55 s	Kotlin	2020-05-28 00:23:02
4	Sam Keyser	0.55 s	Kotlin	2023-05-07 19:42:46
5	Aksel Holbek Sørbye	0.80 s	Kotlin	2025-06-21 22:59:24

#	User	Runtime	Language	Date
1	James Lawson	0.11 s	Python 2	2019-03-03 15:58:25
2	Harry Smidt	0.11 s	Python 2	2019-10-15 20:05:28
3	Anton Lyxell	0.14 s	Python 2	2019-11-18 21:37:06
4	Ram Basnet	0.47 s	Python 2	2019-11-29 23:07:27
5	Jesper Öqvist	0.48 s	Python 2	2018-09-17 13:56:59

#	User	Runtime	Language	Date
1	Harry Smidt	0.08 s	Python 3	2019-10-15 20:05:10
2	Ahmed Abdul-Rafay	0.08 s	Python 3	2025-12-06 10:48:01
3	Issa Issack	0.09 s	Python 3	2025-07-24 19:33:05
4	Eric Lee	0.09 s	Python 3	2025-10-24 18:43:50
5	Jim Wang	0.09 s	Python 3	2025-11-01 06:15:35
6	Ruizhe Jiang	0.09 s	Python 3	2025-11-01 06:21:56
7	Ayub Ali	0.09 s	Python 3	2025-12-03 23:08:19
8	Syrus Muhammed	0.09 s	Python 3	2025-12-06 00:21:19
9	Zayd Biberdorf	0.09 s	Python 3	2025-12-08 21:43:14
10	Nandan Ramesh	0.10 s	Python 3	2023-12-06 07:03:42

#	User	Runtime	Language	Date
1	Akemi Izuko	0.01 s	Rust	2022-11-01 01:00:35
2	Bas Dirks	0.01 s	Rust	2024-02-20 07:35:59

#	User	Length	Language	Date
1	Ivan Petrov	1180	C	2019-05-29 07:33:13
2	Jesper Öqvist	1617	C	2018-09-17 14:32:06
3	Pedro Vinícius Ferreira Baptista	1825	C	2018-06-24 22:18:10

#	User	Length	Language	Date
1	Mathias Gernez	449	C++	2023-09-14 00:13:09
2	Elias Lolck	575	C++	2021-05-29 11:47:54
3	Johan Wind	590	C++	2018-11-08 00:12:51
4	Hidden user	606	C++	2024-10-14 17:00:31
5	Hidden user	609	C++	2025-01-15 15:03:44
6	Hidden user	613	C++	2018-05-25 20:12:48
7	Ivan Carvalho	632	C++	2018-05-25 20:13:06
8	Govind Venugopalan	636	C++	2017-03-08 19:09:46
9	Ernest Ng Zi Xuan	636	C++	2024-05-26 05:21:57
10	Si Jun Ke	658	C++	2016-03-16 01:31:32

#	User	Length	Language	Date
1	Zach Tschetter	1813	Haskell	2021-12-06 16:30:20

#	User	Length	Language	Date
1	Jiru Xu	968	Java	2016-10-26 02:49:27
2	Hidden user	1192	Java	2024-05-15 15:51:05
3	Doug Goodman	1281	Java	2021-11-22 20:35:07
4	FermatingCode	1373	Java	2025-04-03 14:50:22
5	John Kevin Tjahjadi	1416	Java	2016-04-13 05:58:15
6	Sithanathan Rahul	1452	Java	2023-11-14 14:26:34
7	Joshua Tan Yin Feng	1461	Java	2020-05-01 15:24:26
8	Noah Goldsmid	1580	Java	2016-10-28 00:27:43
9	Brian Chalfant	1640	Java	2020-11-20 02:23:10
10	Aniruddh Sriram	1665	Java	2021-02-27 02:25:53

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	8901	JavaScript (SpiderMonkey)	2023-08-17 15:04:51

#	User	Length	Language	Date
1	Phường Lên	1741	Kotlin	2020-05-28 00:23:02
2	Jacob Huebner	2908	Kotlin	2023-05-11 20:48:40
3	Sam Keyser	3069	Kotlin	2023-05-07 19:42:46
4	Johan Wind	19523	Kotlin	2025-06-21 22:00:31
5	Aksel Holbek Sørbye	19657	Kotlin	2025-06-21 22:59:24

#	User	Length	Language	Date
1	Jesper Öqvist	685	Python 2	2018-09-17 13:56:59
2	Anton Lyxell	801	Python 2	2019-11-18 20:54:43
3	Ram Basnet	1400	Python 2	2019-11-29 23:07:27
4	James Lawson	1891	Python 2	2019-03-03 15:58:25
5	Harry Smidt	2054	Python 2	2019-10-15 20:05:28

#	User	Length	Language	Date
1	Sanil Katula	441	Python 3	2025-11-03 04:22:29
2	Lin Bigom-Eriksen	495	Python 3	2021-05-29 14:32:54
3	ANDREW FONG	604	Python 3	2026-03-09 07:44:42
4	Nicholas Russell Saerang	668	Python 3	2023-06-29 01:27:23
5	Heliya Shariati	675	Python 3	2022-07-04 06:32:03
6	Ruizhe Jiang	677	Python 3	2025-11-01 06:21:56
7	Zach Tschetter	683	Python 3	2023-09-16 18:50:44
8	Maximilian Saal	692	Python 3	2023-05-01 21:29:54
9	Matthew Cheney	702	Python 3	2020-11-24 22:03:32
10	Andrei	731	Python 3	2022-10-29 09:05:33

#	User	Length	Language	Date
1	Bas Dirks	1669	Rust	2024-02-20 07:35:59
2	Akemi Izuko	1788	Rust	2022-11-01 01:00:35

Solution running time distribution