Problem D
Recursion + Rand = !Fun — Problem Statistics

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Submissions	755
Accepted submissions	194
Submission ratio	25.70%
Authors	199
Accepted authors	140
Author ratio	70.35%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2020-03-10 09:31:47
2	Michael Laszlo	0.21 s	C	2016-11-07 16:24:54
3	Bergur Snorrason	0.21 s	C	2019-10-26 12:45:24

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2022-11-26 21:49:28

#	User	Runtime	Language	Date
1	Jd Dantes	0.06 s	Java	2016-03-12 08:00:48
2	Liam Keliher	0.06 s	Java	2016-03-24 04:00:26
3	Olav Røthe Bakken	0.06 s	Java	2018-11-06 23:36:43
4	Lim Yong Shen, Kevin	0.08 s	Java	2022-02-09 09:35:29
5	Huang Hongyi	0.08 s	Java	2023-08-22 18:10:56
6	Marco Karaan	0.11 s	Java	2016-03-12 07:42:06
7	Joey Chan	0.11 s	Java	2016-03-26 19:56:14
8	Måns Magnusson	0.11 s	Java	2016-03-27 01:27:02
9	Roger Ballard	0.11 s	Java	2017-10-02 03:21:26
10	Sumer Sao	0.11 s	Java	2017-11-06 23:03:42

#	User	Runtime	Language	Date
1	Hugo Eberhard	0.03 s	Python 2	2016-04-05 20:57:35
2	Bertrand Evertz	0.03 s	Python 2	2020-01-04 22:05:22
3	Erik Tjøswold	0.04 s	Python 2	2019-01-05 15:48:45
4	Hidden user	0.04 s	Python 2	2019-07-09 18:17:54

#	User	Runtime	Language	Date
1	Björn Magnusson	0.02 s	Python 3	2016-03-27 01:22:06
2	Richard Liu	0.02 s	Python 3	2017-11-06 22:25:57
3	Thomas Draper	0.05 s	Python 3	2022-09-03 19:56:29
4	Barry Tng	0.05 s	Python 3	2022-11-24 08:58:54
5	Lee Isaac	0.05 s	Python 3	2023-08-02 04:23:02
6	Neo Wei Qing	0.05 s	Python 3	2023-08-03 13:11:01
7	Marcus Xu	0.05 s	Python 3	2023-08-28 10:15:10
8	Oskar Haarklou Veileborg	0.06 s	Python 3	2020-02-05 08:19:15
9	Ryan Tan	0.06 s	Python 3	2023-08-06 18:20:33
10	Casper Rysgaard	0.07 s	Python 3	2024-03-21 18:16:36

#	User	Length	Language	Date
1	Michael Laszlo	792	C	2016-11-07 16:24:54
2	Ivan Petrov	1128	C	2020-03-10 09:31:47
3	Bergur Snorrason	2009	C	2019-10-26 12:45:24

#	User	Length	Language	Date
1	Teikn Smith	195	C++	2022-09-09 08:30:44
2	Jeremy Lim	337	C++	2023-12-23 11:40:19
3	Alexander Skidanov	347	C++	2025-03-22 16:30:12
4	Darryl Teo	378	C++	2024-05-02 11:01:28
5	Syx Pek	394	C++	2016-02-06 17:44:05
6	Tang Haoyun	469	C++	2023-08-22 13:45:39
7	Hidden user	507	C++	2023-08-02 17:55:37
8	Pontakorn Prasertsuk	519	C++	2023-08-06 20:53:31
9	Ryan Chew	529	C++	2019-01-10 14:22:32
10	Charlie Murphy	531	C++	2016-03-25 22:52:25

#	User	Length	Language	Date
1	Brent Yorgey	1796	Haskell	2022-11-26 21:49:28

#	User	Length	Language	Date
1	Sumer Sao	606	Java	2017-11-06 23:03:42
2	Måns Magnusson	732	Java	2016-03-27 01:27:02
3	Roger Ballard	830	Java	2017-10-02 03:21:26
4	Marco Karaan	917	Java	2016-03-12 07:42:06
5	Jd Dantes	943	Java	2016-03-12 08:00:48
6	Joey Chan	1213	Java	2016-03-26 19:56:14
7	Liam Keliher	1516	Java	2016-03-24 04:00:26
8	Steven Halim	1642	Java	2018-07-11 05:43:26
9	Nick Wu	2005	Java	2015-11-25 09:41:15
10	Olav Røthe Bakken	2155	Java	2018-11-06 23:36:43

#	User	Length	Language	Date
1	Hidden user	469	Python 2	2019-07-09 18:20:03
2	Bertrand Evertz	620	Python 2	2020-01-04 22:05:22
3	Erik Tjøswold	721	Python 2	2019-01-05 15:48:45
4	Hugo Eberhard	1215	Python 2	2016-04-05 20:57:35

#	User	Length	Language	Date
1	Lawry Sorenson	159	Python 3	2024-05-27 03:28:57
2	Neo Wei Qing	308	Python 3	2023-08-03 13:13:07
3	Marcus Xu	343	Python 3	2023-08-28 10:15:10
4	Lars Tveito	402	Python 3	2022-02-06 23:06:59
5	Oskar Haarklou Veileborg	404	Python 3	2020-02-05 08:19:15
6	Casper Rysgaard	434	Python 3	2024-03-21 18:16:36
7	Nicholas Russell Saerang	434	Python 3	2023-08-04 04:36:44
8	Richard Liu	461	Python 3	2017-11-06 22:25:57
9	Thomas Draper	539	Python 3	2022-09-03 19:56:29
10	Harry Zhang	552	Python 3	2024-07-18 01:34:18

Solution running time distribution