Problem A
Cantor — Problem Statistics

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Submissions	2104
Accepted submissions	839
Submission ratio	39.88%
Authors	658
Accepted authors	580
Author ratio	88.15%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2018-11-03 18:17:17
2	Isaac Saffold	0.00 s	C	2019-12-28 05:30:25
3	Nicolas Fleischer	0.00 s	C	2021-05-05 00:56:10
4	None of your buisness	0.00 s	C	2021-10-15 20:29:28
5	Ferry Farhan	0.00 s	C	2023-08-17 15:23:26
6	Oscar Cusin	0.00 s	C	2024-02-10 22:40:13
7	Rohan	0.00 s	C	2025-05-04 11:24:01
8	a_b__c	0.01 s	C	2021-01-28 18:14:36

#	User	Runtime	Language	Date
1	Piotr Karpala	0.01 s	C#	2016-10-30 04:14:27
2	Amith Kumar Matapady	0.02 s	C#	2019-02-10 08:36:05
3	Garway Mei	0.02 s	C#	2019-03-01 14:38:49
4	Thang Le Huu	0.02 s	C#	2019-11-28 04:00:40

#	User	Runtime	Language	Date
1	David Cawthon	0.02 s	Common Lisp	2019-05-25 20:52:03

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-08-28 00:22:11

#	User	Runtime	Language	Date
1	Jesper Sandström	0.00 s	Haskell	2017-09-19 21:34:55
2	Paul Wild	0.00 s	Haskell	2018-05-15 22:39:21
3	Tomas Möre	0.00 s	Haskell	2019-02-07 19:17:20
4	Steinar Simonnes	0.00 s	Haskell	2024-09-29 20:33:18
5	Isaac Arvestad	0.01 s	Haskell	2019-02-09 13:48:59
6	Udo Stenzel	0.01 s	Haskell	2020-05-26 09:51:10
7	Brent Yorgey	0.44 s	Haskell	2018-01-02 16:14:59

#	User	Runtime	Language	Date
1	MOHAMMAD NAUFAL HAZIM BIN SAHARUDIN	0.04 s	Java	2025-05-26 08:43:29
2	Petr Ryšavý	0.05 s	Java	2016-02-09 10:32:12
3	Nick Wu	0.05 s	Java	2016-03-24 03:42:06
4	Liam Keliher	0.05 s	Java	2016-07-26 02:17:09
5	Issam Baskati	0.05 s	Java	2016-12-06 03:34:40
6	Paul Boddington	0.05 s	Java	2017-01-08 19:04:09
7	Kell Skogh	0.05 s	Java	2017-03-21 13:34:29
8	Felix De Silva	0.05 s	Java	2017-09-25 11:51:22
9	Steven Cheng	0.05 s	Java	2018-05-23 19:33:13
10	Bryan Jin	0.05 s	Java	2018-08-15 05:45:30

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2017-01-22 22:37:12
2	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-05-31 08:38:51

#	User	Runtime	Language	Date
1	Noszály Csaba	0.40 s	Julia	2025-03-05 09:18:20
2	Timothy Gaede	0.92 s	Julia	2024-09-30 07:28:18

#	User	Runtime	Language	Date
1	Hidden user	0.15 s	Kotlin	2020-02-05 21:08:34
2	Adam Rankin	0.16 s	Kotlin	2023-05-09 00:47:17

#	User	Runtime	Language	Date
1	Oleg Smelov	0.01 s	Pascal	2019-02-26 21:46:38

#	User	Runtime	Language	Date
1	Henrik Adolfsson	0.02 s	Python 2	2017-02-05 15:49:33
2	Sigurður Jens Albertsson	0.02 s	Python 2	2018-01-06 14:13:09
3	Jesper Öqvist	0.02 s	Python 2	2018-11-02 00:03:31
4	Markus Videll	0.03 s	Python 2	2015-09-25 15:37:26
5	Christofer Ohlsson	0.03 s	Python 2	2017-05-16 09:35:32
6	Bertrand Evertz	0.03 s	Python 2	2018-04-18 16:45:24
7	Isaac Lee	0.04 s	Python 2	2016-08-15 01:22:28
8	Rhys Balevicius	0.04 s	Python 2	2017-10-31 21:37:55
9	Felix Balthasar Berief	0.04 s	Python 2	2019-02-06 10:38:54
10	Greg Hamerly	0.05 s	Python 2	2018-04-30 01:31:48

#	User	Runtime	Language	Date
1	Johan Kvastad	0.02 s	Python 3	2015-09-25 17:52:41
2	Isaac Lee	0.02 s	Python 3	2016-08-15 01:17:27
3	Ed Brook	0.02 s	Python 3	2017-01-08 16:16:13
4	Ethan Partidas	0.02 s	Python 3	2017-03-29 16:38:07
5	Chris Lang	0.02 s	Python 3	2017-03-30 05:06:52
6	Patrik Lilja	0.02 s	Python 3	2017-04-02 11:39:26
7	Win Htet Aung	0.02 s	Python 3	2017-07-13 03:20:54
8	Hidden user	0.02 s	Python 3	2017-09-13 12:57:57
9	Mathias Lindgren	0.02 s	Python 3	2017-09-21 10:56:19
10	Alice Heavey	0.02 s	Python 3	2017-09-21 19:33:49

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	Ruby	2017-07-13 01:48:33
2	Thomas Feld	0.06 s	Ruby	2023-02-09 12:19:56

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2019-02-09 12:02:01
2	Hidden user	0.00 s	Rust	2019-02-10 11:31:37
3	Gustaf Bergmark	0.00 s	Rust	2023-02-08 16:25:34
4	Vincent Lagerros	0.00 s	Rust	2024-02-08 02:24:07
5	Rasmus Andersson	0.00 s	Rust	2024-02-11 00:07:23
6	Christoffer Andersson	0.00 s	Rust	2024-02-11 20:29:52

#	User	Length	Language	Date
1	a_b__c	475	C	2021-01-28 18:14:36
2	None of your buisness	611	C	2021-10-15 20:29:28
3	Ferry Farhan	2025	C	2023-08-17 15:23:26
4	Nicolas Fleischer	2129	C	2021-05-05 00:56:10
5	Isaac Saffold	2131	C	2019-12-28 05:30:25
6	Rohan	2439	C	2025-05-04 11:24:01
7	Oscar Cusin	2993	C	2024-02-10 22:40:13
8	Bergur Snorrason	4912	C	2018-11-03 18:17:17

#	User	Length	Language	Date
1	Thang Le Huu	1030	C#	2019-11-28 04:00:40
2	Garway Mei	1618	C#	2019-03-01 14:38:49
3	Amith Kumar Matapady	1714	C#	2019-02-10 08:36:05
4	Piotr Karpala	6177	C#	2016-10-30 04:14:27

#	User	Length	Language	Date
1	Henrik Adolfsson	390	C++	2016-02-11 14:48:07
2	Johan Wind	430	C++	2018-08-28 22:57:53
3	Aidan Smith	447	C++	2018-01-06 14:37:45
4	Ankur Garg	448	C++	2021-10-08 04:46:36
5	James Rettie	449	C++	2022-10-05 05:54:27
6	Eimhin McDonald	454	C++	2018-04-21 09:48:20
7	Hyunjun Lee	456	C++	2022-12-09 08:48:56
8	王行悌	502	C++	2020-05-01 14:06:34
9	Hidden user	504	C++	2020-05-02 04:19:13
10	RUIXUAN TU	506	C++	2021-10-06 09:15:59

#	User	Length	Language	Date
1	David Cawthon	611	Common Lisp	2019-05-25 20:52:03

#	User	Length	Language	Date
1	Norbert Voelker	716	Go	2021-08-28 00:22:11

#	User	Length	Language	Date
1	Paul Wild	358	Haskell	2018-05-15 22:39:21
2	Jesper Sandström	420	Haskell	2017-09-19 21:37:29
3	Udo Stenzel	788	Haskell	2020-05-26 09:51:10
4	Steinar Simonnes	1036	Haskell	2024-09-29 20:33:18
5	Tomas Möre	1051	Haskell	2019-02-07 19:17:20
6	Isaac Arvestad	1666	Haskell	2019-02-09 13:48:59
7	Brent Yorgey	2498	Haskell	2018-01-02 16:14:59

#	User	Length	Language	Date
1	Janik Hammerschmitt	585	Java	2018-04-24 20:49:38
2	Shawn Zhong	597	Java	2017-09-18 08:17:39
3	Daniel Szabo	633	Java	2017-09-17 19:26:23
4	Emil Bak-Møller	640	Java	2019-03-21 14:26:28
5	Yalchin Aliyev	647	Java	2017-09-26 18:08:54
6	Michael Liu	661	Java	2018-07-08 07:21:59
7	Crystal Sharpe	735	Java	2023-02-09 01:02:06
8	Micah Stairs	736	Java	2016-07-26 00:49:44
9	Shirui Chen	751	Java	2017-09-17 03:11:09
10	Frank Ruskey	757	Java	2020-02-19 23:42:01

#	User	Length	Language	Date
1	Christian Cederquist	89	JavaScript (SpiderMonkey)	2023-05-31 08:47:30
2	Bjørn Chr. Soltvedt	240	JavaScript (SpiderMonkey)	2017-01-22 22:37:12

#	User	Length	Language	Date
1	Noszály Csaba	234	Julia	2025-03-05 10:05:10
2	Timothy Gaede	1287	Julia	2024-09-30 07:28:18

#	User	Length	Language	Date
1	Adam Rankin	533	Kotlin	2023-05-09 00:47:17
2	Hidden user	1413	Kotlin	2020-02-05 21:08:34

#	User	Length	Language	Date
1	Oleg Smelov	1038	Pascal	2019-02-26 21:46:38

#	User	Length	Language	Date
1	Thomas Feld	243	Python 2	2019-09-23 16:46:19
2	Jesper Öqvist	372	Python 2	2018-11-02 00:03:31
3	Henrik Adolfsson	437	Python 2	2017-02-05 15:49:33
4	Isaac Lee	483	Python 2	2016-08-15 01:22:28
5	Rhys Balevicius	550	Python 2	2017-10-31 21:37:55
6	Andreas Björklund	575	Python 2	2021-11-15 07:37:51
7	Johan Lyts	642	Python 2	2019-09-11 14:54:48
8	Asger Hautop Drewsen	665	Python 2	2015-11-24 02:02:58
9	Bertrand Evertz	722	Python 2	2018-04-18 16:45:24
10	Christofer Ohlsson	732	Python 2	2017-05-16 09:35:32

#	User	Length	Language	Date
1	Shashank Bhatt	95	Python 3	2023-02-11 02:22:15
2	Kelly Dance	134	Python 3	2023-02-09 05:42:31
3	Farzam Abrishami	184	Python 3	2024-01-28 20:17:37
4	Peter Stauder	194	Python 3	2022-10-21 10:43:54
5	Lawry Sorenson	205	Python 3	2025-01-10 23:27:13
6	Bùi Việt Dũng	255	Python 3	2020-09-26 05:41:56
7	Noah Gergel	264	Python 3	2019-04-15 01:41:58
8	Keerat Singh	265	Python 3	2022-10-11 18:41:34
9	Lee Isaac	277	Python 3	2023-05-13 22:07:16
10	Christian Blumenthal	279	Python 3	2025-04-23 20:01:20

#	User	Length	Language	Date
1	Thomas Feld	78	Ruby	2023-02-14 13:55:04
2	Hidden user	1401	Ruby	2017-07-13 01:48:33

#	User	Length	Language	Date
1	Christoffer Andersson	782	Rust	2024-02-11 20:34:37
2	Rasmus Andersson	1212	Rust	2024-02-11 00:14:01
3	Vincent Lagerros	2222	Rust	2024-02-08 02:24:07
4	Hidden user	8255	Rust	2019-02-10 11:40:46
5	Gustaf Bergmark	8312	Rust	2023-02-08 16:25:34
6	Hidden user	10859	Rust	2019-02-09 12:48:33

Solution running time distribution