Problem A
Generalized Recursive Functions — Problem Statistics

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Submissions	1579
Accepted submissions	576
Submission ratio	36.48%
Authors	478
Full solves [?]	405
Full solve Ratio	84.73%

#	User	Runtime	Language	Date
1	Michael Laszlo	0.30 s	C	2016-11-05 07:37:00
2	Mirel Cosulschi	0.81 s	C	2024-08-29 22:28:13

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.78 s	C#	2026-01-26 05:28:40

#	User	Runtime	Language	Date
1	Lars Hummelgren	0.02 s	C++	2018-01-18 22:51:09
2	Jonathan Hallström	0.02 s	C++	2023-06-19 18:07:25
3	Hidden user	0.03 s	C++	2025-09-12 16:17:36
4	Alexander Skidanov	0.03 s	C++	2025-09-12 16:27:36
5	永福劉	0.04 s	C++	2021-03-13 08:53:32
6	Ethan Ou	0.04 s	C++	2021-03-15 17:47:48
7	Artemis Ngoh	0.04 s	C++	2023-10-15 21:43:04
8	Hidden user	0.04 s	C++	2025-02-20 07:15:15
9	蔡東霖	0.04 s	C++	2025-03-19 16:27:24
10	黃柏誠	0.04 s	C++	2026-03-05 13:26:58

#	User	Runtime	Language	Date
1	Michael Laszlo	0.96 s	Go	2016-11-05 05:47:26

#	User	Runtime	Language	Date
1	Isaac Arvestad	0.25 s	Haskell	2019-05-26 14:07:20
2	Zach Tschetter	0.52 s	Haskell	2021-09-26 17:41:00
3	Brent Yorgey	0.67 s	Haskell	2018-01-08 17:36:39
4	Qi Ji	0.99 s	Haskell	2019-02-23 20:33:40

#	User	Runtime	Language	Date
1	Liam Keliher	0.44 s	Java	2020-05-06 08:36:19
2	Crystal Sharpe	0.46 s	Java	2020-08-22 04:35:43
3	Martin Jakobsson	0.54 s	Java	2018-04-03 15:39:13
4	Hyunjun Lee	0.55 s	Java	2022-10-28 15:52:26
5	Martijn Muijsers	0.56 s	Java	2017-04-29 15:15:42
6	Brian Wang	0.56 s	Java	2022-02-19 01:16:04
7	Kristiyan Balabanov	0.58 s	Java	2017-11-11 15:31:02
8	Marco Troltsch	0.59 s	Java	2016-06-11 02:31:21
9	Ludo Pulles	0.60 s	Java	2018-11-19 22:24:30
10	Jesper Öqvist	0.67 s	Java	2018-04-19 18:25:16

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	2.88 s	JavaScript (SpiderMonkey)	2023-02-09 01:39:24

#	User	Runtime	Language	Date
1	Hidden user	1.31 s	Kotlin	2020-05-06 03:34:49
2	Min-Zheng Shieh	1.35 s	Kotlin	2021-03-12 09:50:31
3	林恩衍	1.35 s	Kotlin	2021-03-18 13:14:22

#	User	Runtime	Language	Date
1	Andreas Björklund	0.24 s	Python 2	2019-05-23 16:53:19
2	Teodor Bucht	0.28 s	Python 2	2018-12-24 11:52:40
3	Michael Laszlo	0.29 s	Python 2	2016-11-05 07:41:59
4	Alexander Westberg-Bladh	0.29 s	Python 2	2018-11-19 19:49:55
5	Samuel Perkin	0.30 s	Python 2	2018-04-15 15:40:52
6	Wang Zhi Jian	0.30 s	Python 2	2019-05-11 09:59:17
7	Thore Husfeldt	0.30 s	Python 2	2019-05-23 09:17:23
8	Hidden user	0.33 s	Python 2	2018-11-19 18:28:12
9	Brandon Zhang	0.33 s	Python 2	2019-05-25 08:27:35
10	Hermon Mulat	0.34 s	Python 2	2018-01-10 21:07:52

#	User	Runtime	Language	Date
1	Hidden user	0.25 s	Python 3	2026-02-14 07:13:28
2	paopaomate	0.25 s	Python 3	2026-03-16 11:52:26
3	ThreeMonth03	0.26 s	Python 3	2024-03-17 21:09:05
4	Johannes Lindblom	0.27 s	Python 3	2020-01-11 18:39:48
5	Mingyee	0.27 s	Python 3	2026-03-10 08:13:25
6	Md Akif Chowdhury	0.28 s	Python 3	2022-07-09 08:13:37
7	鍾昊哲	0.28 s	Python 3	2023-03-10 12:54:16
8	Hidden user	0.28 s	Python 3	2024-01-03 14:27:28
9	鍾秉均	0.28 s	Python 3	2024-03-13 06:26:15
10	Aldo Luna Bueno	0.28 s	Python 3	2024-11-02 17:53:54

#	User	Length	Language	Date
1	Mirel Cosulschi	1868	C	2024-08-29 22:28:13
2	Michael Laszlo	4192	C	2016-11-05 07:37:00

#	User	Length	Language	Date
1	Andriy Zyevakov	15938	C#	2026-01-26 05:28:40

#	User	Length	Language	Date
1	Xuan Tung Nguyen	1219	C++	2020-03-07 06:55:52
2	賴宇弘	1451	C++	2025-02-20 11:36:27
3	Hidden user	1477	C++	2025-02-20 07:15:15
4	陳秉華	1545	C++	2025-02-20 02:36:01
5	林奕澄	1551	C++	2025-02-27 06:14:06
6	Artemis Ngoh	1553	C++	2023-10-15 21:43:04
7	cs	1610	C++	2026-03-24 15:31:18
8	林宸霆	1666	C++	2025-02-23 07:25:50
9	蔡東霖	1691	C++	2025-03-19 16:27:24
10	吳柏橙	1714	C++	2021-03-15 11:34:18

#	User	Length	Language	Date
1	Michael Laszlo	1824	Go	2016-11-05 05:47:26

#	User	Length	Language	Date
1	Qi Ji	1117	Haskell	2019-02-23 20:33:40
2	Brent Yorgey	1320	Haskell	2018-01-08 17:36:39
3	Zach Tschetter	1627	Haskell	2021-09-26 17:41:00
4	Isaac Arvestad	1843	Haskell	2019-05-26 14:07:20

#	User	Length	Language	Date
1	Crystal Sharpe	1326	Java	2020-08-22 04:35:43
2	Nanda Thant Sin	1346	Java	2019-01-06 10:15:10
3	Mark Wen	1376	Java	2022-02-19 01:47:32
4	Ludo Pulles	1386	Java	2018-11-19 18:32:22
5	Doug Goodman	1480	Java	2017-12-07 19:00:18
6	Malte Larsson	1498	Java	2018-04-04 12:24:54
7	Hyunjun Lee	1523	Java	2022-10-28 15:46:36
8	Austin Fernandez	1537	Java	2019-07-29 20:28:54
9	Thomas King	1556	Java	2019-07-27 19:25:31
10	Michael Zündorf	1643	Java	2019-02-05 23:24:40

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	986	JavaScript (SpiderMonkey)	2023-02-09 01:39:24

#	User	Length	Language	Date
1	Min-Zheng Shieh	1098	Kotlin	2021-03-12 09:50:31
2	Hidden user	1289	Kotlin	2020-05-06 03:34:49
3	林恩衍	1783	Kotlin	2021-03-18 13:14:22

#	User	Length	Language	Date
1	Thomas Feld	361	Python 2	2019-11-25 12:28:35
2	Oskar Haarklou Veileborg	463	Python 2	2019-05-23 15:41:42
3	Andreas Björklund	514	Python 2	2019-05-23 16:53:19
4	Dmitry Lyubshin	515	Python 2	2018-06-22 09:36:00
5	Jonatan Nilsson	556	Python 2	2018-04-03 23:30:58
6	Lars Åström	590	Python 2	2019-02-02 12:02:07
7	Oskar Larsson	596	Python 2	2019-05-21 18:14:11
8	Jacob Gummesson Atroshi	616	Python 2	2019-05-21 18:33:40
9	Wang Zhi Jian	642	Python 2	2019-05-11 09:59:17
10	Maj Stenmark	649	Python 2	2018-04-02 23:43:19

#	User	Length	Language	Date
1	Benjamin Z White	280	Python 3	2023-06-24 01:10:22
2	Thomas Vu	396	Python 3	2019-03-12 02:40:07
3	Clement Oh	402	Python 3	2024-03-27 13:35:24
4	Gustav Kalander	444	Python 3	2021-03-03 22:07:55
5	Donald Dong	453	Python 3	2023-01-08 08:16:47
6	Bryan Wong Wei Heng	457	Python 3	2020-04-08 15:20:39
7	Guillermo Hernández	462	Python 3	2021-10-27 21:50:49
8	Kelly Dance	465	Python 3	2022-06-29 19:55:27
9	Hidden user	467	Python 3	2025-05-09 00:48:09
10	Johan Wind	470	Python 3	2018-04-22 00:06:43

Solution running time distribution