Problem O
Which Number Kind Is It? — Problem Statistics

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Submissions	2478
Accepted submissions	1164
Submission ratio	46.97%
Authors	1016
Full solves [?]	963
Full solve Ratio	94.78%

#	User	Runtime	Language	Date
1	Edson Alves	0.30 s	APL	2025-01-08 15:07:42

#	User	Runtime	Language	Date
1	Danny Robinson	0.05 s	Bash	2024-11-13 00:22:07

#	User	Runtime	Language	Date
1	Joacim Wärn	0.00 s	C	2025-04-26 20:23:17
2	Hidden user	0.00 s	C	2025-06-11 21:42:21
3	Robert Lowe	0.01 s	C	2024-11-09 18:54:15
4	Nihat Altiparmak	0.01 s	C	2024-11-09 19:45:50
5	Indah Mbah	0.01 s	C	2024-11-12 08:59:59
6	Florian ten Napel	0.01 s	C	2024-11-14 15:25:16
7	Hidden user	0.01 s	C	2024-11-19 15:49:16
8	Enzo Ruggeri Isotton	0.01 s	C	2024-11-21 19:33:13
9	Hidden user	0.01 s	C	2024-12-01 15:57:38
10	Karl-Johan Holterberg	0.01 s	C	2024-12-08 00:51:08

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	C#	2024-11-15 12:25:16
2	KIRA BELMONT	0.19 s	C#	2025-06-14 16:55:07
3	Deci Bel	0.20 s	C#	2024-11-12 18:38:31
4	Martin Jentoft	0.20 s	C#	2024-12-27 12:14:57
5	Michael Damsgaard	0.21 s	C#	2024-11-15 00:19:58
6	Esty Crow	0.21 s	C#	2024-11-22 08:46:19
7	clarence chen	0.21 s	C#	2024-11-22 18:03:38
8	John Kuroda	0.21 s	C#	2025-01-18 06:27:15
9	Mark Nickelsen	0.21 s	C#	2025-11-21 11:46:13
10	Nicholas Hood	0.22 s	C#	2024-11-10 01:05:30

#	User	Runtime	Language	Date
1	Alexander Kravberg	0.00 s	C++	2025-01-13 22:34:53
2	Maxwell Chen	0.01 s	C++	2024-11-09 18:04:32
3	Daniel Chen	0.01 s	C++	2024-11-09 18:10:08
4	Tùng Hoàng Lâm	0.01 s	C++	2024-11-10 01:09:19
5	Hidden user	0.01 s	C++	2024-11-10 09:30:52
6	Frans Meulenbroeks	0.01 s	C++	2024-11-10 16:06:16
7	Harry Zhou	0.01 s	C++	2024-11-10 22:50:55
8	Leszek Hanusiak	0.01 s	C++	2024-11-11 10:32:32
9	Minh Nguyễn Xuân	0.01 s	C++	2024-11-11 19:14:09
10	Simon Winther Albertsen	0.01 s	C++	2024-11-12 08:47:23

#	User	Runtime	Language	Date
1	Frank Endriss	0.89 s	COBOL	2024-12-11 13:49:20

#	User	Runtime	Language	Date
1	Norvell Spearman	0.26 s	Common Lisp	2024-12-19 04:35:39

#	User	Runtime	Language	Date
1	Hidden user	0.48 s	F#	2024-12-12 04:28:04

#	User	Runtime	Language	Date
1	Norbert Voelker	0.01 s	Go	2024-11-14 21:40:12
2	Dylan	0.15 s	Go	2025-10-07 20:44:42
3	Jimmy Nejtron	0.98 s	Go	2024-11-11 12:34:29
4	Felix Dallmeyer	1.11 s	Go	2024-11-23 16:27:38

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.02 s	Haskell	2024-11-11 07:36:30
2	Brent Yorgey	0.14 s	Haskell	2024-11-09 18:20:07
3	Jan Hrček	0.14 s	Haskell	2024-12-03 08:39:43
4	Timur Khazhiev	0.14 s	Haskell	2024-12-31 11:54:25
5	Hidden user	0.16 s	Haskell	2024-11-28 18:46:13
6	Lukas Viering	0.28 s	Haskell	2025-02-20 19:24:10
7	Ng Tek In	0.34 s	Haskell	2024-11-22 16:07:45
8	Christopher Whelan	0.38 s	Haskell	2025-01-01 02:54:10

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.06 s	Java	2024-11-11 19:13:09
2	Guangyi Zhou	0.07 s	Java	2024-12-01 11:32:32
3	Hidden user	0.15 s	Java	2024-11-10 14:31:16
4	Einar Þór Ívarsson	0.15 s	Java	2025-03-27 16:57:16
5	Ben Cobb	0.17 s	Java	2025-04-04 21:50:45
6	Martha E.	0.17 s	Java	2025-11-10 00:04:23
7	Alexander Matheson	0.18 s	Java	2025-02-05 23:26:05
8	Nicholas Nagy	0.18 s	Java	2025-02-06 00:18:29
9	Luis Varona	0.19 s	Java	2025-02-05 23:44:22
10	Chan Yong Chee	0.20 s	Java	2024-12-01 15:17:18

#	User	Runtime	Language	Date
1	Hidden user	0.48 s	JavaScript (Node.js)	2024-11-10 21:08:46

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.19 s	JavaScript (SpiderMonkey)	2024-11-09 18:38:23
2	Evan Magill	0.19 s	JavaScript (SpiderMonkey)	2024-11-19 23:25:20
3	Zach Tschetter	0.19 s	JavaScript (SpiderMonkey)	2025-01-24 19:31:47
4	Christian Pilegaard Cederquist	0.20 s	JavaScript (SpiderMonkey)	2024-11-12 06:34:07
5	Quoc Anh Khoa Nguyen	0.20 s	JavaScript (SpiderMonkey)	2025-01-24 19:32:43
6	Ben Armstrong	0.20 s	JavaScript (SpiderMonkey)	2025-08-10 00:29:36
7	Jimmy Gustafsson	0.21 s	JavaScript (SpiderMonkey)	2024-12-05 22:18:00

#	User	Runtime	Language	Date
1	Timothy Gaede	1.27 s	Julia	2025-03-20 06:54:01

#	User	Runtime	Language	Date
1	Adam Rankin	0.80 s	Kotlin	2024-11-22 03:18:38
2	Chris Johnson	1.33 s	Kotlin	2025-10-07 21:32:06

#	User	Runtime	Language	Date
1	Nino Bašić	0.17 s	Nim	2024-11-11 16:37:49

#	User	Runtime	Language	Date
1	Sebastian Banert	0.13 s	OCaml	2024-11-10 21:58:26

#	User	Runtime	Language	Date
1	Hidden user	0.34 s	Odin	2025-04-23 22:55:05

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.02 s	Pascal	2025-02-02 09:11:53

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.68 s	Prolog	2025-01-23 10:35:32

#	User	Runtime	Language	Date
1	Jiaming Kong	0.06 s	Python 3	2025-06-26 04:26:01
2	Simen Sørensen	0.07 s	Python 3	2024-11-10 13:11:09
3	Stanley Zhong	0.08 s	Python 3	2024-11-09 18:12:44
4	Petr	0.08 s	Python 3	2024-11-10 00:59:49
5	Firman Syah	0.08 s	Python 3	2024-11-10 02:05:26
6	Ram Basnet	0.08 s	Python 3	2024-11-11 05:43:36
7	Andrew Tapia	0.09 s	Python 3	2024-11-09 21:51:52
8	Rebecca Jackson	0.09 s	Python 3	2024-11-11 18:13:08
9	Arnav Upadhyay	0.09 s	Python 3	2024-11-23 13:36:00
10	Anh Le Manh Duc	0.09 s	Python 3	2024-11-26 08:03:19

#	User	Runtime	Language	Date
1	Miorel Palii	0.17 s	Ruby	2024-11-12 08:23:57
2	Thomas Feld	0.21 s	Ruby	2025-01-27 14:23:13

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-11-10 13:57:19
2	Artur Khuziakhmetov	0.01 s	Rust	2025-02-13 09:52:23
3	Pankajkumar Patro	0.12 s	Rust	2024-11-10 15:38:34
4	David Rasch	0.12 s	Rust	2025-01-17 15:15:30
5	Erik Magnusson	0.12 s	Rust	2025-01-19 20:32:44
6	Nathaniel Risum	0.12 s	Rust	2025-02-24 18:59:29
7	Gabriella Gloria	0.12 s	Rust	2025-04-22 18:53:36
8	Isak Jägberg	0.13 s	Rust	2024-11-11 11:02:31
9	Yutong Wang	0.13 s	Rust	2024-12-05 19:07:42
10	Bas Dirks	0.13 s	Rust	2024-12-25 20:25:40

#	User	Runtime	Language	Date
1	Grettir Heimisson	0.00 s	Zig	2025-11-06 15:21:13

#	User	Length	Language	Date
1	Edson Alves	393	APL	2025-01-08 15:07:42

#	User	Length	Language	Date
1	Danny Robinson	67	Bash	2024-11-13 00:22:07

#	User	Length	Language	Date
1	Robert Lowe	370	C	2024-11-09 18:54:15
2	Enzo Ruggeri Isotton	380	C	2024-11-21 19:33:13
3	KARTHIKAA K	424	C	2025-04-14 14:22:37
4	THARANI G	445	C	2025-04-10 15:35:13
5	MADHUMITHA K	450	C	2025-04-09 11:24:43
6	Gabriel Lavier	451	C	2024-12-18 14:12:17
7	HARITHA S R	451	C	2025-04-15 13:28:55
8	Hidden user	455	C	2025-04-20 05:42:06
9	Fereshta Hasanzada	478	C	2025-04-16 08:28:51
10	Hidden user	481	C	2025-04-22 06:11:23

#	User	Length	Language	Date
1	Esty Crow	724	C#	2024-11-22 08:46:19
2	clarence chen	756	C#	2024-11-22 18:03:38
3	Գոռ Բաղդասարյան	782	C#	2024-11-11 12:22:12
4	Hidden user	848	C#	2024-11-15 11:48:36
5	Michael Damsgaard	850	C#	2024-11-15 00:19:58
6	John Kuroda	871	C#	2025-01-18 06:27:15
7	Mark Nickelsen	900	C#	2025-11-21 11:46:13
8	Nicholas Hood	1046	C#	2024-11-10 01:05:30
9	Martin Jentoft	1059	C#	2024-12-27 12:14:57
10	Dennis Stegnell	1259	C#	2024-11-16 16:00:01

#	User	Length	Language	Date
1	Frans Meulenbroeks	145	C++	2024-11-10 16:10:04
2	Teikn Smith	259	C++	2024-11-10 06:04:15
3	Nathan Duncan	303	C++	2024-11-09 18:43:09
4	Brandon Lau	314	C++	2025-01-24 09:28:22
5	Yung Chi Li	323	C++	2024-11-09 19:41:31
6	Adrian Alexander Calero Cordero	326	C++	2024-11-09 18:14:45
7	Florian Cliquet	342	C++	2024-11-24 03:26:09
8	mud players	349	C++	2024-11-09 22:02:58
9	Frederik Vase	355	C++	2024-12-29 00:50:09
10	Dominyka Sasnauskaitė	359	C++	2025-01-26 14:38:55

#	User	Length	Language	Date
1	Frank Endriss	6635	COBOL	2024-12-11 13:49:20

#	User	Length	Language	Date
1	Norvell Spearman	772	Common Lisp	2024-12-19 04:35:39

#	User	Length	Language	Date
1	Hidden user	399	F#	2024-12-12 04:28:04

#	User	Length	Language	Date
1	Felix Dallmeyer	453	Go	2024-11-23 16:27:38
2	Dylan	594	Go	2025-10-07 20:44:42
3	Jimmy Nejtron	619	Go	2024-11-11 12:34:29
4	Norbert Voelker	822	Go	2024-11-14 21:40:12

#	User	Length	Language	Date
1	Lukas Viering	345	Haskell	2025-02-20 19:24:10
2	Brent Yorgey	389	Haskell	2024-11-09 18:20:07
3	Christopher Whelan	416	Haskell	2025-01-01 02:54:10
4	Jan Hrček	435	Haskell	2024-12-03 08:39:43
5	Timur Khazhiev	466	Haskell	2024-12-31 11:54:25
6	Hidden user	611	Haskell	2024-11-28 18:46:13
7	Steinar Simonnes	740	Haskell	2024-11-11 07:33:46
8	Ng Tek In	1503	Haskell	2024-11-22 16:07:45

#	User	Length	Language	Date
1	Raymond Arrington	394	Java	2024-11-18 15:26:08
2	Trương Thanh Hải	487	Java	2024-11-21 14:16:23
3	Hidden user	526	Java	2025-02-07 20:49:22
4	Mas simo	535	Java	2024-11-11 18:42:22
5	Thomas Anung Basuki	535	Java	2025-05-14 05:50:23
6	Terry Morris	555	Java	2025-12-09 21:01:23
7	Evan Jones	558	Java	2025-02-07 20:22:02
8	Ron Offengenden	563	Java	2025-02-07 20:31:06
9	Derek Rimkus	568	Java	2025-09-23 16:52:32
10	KISHHORE S	574	Java	2025-04-08 15:59:32

#	User	Length	Language	Date
1	Hidden user	870	JavaScript (Node.js)	2024-11-10 21:08:46

#	User	Length	Language	Date
1	Jimmy Gustafsson	89	JavaScript (SpiderMonkey)	2024-12-05 22:18:00
2	Bjørn Chr. Soltvedt	123	JavaScript (SpiderMonkey)	2024-11-09 18:40:38
3	Evan Magill	155	JavaScript (SpiderMonkey)	2024-11-19 23:25:20
4	Ben Armstrong	203	JavaScript (SpiderMonkey)	2025-08-10 00:29:36
5	Christian Pilegaard Cederquist	222	JavaScript (SpiderMonkey)	2024-11-12 06:34:07
6	Zach Tschetter	251	JavaScript (SpiderMonkey)	2025-02-20 19:22:31
7	Quoc Anh Khoa Nguyen	289	JavaScript (SpiderMonkey)	2025-01-24 19:32:43

#	User	Length	Language	Date
1	Timothy Gaede	340	Julia	2025-03-20 06:54:01

#	User	Length	Language	Date
1	Adam Rankin	451	Kotlin	2024-11-22 03:18:38
2	Chris Johnson	887	Kotlin	2025-10-07 21:32:06

#	User	Length	Language	Date
1	Nino Bašić	456	Nim	2024-11-11 16:37:49

#	User	Length	Language	Date
1	Sebastian Banert	405	OCaml	2024-11-10 21:58:26

#	User	Length	Language	Date
1	Hidden user	500	Odin	2025-04-23 22:55:05

#	User	Length	Language	Date
1	Ingemar Ragnemalm	404	Pascal	2025-02-02 09:11:53

#	User	Length	Language	Date
1	Andriy Zyevakov	3295	Prolog	2025-01-23 10:35:32

#	User	Length	Language	Date
1	Kevin Gomez	72	Python 3	2024-11-12 18:31:29
2	Thibault Raffaillac	79	Python 3	2025-01-14 10:23:00
3	Maxim Barbe	85	Python 3	2024-11-17 03:11:15
4	Hugo Morvan	100	Python 3	2024-11-14 21:20:58
5	Guillermo Garcia Ramos de la Rosa	100	Python 3	2024-12-04 20:19:15
6	Nicholas Russell Saerang	101	Python 3	2024-12-04 19:54:28
7	Hidden user	104	Python 3	2025-01-29 11:09:41
8	Shashank Bhatt	110	Python 3	2024-11-10 02:37:44
9	Andriy Peleshchyshyn	115	Python 3	2025-10-23 19:51:04
10	David Worley	117	Python 3	2025-10-27 17:13:32

#	User	Length	Language	Date
1	Thomas Feld	65	Ruby	2025-01-27 14:23:13
2	Miorel Palii	170	Ruby	2024-11-12 08:23:57

#	User	Length	Language	Date
1	Emil Dichmann	438	Rust	2025-08-22 19:51:15
2	Artur Khuziakhmetov	484	Rust	2025-02-13 09:39:37
3	Bas Dirks	533	Rust	2024-12-25 20:25:40
4	Pankajkumar Patro	607	Rust	2024-11-10 15:38:34
5	Isak Jägberg	657	Rust	2024-11-11 11:02:31
6	David Rasch	757	Rust	2025-01-17 15:15:30
7	Nathaniel Risum	778	Rust	2025-02-24 18:53:44
8	Yutong Wang	916	Rust	2024-12-05 19:07:42
9	Max Hu	1087	Rust	2025-07-01 21:47:45
10	Gabriella Gloria	1820	Rust	2025-04-22 18:53:36

#	User	Length	Language	Date
1	Grettir Heimisson	2554	Zig	2025-11-06 14:50:16

Solution running time distribution