Problem I
Champernowne Count — Problem Statistics

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Submissions	995
Accepted submissions	447
Submission ratio	44.92%
Authors	447
Full solves [?]	362
Full solve Ratio	80.98%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2023-03-01 11:44:11
2	Teikn Smith	0.00 s	C	2023-08-08 16:20:18
3	Hidden user	0.00 s	C	2024-02-16 03:38:56
4	Alexander Bilde Pedersen	0.00 s	C	2025-04-08 10:15:14
5	Matthew Rojas	0.01 s	C	2025-10-16 00:34:11

#	User	Runtime	Language	Date
1	Ruben Rystedt	0.07 s	C#	2024-11-26 22:20:37

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2023-03-10 21:30:29

#	User	Runtime	Language	Date
1	Brent Yorgey	0.02 s	Haskell	2023-02-26 21:49:57

#	User	Runtime	Language	Date
1	Eric Xing	0.07 s	Java	2023-02-25 21:18:17
2	Sofia Yang	0.07 s	Java	2024-02-13 16:21:41
3	Bjørn Dons	0.08 s	Java	2023-03-07 20:06:47
4	Ian Riley	0.08 s	Java	2023-10-19 22:40:50
5	Eli Shelton	0.08 s	Java	2023-12-01 03:42:14
6	Sean McLaughlin	0.09 s	Java	2023-12-05 02:19:28
7	Coleton Wheeler	0.10 s	Java	2023-09-27 00:57:04
8	Mikey Ferguson	0.10 s	Java	2023-10-30 15:33:46
9	Bridget Michelle Kurr	0.10 s	Java	2023-11-11 14:29:22
10	Andrew Robbins	0.10 s	Java	2024-11-09 00:10:09

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.05 s	JavaScript (SpiderMonkey)	2024-03-16 18:42:04
2	Zach Tschetter	0.06 s	JavaScript (SpiderMonkey)	2023-07-04 19:49:05
3	Christian Pilegaard Cederquist	0.08 s	JavaScript (SpiderMonkey)	2023-06-12 17:03:15

#	User	Runtime	Language	Date
1	Timothy Gaede	0.61 s	Julia	2024-06-25 16:29:46

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.24 s	Kotlin	2025-08-06 16:48:52
2	Will	0.29 s	Kotlin	2024-01-21 05:48:17

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.06 s	Prolog	2024-12-03 07:16:53

#	User	Runtime	Language	Date
1	David Persoon	0.04 s	Python 2	2023-04-07 00:08:33

#	User	Runtime	Language	Date
1	Dominic Berzin Chua Way Gin	0.04 s	Python 3	2025-01-14 13:31:48
2	Tai Tze Kin	0.04 s	Python 3	2025-01-15 12:13:32
3	Elliot Anderson	0.04 s	Python 3	2025-09-12 21:52:21
4	Tien Vu	0.04 s	Python 3	2025-10-16 07:32:28
5	Hrant Hovhannisyan	0.04 s	Python 3	2026-02-03 07:07:12
6	Naveen Kumar S	0.04 s	Python 3	2026-02-13 16:05:40
7	Caeden Whitaker	0.05 s	Python 3	2023-02-25 20:48:26
8	Caeden Whitaker	0.05 s	Python 3	2023-02-26 02:49:58
9	Travis Zheng	0.05 s	Python 3	2023-02-26 04:55:19
10	John Swingle	0.05 s	Python 3	2023-02-26 05:42:41

#	User	Runtime	Language	Date
1	Thomas Feld	0.07 s	Ruby	2025-10-17 15:30:24

#	User	Runtime	Language	Date
1	Ian Riley	0.00 s	Rust	2023-05-30 07:26:40
2	Ng Tek In	0.01 s	Rust	2023-09-30 05:55:00

#	User	Length	Language	Date
1	Teikn Smith	139	C	2023-08-09 01:29:22
2	Hidden user	491	C	2024-02-16 03:38:56
3	Matthew Rojas	757	C	2025-10-16 00:34:11
4	Alexander Bilde Pedersen	1006	C	2025-04-08 10:15:14
5	Bergur Snorrason	1559	C	2023-03-01 11:44:11

#	User	Length	Language	Date
1	Ruben Rystedt	313	C#	2024-11-26 22:20:37

#	User	Length	Language	Date
1	Rishi Saran Vijayarajan	136	C++	2023-03-26 09:54:17
2	Jasmine Lea	136	C++	2023-03-26 09:56:11
3	Hidden user	277	C++	2024-02-17 19:44:31
4	Alejandro Malla	282	C++	2023-02-28 22:37:40
5	Bobby Brogan	297	C++	2023-03-17 13:32:45
6	Dmitry Lyubshin	312	C++	2023-04-09 12:42:12
7	John Khoo	312	C++	2025-01-29 16:11:18
8	Dominic Sagen	315	C++	2023-03-02 14:55:06
9	Nick Wu	328	C++	2023-02-26 03:25:29
10	Wyatt Hardin	341	C++	2023-03-01 02:34:18

#	User	Length	Language	Date
1	Norbert Voelker	688	Go	2023-03-10 21:30:29

#	User	Length	Language	Date
1	Brent Yorgey	494	Haskell	2023-02-26 21:49:57

#	User	Length	Language	Date
1	Hidden user	439	Java	2023-03-16 06:11:43
2	Hidden user	454	Java	2025-09-16 20:10:57
3	Jake Minder	478	Java	2023-03-29 02:07:07
4	Bridget Michelle Kurr	510	Java	2023-11-11 23:25:48
5	Tristen Brogan	544	Java	2023-03-27 20:52:55
6	Eli Nutter	561	Java	2023-02-25 21:37:16
7	Andrew Robbins	584	Java	2024-11-09 00:10:09
8	Brandon Algarra	640	Java	2025-10-24 19:40:23
9	Asif Newaz	643	Java	2024-06-19 17:27:32
10	Lena Fondeur	682	Java	2024-10-13 01:12:20

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	95	JavaScript (SpiderMonkey)	2024-03-16 18:45:07
2	Zach Tschetter	231	JavaScript (SpiderMonkey)	2023-07-04 19:49:05
3	Christian Pilegaard Cederquist	488	JavaScript (SpiderMonkey)	2023-06-12 17:03:15

#	User	Length	Language	Date
1	Timothy Gaede	1158	Julia	2024-06-25 16:29:46

#	User	Length	Language	Date
1	Steinar Simonnes	508	Kotlin	2025-08-06 16:48:52
2	Will	3522	Kotlin	2024-01-21 05:48:17

#	User	Length	Language	Date
1	Andriy Zyevakov	2941	Prolog	2024-12-03 07:16:53

#	User	Length	Language	Date
1	David Persoon	487	Python 2	2023-04-07 00:08:33

#	User	Length	Language	Date
1	Shashank Bhatt	92	Python 3	2023-03-04 03:05:47
2	Peter Stauder	98	Python 3	2023-03-02 07:31:35
3	Lee Isaac	100	Python 3	2023-05-16 08:30:21
4	Kelly Dance	108	Python 3	2023-04-08 01:15:26
5	Michael Goldwasser	117	Python 3	2023-02-25 22:47:53
6	Tobias Bessler	128	Python 3	2024-01-29 18:05:15
7	Daniel Bogorad	128	Python 3	2025-10-16 00:35:49
8	Yong Mao	130	Python 3	2023-05-20 02:57:22
9	Grayden Price	132	Python 3	2023-03-03 22:57:56
10	Caleb Dastrup	133	Python 3	2024-10-19 00:39:21

#	User	Length	Language	Date
1	Thomas Feld	73	Ruby	2025-10-17 15:31:54

#	User	Length	Language	Date
1	Ng Tek In	494	Rust	2023-09-30 05:55:00
2	Ian Riley	1445	Rust	2023-06-05 23:59:23

Solution running time distribution