Problem A
Collatz Conjecture — Problem Statistics

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Submissions	1789
Accepted submissions	242
Submission ratio	13.53%
Authors	187
Accepted authors	149
Author ratio	79.68%

#	User	Runtime	Language	Date
1	Tanner Harper	0.01 s	C++	2016-11-23 03:38:51
2	Aaron Zou	0.01 s	C++	2016-11-23 07:02:27
3	Alfred Zhong	0.01 s	C++	2016-11-23 22:52:10
4	Juan Manuel Peñaranda	0.01 s	C++	2016-11-24 19:02:54
5	Thomas Gaubert	0.01 s	C++	2016-11-24 23:06:18
6	Caelan Evans	0.01 s	C++	2016-11-25 20:28:30
7	Jialin Li	0.01 s	C++	2016-11-26 06:08:35
8	Eric Lee	0.01 s	C++	2016-11-26 10:47:03
9	Dara Cline	0.01 s	C++	2016-11-26 16:49:12
10	Jordan Cline	0.01 s	C++	2016-11-26 17:09:47

#	User	Runtime	Language	Date
1	Ethan Yang	0.09 s	C++ with Memory Check	00:05:51
2	Glenn Downing	0.10 s	C++ with Memory Check	2025-08-17 03:03:04
3	Hidden user	0.12 s	C++ with Memory Check	05:21:54
4	Andrew Li	0.15 s	C++ with Memory Check	01:43:37

#	User	Runtime	Language	Date
1	Ajmal Khan	0.28 s	Java	2016-12-06 03:39:54

#	User	Runtime	Language	Date
1	Jake Mayo	0.06 s	Python 2	2016-11-21 01:11:21
2	Asad Mahdi	0.06 s	Python 2	2016-12-02 23:29:45
3	Nathan Seegmiller	0.07 s	Python 2	2016-11-29 21:09:57
4	Cathy Feng	0.08 s	Python 2	2016-11-28 20:14:06
5	Ajmal Khan	0.08 s	Python 2	2016-12-06 03:28:55

#	User	Runtime	Language	Date
1	Svyatoslav Ilinskiy	0.06 s	Python 3	2016-11-19 23:00:26
2	Brian Bechtel	0.06 s	Python 3	2016-11-21 04:48:17
3	Michael Volk	0.06 s	Python 3	2016-12-02 22:47:55
4	Dennis Le	0.06 s	Python 3	2016-12-03 02:53:43
5	Pranav Tonpe	0.06 s	Python 3	2025-08-28 23:43:49
6	Julie Muzy	0.07 s	Python 3	2016-11-29 22:38:46
7	Wenzhe Zhou	0.07 s	Python 3	04:05:14
8	Austin He	0.07 s	Python 3	07:46:08
9	Jack Jiang	0.08 s	Python 3	2016-12-02 07:28:59
10	Elizabeth Haynes	0.08 s	Python 3	2016-12-03 01:08:24

#	User	Length	Language	Date
1	Giovanni Alcantara	835	C++	2016-11-21 01:34:42
2	Alyjan Daya	841	C++	2016-12-02 17:45:20
3	Alyjan Daya	841	C++	2016-12-02 17:45:59
4	Shawn Wu	897	C++	2016-11-28 20:43:24
5	Trey Carlson	901	C++	2016-12-06 02:07:59
6	Evan Mosseri	935	C++	2016-11-25 06:17:03
7	Samuel Weismuller	965	C++	2016-12-02 05:22:47
8	Aditya Palnitkar	1004	C++	2016-11-26 17:56:19
9	Caelan Evans	1005	C++	2016-11-25 20:28:30
10	vladislav manoylo	1026	C++	2016-12-03 03:29:20

#	User	Length	Language	Date
1	Ethan Yang	667	C++ with Memory Check	00:05:51
2	Andrew Li	1006	C++ with Memory Check	01:43:37
3	Glenn Downing	1779	C++ with Memory Check	2025-08-17 03:03:04
4	Hidden user	3214	C++ with Memory Check	05:21:54

#	User	Length	Language	Date
1	Ajmal Khan	1801	Java	2016-12-06 03:39:54

#	User	Length	Language	Date
1	Cathy Feng	714	Python 2	2016-11-28 20:14:06
2	Ajmal Khan	1076	Python 2	2016-12-06 03:28:55
3	Asad Mahdi	2746	Python 2	2016-12-02 23:29:45
4	Jake Mayo	2917	Python 2	2016-11-21 01:11:21
5	Nathan Seegmiller	15852	Python 2	2016-11-29 21:09:57

#	User	Length	Language	Date
1	Justin Wong	563	Python 3	05:59:09
2	Cameron Reynoldson	737	Python 3	2016-12-02 07:41:17
3	Jose Lopez	781	Python 3	2025-08-28 23:18:25
4	Aarish Rajwani	813	Python 3	22:06:45
5	Andre Zhang	827	Python 3	22:16:27
6	Daniel Nguyen	861	Python 3	08:13:52
7	Glenn Downing	891	Python 3	2016-11-24 22:35:31
8	vladislav manoylo	915	Python 3	2016-12-03 02:56:38
9	Tianyun Duan	926	Python 3	2017-01-24 02:14:56
10	Chenyang Wang	959	Python 3	2016-12-02 22:45:01

Solution running time distribution