Problem A
Collatz Conjecture — Problem Statistics

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Submissions	1136
Accepted submissions	433
Submission ratio	38.12%
Authors	327
Full solves [?]	234
Full solve Ratio	71.56%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.69 s	C	2019-09-25 16:00:01
2	Hidden user	1.08 s	C	2024-01-24 11:02:40

#	User	Runtime	Language	Date
1	Hidden user	2.21 s	C#	2020-12-13 20:03:31

#	User	Runtime	Language	Date
1	Constantijn Dekker	0.28 s	C++	2021-04-03 19:30:09
2	David Lolck	0.51 s	C++	2019-11-18 12:40:54
3	Ethan Luo	0.57 s	C++	2024-02-02 09:13:26
4	Christian Yongwhan Lim	0.58 s	C++	2023-08-16 04:36:34
5	Kenneth Langedal	0.62 s	C++	2021-08-29 11:07:57
6	Lawry Sorenson	0.63 s	C++	2024-02-15 00:57:09
7	Pavel Verigo	0.67 s	C++	2019-10-01 17:21:06
8	Nyamdavaa Amar	0.67 s	C++	2021-08-07 11:48:48
9	Li Jiayu	0.67 s	C++	2022-03-01 11:14:41
10	Hidden user	0.67 s	C++	2022-03-07 21:20:44

#	User	Runtime	Language	Date
1	Tim Put	2.54 s	Haskell	2021-05-12 05:29:44
2	Brent Yorgey	5.78 s	Haskell	2018-12-03 05:33:06

#	User	Runtime	Language	Date
1	Paul Boddington	0.84 s	Java	2020-07-23 20:24:18
2	Bjørn Dons	1.03 s	Java	2022-04-28 22:57:15
3	Chris Gittings	1.16 s	Java	2021-01-09 03:09:06
4	Benjamin Reidys	2.24 s	Java	2019-11-06 19:46:01
5	Pedro Contipelli	2.40 s	Java	2017-11-22 02:50:56
6	Nicole Barias	2.45 s	Java	2023-09-10 18:11:37
7	Collin Jakubik	2.46 s	Java	2020-12-15 02:09:53
8	Nicole Barias	2.49 s	Java	2023-09-11 12:39:22
9	Kadin Tang	2.54 s	Java	2020-12-13 20:41:48
10	Tjibbe van der Veen	2.96 s	Java	2018-10-31 15:03:31

#	User	Runtime	Language	Date
1	Christian Cederquist	3.69 s	JavaScript (SpiderMonkey)	2023-08-10 19:07:06

#	User	Runtime	Language	Date
1	Adam Rankin	2.60 s	Kotlin	2023-09-27 03:48:48

#	User	Runtime	Language	Date
1	Harry Smidt	0.96 s	Python 2	2018-08-30 20:22:07
2	Andreas Björklund	1.53 s	Python 2	2018-12-27 08:50:54
3	Josenildo Silva	1.58 s	Python 2	2018-04-24 21:38:05
4	Johan Lyts	1.72 s	Python 2	2020-01-04 21:49:36
5	Bertrand Evertz	1.87 s	Python 2	2020-03-28 14:44:45
6	Tomas Alvarez	2.71 s	Python 2	2017-11-20 03:50:37

#	User	Runtime	Language	Date
1	Amit Joshi	1.06 s	Python 3	2020-12-19 18:20:13
2	Isaac Lee	1.09 s	Python 3	2023-08-13 04:38:28
3	Yosuke Mizutani	1.24 s	Python 3	2021-11-07 08:42:21
4	Duoduo Zhao	1.26 s	Python 3	2025-08-10 18:26:40
5	Caleb Dastrup	1.30 s	Python 3	2024-02-14 21:27:23
6	Shashank Bhatt	1.51 s	Python 3	2020-12-19 22:20:52
7	Bryan Juniano	1.57 s	Python 3	2025-05-06 19:11:44
8	Kadriye Yildiz	1.64 s	Python 3	2024-08-22 20:38:52
9	Oskar Haarklou Veileborg	1.67 s	Python 3	2020-08-10 16:34:36
10	Mithul Manivannan	1.69 s	Python 3	2020-12-19 19:20:27

#	User	Runtime	Language	Date
1	Hidden user	3.19 s	Ruby	2019-02-14 13:02:43

#	User	Runtime	Language	Date
1	Alice Ryhl	0.59 s	Rust	2019-09-15 09:01:22
2	Caleb Dastrup	0.79 s	Rust	2024-02-14 21:18:36
3	Daniel Anker Hermansen	1.12 s	Rust	2023-09-07 16:27:26

#	User	Length	Language	Date
1	Ivan Petrov	1111	C	2019-09-25 16:00:01
2	Hidden user	2150	C	2024-01-24 11:02:40

#	User	Length	Language	Date
1	Hidden user	4478	C#	2020-12-13 20:03:31

#	User	Length	Language	Date
1	Andree Stef	268	C++	2023-01-06 00:47:38
2	Matthew Joseph Schallenkamp	316	C++	2018-10-24 07:26:11
3	Evan Michael Bailey	360	C++	2024-02-05 05:37:12
4	Thomas Feld	364	C++	2023-08-09 13:54:36
5	Cameron Custer	398	C++	2023-05-19 01:16:11
6	Chris Trevisan	407	C++	2020-12-19 19:49:19
7	Yeoh Han Yi	429	C++	2025-04-15 17:12:47
8	Vu Hoang Kien	432	C++	2022-03-03 11:16:10
9	Rama Aryasuta Pangestu	434	C++	2022-03-01 02:22:31
10	Nicolás Alejandro Álvarez	436	C++	2018-06-28 16:47:39

#	User	Length	Language	Date
1	Tim Put	354	Haskell	2021-01-23 01:47:50
2	Brent Yorgey	1707	Haskell	2018-12-03 05:33:06

#	User	Length	Language	Date
1	Jesse Ventura	1023	Java	2018-10-18 23:21:27
2	Paul Boddington	1194	Java	2020-07-23 20:18:27
3	Tjibbe van der Veen	1288	Java	2018-10-31 15:03:31
4	Nicole Barias	1489	Java	2023-09-10 18:11:37
5	Nicole Barias	1489	Java	2023-09-11 12:39:22
6	Collin Jakubik	1498	Java	2020-12-15 02:09:53
7	Chris Gittings	1552	Java	2021-01-09 03:09:06
8	Benjamin Reidys	2150	Java	2019-11-06 19:46:01
9	Pedro Contipelli	3044	Java	2017-11-22 02:26:39
10	Kadin Tang	3499	Java	2020-12-13 20:41:48

#	User	Length	Language	Date
1	Christian Cederquist	851	JavaScript (SpiderMonkey)	2023-08-10 19:07:06

#	User	Length	Language	Date
1	Adam Rankin	794	Kotlin	2023-09-27 03:48:48

#	User	Length	Language	Date
1	Andreas Björklund	328	Python 2	2018-12-27 08:50:54
2	Johan Lyts	354	Python 2	2020-01-04 21:44:41
3	Josenildo Silva	411	Python 2	2018-04-24 21:38:05
4	Tomas Alvarez	458	Python 2	2017-11-20 03:50:37
5	Harry Smidt	508	Python 2	2018-08-30 20:22:07
6	Bertrand Evertz	543	Python 2	2020-03-28 14:44:45

#	User	Length	Language	Date
1	Thomas Feld	124	Python 3	2023-08-09 14:38:00
2	Caleb Dastrup	174	Python 3	2024-02-14 21:56:00
3	Isaac Erdman	176	Python 3	2024-02-10 18:59:03
4	Sven Holtrop	184	Python 3	2019-10-08 21:32:49
5	Lawry Sorenson	199	Python 3	2024-02-09 23:39:25
6	Oskar Haarklou Veileborg	201	Python 3	2020-08-10 16:34:36
7	Shashank Bhatt	202	Python 3	2023-06-13 18:12:28
8	Noam Cohen	219	Python 3	2022-04-03 15:56:47
9	Hidden user	240	Python 3	2022-11-27 21:30:44
10	Bryan Juniano	241	Python 3	2025-05-06 19:11:44

#	User	Length	Language	Date
1	Hidden user	228	Ruby	2019-02-14 13:02:43

#	User	Length	Language	Date
1	Caleb Dastrup	809	Rust	2024-02-14 21:18:36
2	Alice Ryhl	1397	Rust	2019-09-14 23:25:55
3	Daniel Anker Hermansen	26543	Rust	2023-09-07 16:27:26

Solution running time distribution