Problem K
Keyboards in Concert — Problem Statistics

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Submissions	3291
Accepted submissions	1146
Submission ratio	34.82%
Authors	945
Full solves [?]	820
Full solve Ratio	86.77%

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	C	2019-01-04 09:50:06
2	Ivan Petrov	0.02 s	C	2019-11-04 14:41:03
3	Samuel Deutsch	0.02 s	C	2020-09-23 06:20:39
4	Gabriel Totev	0.02 s	C	2020-10-19 04:17:22
5	Komatsuna	0.02 s	C	2022-07-11 14:49:44
6	Mirel Cosulschi	0.12 s	C	2023-11-19 11:02:52
7	taichi	0.15 s	C	2023-05-15 00:56:46
8	Gael David Ruiz Ñurinda	0.41 s	C	2025-11-18 20:50:57

#	User	Runtime	Language	Date
1	Sébastien Paumier	0.14 s	C#	2018-11-10 11:43:00

#	User	Runtime	Language	Date
1	Daryll Ko	0.00 s	C++	2022-07-04 09:12:43
2	Yu-Chen Chan	0.00 s	C++	2024-04-12 00:41:44
3	Kenneth Langedal	0.01 s	C++	2019-11-25 16:22:57
4	Jim Zheng	0.01 s	C++	2020-02-04 15:39:40
5	Muhamad Affan	0.01 s	C++	2020-07-14 01:47:24
6	Duarte Nóbrega	0.01 s	C++	2020-07-19 17:56:16
7	Hidden user	0.01 s	C++	2022-02-12 19:22:16
8	Alexander Kravberg	0.01 s	C++	2024-11-30 01:15:17
9	Sven Rönnbäck	0.01 s	C++	2024-12-25 18:40:18
10	Dmitry Lyubshin	0.02 s	C++	2018-11-12 04:21:10

#	User	Runtime	Language	Date
1	Hugo Sansaqua	0.03 s	Common Lisp	2020-05-01 11:51:00

#	User	Runtime	Language	Date
1	Jakob Israelsen	0.29 s	F#	2020-02-07 16:58:14

#	User	Runtime	Language	Date
1	Norbert Voelker	0.16 s	Go	2021-12-04 20:48:43
2	Ben Reed	0.34 s	Go	2022-06-01 21:26:13

#	User	Runtime	Language	Date
1	Hidden user	0.16 s	Haskell	2022-09-03 14:46:33

#	User	Runtime	Language	Date
1	Leo Pan	0.09 s	Java	2022-10-20 21:58:32
2	Payas	0.09 s	Java	2023-02-09 05:46:56
3	Jimmy Dinh	0.09 s	Java	2023-12-09 09:41:28
4	Ayaka Nishihori	0.10 s	Java	2020-09-25 00:08:09
5	Trung Dang	0.10 s	Java	2021-09-24 04:05:31
6	Hidden user	0.10 s	Java	2021-09-24 04:06:35
7	Derek Thomson	0.10 s	Java	2022-02-10 03:25:04
8	Ahmad Barhamje	0.10 s	Java	2023-08-03 23:21:15
9	Bjørn Dons	0.11 s	Java	2018-12-28 03:44:12
10	Sparsh Sanchorawala	0.11 s	Java	2022-11-11 23:35:28

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.09 s	JavaScript (SpiderMonkey)	2023-06-04 07:30:00
2	Bjørn Chr. Soltvedt	0.40 s	JavaScript (SpiderMonkey)	2018-12-18 00:45:44

#	User	Runtime	Language	Date
1	Nicholas Johnson	0.27 s	Kotlin	2022-02-05 18:40:53
2	Jacob Huebner	0.40 s	Kotlin	2020-04-27 09:39:23

#	User	Runtime	Language	Date
1	Hidden user	0.07 s	Python 2	2018-12-08 14:47:10
2	Hermon Mulat	0.08 s	Python 2	2018-12-27 22:51:33
3	Skyler Kiefer	0.08 s	Python 2	2020-02-10 01:52:31
4	Andreas Björklund	0.09 s	Python 2	2018-12-24 05:23:47
5	Øyvind Haarberg	0.12 s	Python 2	2018-11-11 18:40:34
6	Lars Åström	0.13 s	Python 2	2019-09-18 15:31:40
7	Jaden Lee	0.13 s	Python 2	2020-09-19 20:06:19
8	Markus Fanebust Dregi	0.18 s	Python 2	2018-11-10 11:18:44
9	Arne Tobias Malkenes Ødegaard	0.24 s	Python 2	2019-10-29 17:06:10
10	Oskar Haarklou Veileborg	0.30 s	Python 2	2019-07-26 12:39:50

#	User	Runtime	Language	Date
1	Aaron Lengyel	0.08 s	Python 3	2024-10-01 01:46:38
2	Nathan Vaters	0.08 s	Python 3	2025-03-04 21:19:25
3	Adithya Palaniappan Ramesh	0.08 s	Python 3	2025-10-24 01:33:38
4	Kyle Gusdorf	0.09 s	Python 3	2020-10-20 03:02:51
5	Takumi ITO	0.09 s	Python 3	2023-05-11 07:52:09
6	August Danell Håkansson	0.09 s	Python 3	2023-06-15 10:20:14
7	Mason Barnhill	0.09 s	Python 3	2023-12-19 17:17:56
8	Ishrat Naba	0.09 s	Python 3	2025-03-05 00:00:55
9	Katie Chen	0.09 s	Python 3	2025-03-09 20:44:58
10	René Castañeda	0.09 s	Python 3	2025-05-31 20:54:07

#	User	Runtime	Language	Date
1	Thomas Feld	0.14 s	Ruby	2023-10-09 10:44:41
2	Bryan Terce	0.19 s	Ruby	2020-10-19 22:39:38
3	Yusuke Ichiki	0.19 s	Ruby	2022-05-12 17:12:39

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-05-21 18:19:38
2	Hidden user	0.01 s	Rust	2019-11-28 13:32:06
3	Haggi Haggi	0.01 s	Rust	2019-12-01 18:33:39
4	Ryosuke Takahashi	0.01 s	Rust	2023-05-09 00:42:08
5	Lukas Dutrieux	0.05 s	Rust	2025-10-20 18:49:55
6	Schnee	0.15 s	Rust	2023-05-15 10:40:24
7	Iwancof	0.34 s	Rust	2023-05-09 01:29:46
8	藤原潮人	0.56 s	Rust	2023-05-16 05:14:18
9	Trygve Eide Igesund	0.78 s	Rust	2023-08-27 11:56:12

#	User	Length	Language	Date
1	Gabriel Totev	910	C	2020-10-19 04:17:22
2	Samuel Deutsch	1052	C	2020-09-23 06:20:39
3	Mirel Cosulschi	1084	C	2023-11-19 11:02:52
4	Gael David Ruiz Ñurinda	1329	C	2025-11-18 20:50:57
5	Ivan Petrov	1358	C	2019-11-04 14:41:03
6	Hidden user	1359	C	2019-01-04 10:02:03
7	taichi	1503	C	2023-05-15 00:56:46
8	Komatsuna	1702	C	2022-07-11 14:49:44

#	User	Length	Language	Date
1	Sébastien Paumier	1632	C#	2018-11-10 11:43:00

#	User	Length	Language	Date
1	Anvit Sinha	349	C++	2024-04-11 22:44:44
2	David Sturgill	389	C++	2023-01-14 11:32:46
3	Armen Andreasyan	491	C++	2019-01-05 11:25:38
4	William Gan	493	C++	2018-12-04 16:15:45
5	James Tan	555	C++	2024-04-08 20:00:18
6	Leo Lee	564	C++	2024-04-02 18:53:18
7	Takuto Susuki	583	C++	2023-05-16 13:02:15
8	Emiliano Jossie	616	C++	2021-11-01 06:33:02
9	KEYANG LI	629	C++	2022-02-05 21:27:48
10	David Zheng	643	C++	2018-12-08 01:54:41

#	User	Length	Language	Date
1	Hugo Sansaqua	5861	Common Lisp	2020-05-01 11:51:00

#	User	Length	Language	Date
1	Jakob Israelsen	898	F#	2020-02-07 16:58:14

#	User	Length	Language	Date
1	Ben Reed	844	Go	2022-06-01 21:26:13
2	Norbert Voelker	1417	Go	2021-12-04 20:48:43

#	User	Length	Language	Date
1	Hidden user	1603	Haskell	2022-09-03 14:46:33

#	User	Length	Language	Date
1	Saisuvan Chikyala	1161	Java	2020-02-06 00:04:55
2	David Joy	1216	Java	2020-01-30 02:30:55
3	Chirag Asrani	1216	Java	2025-03-10 23:18:16
4	chirurg	1226	Java	2025-03-05 05:54:55
5	Hrushik Chiluvuri	1240	Java	2022-01-30 19:41:16
6	Ryan Chang	1246	Java	2021-09-24 01:39:27
7	Abhinav Dusi	1322	Java	2021-09-19 00:07:37
8	Russell Zhu	1448	Java	2022-01-30 19:39:21
9	Peter Jin	1510	Java	2022-10-12 12:56:36
10	Suhas T. Nagar	1511	Java	2022-02-07 17:10:28

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	450	JavaScript (SpiderMonkey)	2018-12-18 00:45:44
2	Christian Pilegaard Cederquist	791	JavaScript (SpiderMonkey)	2023-06-04 07:30:00

#	User	Length	Language	Date
1	Jacob Huebner	1228	Kotlin	2020-04-27 09:39:23
2	Nicholas Johnson	2644	Kotlin	2022-02-05 18:40:53

#	User	Length	Language	Date
1	Andreas Björklund	455	Python 2	2018-12-24 05:23:47
2	Oskar Haarklou Veileborg	481	Python 2	2019-07-26 12:39:50
3	Hermon Mulat	532	Python 2	2018-12-27 22:51:33
4	Arne Tobias Malkenes Ødegaard	591	Python 2	2019-10-29 17:06:10
5	Skyler Kiefer	600	Python 2	2020-02-10 01:52:31
6	Lars Åström	607	Python 2	2019-09-18 15:31:40
7	Øyvind Haarberg	643	Python 2	2018-11-11 18:40:34
8	Markus Fanebust Dregi	661	Python 2	2018-11-10 11:18:44
9	Hidden user	695	Python 2	2018-12-08 14:47:10
10	Jaden Lee	1102	Python 2	2020-09-19 20:06:19

#	User	Length	Language	Date
1	Jayden Pahukula	230	Python 3	2023-10-05 20:00:30
2	Thibault Raffaillac	243	Python 3	2023-03-17 14:28:22
3	Peter Stauder	272	Python 3	2023-03-11 19:10:35
4	Yong Mao	294	Python 3	2023-10-27 02:08:38
5	frodo821	295	Python 3	2022-05-17 06:38:41
6	Bhavesh Pareek	316	Python 3	2022-10-19 21:23:12
7	Casper Rysgaard	317	Python 3	2021-02-02 16:08:02
8	Saravana Polisetti	322	Python 3	2022-10-20 20:44:23
9	Lawry Sorenson	339	Python 3	2023-03-10 02:32:39
10	Nicholas Russell Saerang	344	Python 3	2024-03-03 18:37:12

#	User	Length	Language	Date
1	Thomas Feld	110	Ruby	2023-10-09 10:44:41
2	Bryan Terce	511	Ruby	2020-10-19 22:39:38
3	Yusuke Ichiki	524	Ruby	2022-05-12 17:12:39

#	User	Length	Language	Date
1	藤原潮人	1546	Rust	2023-05-16 05:14:18
2	Schnee	1656	Rust	2023-05-15 10:40:24
3	Trygve Eide Igesund	1919	Rust	2023-08-27 11:56:12
4	Lukas Dutrieux	2036	Rust	2025-10-20 18:49:55
5	Hidden user	2047	Rust	2019-11-25 00:19:41
6	Haggi Haggi	2800	Rust	2019-11-30 13:00:31
7	Ryosuke Takahashi	4025	Rust	2023-05-09 00:42:08
8	Iwancof	20384	Rust	2023-05-13 22:40:42
9	Vincent Lagerros	62684	Rust	2025-05-21 18:19:38

Solution running time distribution