Problem A
Mastering Mastermind — Problem Statistics

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Submissions	4367
Accepted submissions	1865
Submission ratio	42.71%
Authors	1819
Full solves [?]	1643
Full solve Ratio	90.32%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.08 s	Bash	2024-04-16 16:18:54

#	User	Runtime	Language	Date
1	Raja Sanjeev Kumar Nakka	0.02 s	C#	2016-06-28 16:17:50
2	Mustafa Dinler	0.02 s	C#	2016-07-04 14:29:37
3	Samuel Wrååk	0.02 s	C#	2016-07-07 17:07:06
4	Robert Warnestam	0.02 s	C#	2017-02-18 20:38:20
5	Tristan Close	0.02 s	C#	2017-03-14 21:57:56
6	Brian Scott	0.02 s	C#	2017-11-08 05:49:41
7	Amith Kumar Matapady	0.02 s	C#	2019-02-10 07:30:10
8	Adhemar Botelo	0.02 s	C#	2019-09-12 03:23:27
9	Wendel Fabian Chinsamy	0.02 s	C#	2019-12-09 14:29:47
10	Merih Bora Poçan	0.02 s	C#	2020-09-30 16:52:58

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Common Lisp	2019-05-31 09:17:59

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.09 s	F#	2023-01-26 10:40:25

#	User	Runtime	Language	Date
1	Suka Isnaini	0.00 s	Go	2023-12-13 12:45:22
2	Albert Leung	0.08 s	Go	2021-06-21 05:37:19
3	Norbert Voelker	0.08 s	Go	2021-07-06 21:47:32

#	User	Runtime	Language	Date
1	Patrik Lilja	0.00 s	Haskell	2016-04-18 21:06:11
2	Brandon Mabey	0.00 s	Haskell	2018-01-11 04:02:54
3	Brent Yorgey	0.00 s	Haskell	2018-06-20 17:10:48
4	Steinar Simonnes	0.00 s	Haskell	2024-04-29 15:43:23
5	vagabundus	0.00 s	Haskell	2024-05-05 01:43:55
6	Michael Wong	0.01 s	Haskell	2019-06-15 18:53:00
7	Ryan Yates	0.01 s	Haskell	2019-09-11 02:19:19
8	Hidden user	0.01 s	Haskell	2019-11-05 15:48:10

#	User	Runtime	Language	Date
1	Jenny Liao	0.05 s	Java	2015-10-31 01:52:10
2	Nick Wu	0.05 s	Java	2015-11-09 22:13:14
3	Hidden user	0.05 s	Java	2015-11-12 23:54:59
4	Michael Sullivan	0.05 s	Java	2015-11-18 06:33:54
5	Marius de Vogel	0.05 s	Java	2016-04-02 16:09:35
6	Love Engman	0.05 s	Java	2016-05-19 17:11:41
7	Erik Baalhuis	0.05 s	Java	2016-08-05 19:49:53
8	Omar Brome	0.05 s	Java	2016-08-15 19:02:22
9	Martijn Muijsers	0.05 s	Java	2016-10-29 01:17:21
10	Claudius Sundlöf	0.05 s	Java	2016-12-02 00:23:54

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (Node.js)	2024-05-14 01:35:11
2	Tomas Velez	0.09 s	JavaScript (Node.js)	2022-06-26 22:41:34
3	Mikael Fiala-Lundström	0.42 s	JavaScript (Node.js)	2021-06-25 12:15:26
4	Gustaf Pihl	0.42 s	JavaScript (Node.js)	2021-12-02 21:07:02

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-01-03 23:53:12
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-03-22 01:38:06
3	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-03-28 10:44:20
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2025-07-09 22:33:07

#	User	Runtime	Language	Date
1	Timothy Gaede	0.68 s	Julia	2024-05-23 06:22:14

#	User	Runtime	Language	Date
1	Johnny Baloney	0.12 s	Kotlin	2021-12-26 21:28:35
2	Robert Berggren	0.14 s	Kotlin	2020-06-12 17:11:39
3	Jeff Cannon	0.15 s	Kotlin	2017-11-09 19:21:16
4	Hidden user	0.15 s	Kotlin	2017-11-17 00:57:57
5	Roger Bongers	0.16 s	Kotlin	2021-06-27 20:25:37
6	Adam Rankin	0.18 s	Kotlin	2023-08-31 00:58:56
7	Ravisai Tiruvuri	0.18 s	Kotlin	2024-04-29 07:17:32
8	Neil Harmon	0.19 s	Kotlin	2019-11-07 11:47:13
9	Adam Koprowski	0.19 s	Kotlin	2020-08-18 14:35:53
10	Dayan Ruben Gonzalez	0.19 s	Kotlin	2020-10-08 06:56:08

#	User	Runtime	Language	Date
1	Sander de Haan	0.00 s	Lua	2025-04-16 15:12:38

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	OCaml	2024-01-11 03:46:52

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-10-31 21:29:08

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2018-12-09 12:27:23

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.02 s	Python 2	2015-10-31 10:22:32
2	Greg Hamerly	0.02 s	Python 2	2015-12-10 06:35:00
3	Peter Sofronas	0.02 s	Python 2	2017-09-07 20:24:34
4	Brandon Sovran	0.02 s	Python 2	2022-10-22 21:18:07
5	Haggai Liu	0.03 s	Python 2	2017-03-26 21:45:53
6	Mohammed Daudali	0.03 s	Python 2	2017-10-10 23:21:01
7	Trevor Masters	0.03 s	Python 2	2017-11-09 18:52:21
8	Jesper Öqvist	0.03 s	Python 2	2018-10-31 17:18:39
9	Lars Åström	0.03 s	Python 2	2019-06-21 00:04:32
10	Maj Stenmark	0.03 s	Python 2	2019-09-08 22:35:56

#	User	Runtime	Language	Date
1	Wayne	0.02 s	Python 3	2016-05-12 19:41:18
2	Hidden user	0.02 s	Python 3	2016-08-20 18:20:38
3	Christian Lindeström	0.02 s	Python 3	2016-09-21 03:46:27
4	Joshua Li	0.02 s	Python 3	2016-10-07 04:28:42
5	Nguyen Hung Thai	0.02 s	Python 3	2016-10-07 13:38:33
6	John Barczynski	0.02 s	Python 3	2016-10-08 07:50:08
7	Joe Byrd	0.02 s	Python 3	2016-10-28 19:28:49
8	Josenildo Silva	0.02 s	Python 3	2016-12-30 20:02:09
9	Thomas Minde Isaksen	0.02 s	Python 3	2017-01-20 19:14:43
10	Cian Ruane	0.02 s	Python 3	2017-05-30 21:15:36

#	User	Runtime	Language	Date
1	Sean Malloy	0.05 s	Ruby	2021-11-11 18:57:57
2	Thomas Feld	0.06 s	Ruby	2023-03-31 09:13:33
3	Clement Oh	0.06 s	Ruby	2023-10-17 07:15:57

#	User	Runtime	Language	Date
1	Isak Jägberg	0.00 s	Rust	2020-08-15 12:03:42
2	David Rasch	0.00 s	Rust	2020-09-30 09:36:38
3	Bas Dirks	0.00 s	Rust	2022-01-19 16:24:02
4	Artur Khuziakhmetov	0.00 s	Rust	2022-07-27 07:58:10
5	Reis Faar	0.00 s	Rust	2023-04-10 17:20:56
6	James Adler	0.00 s	Rust	2023-09-15 20:00:08
7	Dustin Ward	0.00 s	Rust	2024-01-13 06:23:34
8	Hidden user	0.00 s	Rust	2025-02-05 17:51:15

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Zig	2025-06-11 16:00:58

#	User	Length	Language	Date
1	Chenzhang Hu	1650	Bash	2024-04-16 16:18:54

#	User	Length	Language	Date
1	sicupu	388	C	2020-10-04 05:46:48
2	Michal Kouril	412	C	2015-10-31 01:34:36
3	Aditya Kakliya	468	C	2016-10-28 18:45:31
4	Chuan Qi	539	C	2015-10-31 03:52:24
5	Mirel Cosulschi	579	C	2025-04-05 15:23:29
6	Efren Jewel Dela Cruz	586	C	2025-10-10 15:08:48
7	Brendon Mcebisi Tankwa	645	C	2017-05-01 02:18:53
8	Navid Assadian	652	C	2022-01-04 06:25:07
9	Sergio Huhuhu	719	C	2018-05-21 01:26:12
10	Naveen Kumar S	815	C	2025-04-04 15:55:51

#	User	Length	Language	Date
1	traxex	404	C#	2024-05-25 20:51:57
2	Brian Scott	603	C#	2017-11-08 21:29:40
3	Tristan Close	694	C#	2017-03-14 21:57:56
4	Mustafa Dinler	891	C#	2016-07-04 14:47:06
5	Sebastian Sternberg	1038	C#	2021-03-04 20:02:02
6	Merih Bora Poçan	1069	C#	2020-09-30 16:52:58
7	Samuel Wrååk	1088	C#	2016-07-07 17:07:06
8	Raja Sanjeev Kumar Nakka	1124	C#	2016-06-28 16:17:50
9	Shantanu Sharma	1237	C#	2025-10-10 04:17:05
10	Amith Kumar Matapady	1308	C#	2019-02-10 07:30:10

#	User	Length	Language	Date
1	Herman Karlsson	308	C++	2015-12-22 01:28:29
2	Jalvin Chan Jia Xiang	314	C++	2020-01-19 17:40:49
3	Ajay Theetharappan	317	C++	2020-02-16 11:55:14
4	陳厚竹	340	C++	2022-12-25 05:02:46
5	Mugeon Kim	340	C++	2024-02-18 07:39:04
6	blameazu	345	C++	2024-01-30 04:30:03
7	William Gan	349	C++	2018-02-09 15:06:05
8	Álvaro Martín Callejas Herrera	361	C++	2019-09-12 17:57:04
9	Matthew Joseph Schallenkamp	376	C++	2019-02-09 02:45:14
10	Saad Tahmid	376	C++	2023-11-17 11:37:43

#	User	Length	Language	Date
1	Hidden user	882	Common Lisp	2019-05-31 09:25:30

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	741	F#	2023-01-26 10:40:25

#	User	Length	Language	Date
1	Suka Isnaini	439	Go	2023-12-13 12:45:22
2	Norbert Voelker	847	Go	2021-07-06 21:47:32
3	Albert Leung	1172	Go	2021-06-21 05:37:19

#	User	Length	Language	Date
1	Ryan Yates	398	Haskell	2019-09-11 02:19:19
2	Patrik Lilja	596	Haskell	2016-04-18 21:06:11
3	Brent Yorgey	935	Haskell	2018-06-20 17:10:48
4	Brandon Mabey	1005	Haskell	2018-01-11 04:02:54
5	Steinar Simonnes	1007	Haskell	2024-04-29 15:43:23
6	Michael Wong	1162	Haskell	2019-06-15 18:53:00
7	vagabundus	1221	Haskell	2024-05-05 01:43:55
8	Hidden user	9401	Haskell	2019-11-05 15:48:10

#	User	Length	Language	Date
1	Doug Goodman	508	Java	2018-02-16 20:55:11
2	Michael Liu	531	Java	2018-06-17 04:04:32
3	Yeung Man Tsung	595	Java	2022-06-22 10:07:23
4	Wei Lun Toh	607	Java	2022-09-23 20:20:15
5	Tyler VanHaren	641	Java	2018-03-15 06:54:47
6	Andrea	680	Java	2023-09-12 16:55:39
7	John Ladera	714	Java	2020-01-03 06:19:19
8	Gabriel Andres Rodriguez	714	Java	2023-05-26 05:12:49
9	Theodoric Keith Lim	719	Java	2020-10-30 05:50:26
10	Ahmad Barhamje	721	Java	2019-08-06 08:32:27

#	User	Length	Language	Date
1	Tomas Velez	819	JavaScript (Node.js)	2022-06-26 22:41:34
2	Hidden user	849	JavaScript (Node.js)	2024-05-14 01:35:11
3	Gustaf Pihl	1040	JavaScript (Node.js)	2021-12-02 21:07:02
4	Mikael Fiala-Lundström	2206	JavaScript (Node.js)	2021-06-25 12:15:26

#	User	Length	Language	Date
1	Jimmy Gustafsson	188	JavaScript (SpiderMonkey)	2025-07-09 22:33:07
2	Christian Pilegaard Cederquist	425	JavaScript (SpiderMonkey)	2023-03-28 10:44:20
3	Peter Kedemo	531	JavaScript (SpiderMonkey)	2016-01-03 23:53:12
4	Bjørn Chr. Soltvedt	550	JavaScript (SpiderMonkey)	2016-03-22 01:38:06

#	User	Length	Language	Date
1	Timothy Gaede	795	Julia	2024-05-23 06:22:14

#	User	Length	Language	Date
1	Adam Koprowski	481	Kotlin	2020-08-18 14:35:53
2	Dayan Ruben Gonzalez	511	Kotlin	2020-10-08 06:56:08
3	Hidden user	606	Kotlin	2017-11-17 00:57:57
4	Nicholas Johnson	650	Kotlin	2020-02-07 21:00:58
5	Aaron Lamoreaux	655	Kotlin	2021-07-12 06:00:46
6	Roger Bongers	672	Kotlin	2021-06-27 20:25:37
7	Phường Lên	678	Kotlin	2019-11-08 05:25:09
8	Adam Rankin	681	Kotlin	2023-08-31 00:58:56
9	Karl Johan Heimark	760	Kotlin	2024-11-20 20:21:59
10	Robert Berggren	845	Kotlin	2020-06-12 17:11:39

#	User	Length	Language	Date
1	Sander de Haan	727	Lua	2025-04-16 15:12:38

#	User	Length	Language	Date
1	Hidden user	1419	OCaml	2024-01-11 03:46:52

#	User	Length	Language	Date
1	Ingemar Ragnemalm	720	Pascal	2018-10-31 21:29:08

#	User	Length	Language	Date
1	Andriy Zyevakov	1167	Prolog	2018-12-09 12:27:23

#	User	Length	Language	Date
1	Thomas Feld	216	Python 2	2020-01-02 16:46:44
2	Peter Sofronas	283	Python 2	2017-09-07 20:24:34
3	Jesper Öqvist	284	Python 2	2018-10-31 17:18:39
4	Haggai Liu	320	Python 2	2017-03-26 21:45:53
5	Trevor Masters	321	Python 2	2017-11-09 18:52:21
6	Lars Åström	331	Python 2	2019-06-21 00:04:32
7	Brandon Sovran	398	Python 2	2022-10-22 21:18:07
8	Johan Lyts	405	Python 2	2019-11-26 21:24:54
9	USaskAdvanced6	427	Python 2	2020-02-15 19:28:58
10	Mohammed Daudali	500	Python 2	2017-10-10 23:21:01

#	User	Length	Language	Date
1	Jackson Pelot	144	Python 3	2024-10-07 18:43:28
2	Johan Wind	151	Python 3	2018-05-13 22:16:26
3	Michael Goldwasser	165	Python 3	2024-08-29 01:29:19
4	Avery	176	Python 3	2025-06-17 01:28:55
5	Michael Loucks	184	Python 3	2023-04-13 21:00:46
6	Charles Ancheta	187	Python 3	2023-03-24 06:37:24
7	Adam Hassan	188	Python 3	2020-03-06 20:18:27
8	Teikn Smith	200	Python 3	2022-02-10 00:19:36
9	Hidden user	205	Python 3	2021-05-01 20:37:02
10	Kyle Landon Chen	213	Python 3	2024-05-14 02:41:23

#	User	Length	Language	Date
1	Thomas Feld	91	Ruby	2023-03-31 09:13:52
2	Clement Oh	181	Ruby	2023-10-17 07:15:57
3	Sean Malloy	528	Ruby	2021-11-11 18:57:57

#	User	Length	Language	Date
1	Bas Dirks	825	Rust	2022-01-19 16:24:02
2	James Adler	848	Rust	2023-09-15 20:00:08
3	Dustin Ward	869	Rust	2024-01-13 06:23:34
4	Artur Khuziakhmetov	897	Rust	2022-07-27 07:58:10
5	David Rasch	1002	Rust	2020-09-30 09:36:38
6	Reis Faar	1980	Rust	2023-04-10 17:20:56
7	Isak Jägberg	2971	Rust	2020-08-15 12:03:42
8	Hidden user	3643	Rust	2025-02-05 17:51:15

#	User	Length	Language	Date
1	Hidden user	1580	Zig	2025-06-11 16:00:58

Solution running time distribution