Problem A
Cryptographic Keys — Problem Statistics

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Submissions	2985
Accepted submissions	830
Submission ratio	27.81%
Authors	776
Full solves [?]	611
Full solve Ratio	78.74%

#	User	Runtime	Language	Date
1	Thomas Feld	0.03 s	APL	2023-08-07 13:23:55

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.02 s	Bash	2025-09-12 16:20:56

#	User	Runtime	Language	Date
1	traxex	0.04 s	C#	2024-05-08 13:02:22
2	Akib Ibn Zahid	0.04 s	C#	2025-11-19 10:53:02
3	Nop Nop	0.44 s	C#	2020-02-09 13:58:22
4	Abdellatif Elyoussefy	0.44 s	C#	2020-02-09 14:52:39

#	User	Runtime	Language	Date
1	Joakim Blikstad	0.00 s	Haskell	2017-08-25 21:01:55
2	Brent Yorgey	0.00 s	Haskell	2018-06-04 05:43:52
3	Juan Miguel Vilar	0.01 s	Haskell	2021-02-14 17:19:07
4	Ghaith Abou Dan	0.01 s	Haskell	2021-02-27 11:23:36

#	User	Runtime	Language	Date
1	Tan Yi Long	0.04 s	Java	2025-01-17 09:42:36
2	Md Abubakkar Shiddique Shovo	0.04 s	Java	2025-11-16 17:19:01
3	Marcus Johansson	0.05 s	Java	2010-09-25 21:18:47
4	Erik Odenman	0.05 s	Java	2011-09-07 18:10:39
5	Petr Ryšavý	0.05 s	Java	2016-02-16 15:19:30
6	Simon Xue	0.05 s	Java	2016-04-01 09:43:59
7	Paul Boddington	0.05 s	Java	2016-05-09 19:09:33
8	Erik Baalhuis	0.05 s	Java	2016-07-31 15:25:01
9	Nick Wu	0.05 s	Java	2016-08-14 08:52:27
10	Lozzi Ali	0.05 s	Java	2016-11-24 01:17:01

#	User	Runtime	Language	Date
1	Minh Trang Nguyen	0.04 s	JavaScript (Node.js)	2025-11-17 21:43:34
2	Emil Clemedson	0.62 s	JavaScript (Node.js)	2021-08-13 08:56:14

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-02-21 13:51:31
2	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-08-15 16:35:38

#	User	Runtime	Language	Date
1	Timothy Gaede	0.69 s	Julia	2024-08-23 07:54:35

#	User	Runtime	Language	Date
1	Sam Keyser	0.13 s	Kotlin	2022-05-21 02:53:13
2	Phường Lên	0.25 s	Kotlin	2020-03-08 02:03:54
3	Hidden user	0.26 s	Kotlin	2020-03-09 09:58:02
4	Adam Rankin	0.28 s	Kotlin	2023-05-12 01:56:17

#	User	Runtime	Language	Date
1	David Connolly	0.00 s	Pascal	2021-11-29 14:09:49

#	User	Runtime	Language	Date
1	Saginaw George	0.07 s	PHP	2021-01-03 02:49:11

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2019-06-25 18:36:44

#	User	Runtime	Language	Date
1	Greg Hamerly	0.03 s	Python 2	2015-12-17 20:16:37
2	Weijie Sun	0.03 s	Python 2	2016-03-09 23:37:07
3	Tomoyuki Kaneko	0.03 s	Python 2	2016-04-30 06:12:28
4	Sigurd Kittilsen	0.03 s	Python 2	2016-09-01 19:10:34
5	Josenildo Silva	0.03 s	Python 2	2017-04-09 18:41:34
6	Hermon Mulat	0.03 s	Python 2	2017-10-29 02:05:18
7	Måns Gezelius	0.03 s	Python 2	2018-05-21 16:01:00
8	Christian Vestergaard	0.03 s	Python 2	2018-08-04 17:19:21
9	Arne Tobias Malkenes Ødegaard	0.03 s	Python 2	2018-10-02 18:11:39
10	AMHAOUCH Younes	0.03 s	Python 2	2019-09-15 11:49:35

#	User	Runtime	Language	Date
1	Weijie Sun	0.02 s	Python 3	2016-03-12 05:50:12
2	Marlos C. Machado	0.02 s	Python 3	2016-03-21 03:32:51
3	Isaac Lee	0.02 s	Python 3	2016-03-31 01:39:10
4	Alva Engström	0.02 s	Python 3	2016-05-13 12:44:32
5	Linus Eklund	0.02 s	Python 3	2016-05-18 23:59:06
6	Lida Wang	0.02 s	Python 3	2016-05-20 15:56:38
7	Christian Lindeström	0.02 s	Python 3	2016-09-03 18:00:13
8	Michael Hoffmann	0.02 s	Python 3	2016-11-05 16:50:24
9	Lars Åström	0.02 s	Python 3	2017-12-07 21:31:46
10	Joseph Campbell	0.02 s	Python 3	2018-04-03 00:29:07

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-08-07 13:12:49

#	User	Runtime	Language	Date
1	Davíð Helgason	0.00 s	Rust	2020-03-11 15:22:30

#	User	Length	Language	Date
1	Thomas Feld	49	APL	2023-08-07 13:23:55

#	User	Length	Language	Date
1	Chenzhang Hu	58	Bash	2025-09-12 16:20:56

#	User	Length	Language	Date
1	Fredrik Atmer	269	C	2011-09-08 10:50:03
2	Hidden user	278	C	2015-11-29 00:20:24
3	Per Olofsson	345	C	2010-05-19 16:32:10
4	Kalle Arvidsson	454	C	2010-05-19 16:35:02
5	Anatole HAGBE	479	C	2018-11-10 15:29:27
6	Arup Ratan Guha	505	C	2021-03-03 03:57:58
7	Oskar Werkelin Ahlin	520	C	2010-12-31 11:16:30
8	o taha	634	C	2019-12-27 16:18:24
9	Oumaima AHMINI	634	C	2019-12-27 16:19:33
10	Hidden user	665	C	2016-11-24 01:16:37

#	User	Length	Language	Date
1	traxex	290	C#	2024-05-08 13:02:22
2	Akib Ibn Zahid	1063	C#	2025-11-19 10:53:02
3	Nop Nop	1144	C#	2020-02-09 13:58:22
4	Abdellatif Elyoussefy	1144	C#	2020-02-09 14:52:39

#	User	Length	Language	Date
1	Ludo Pulles	281	C++	2018-11-11 23:14:50
2	Tú Anh	292	C++	2016-10-18 09:52:43
3	Eric Hu	305	C++	2019-09-02 01:25:43
4	Khang Xuân Võ	310	C++	2016-09-23 12:49:13
5	Simone Moretti	311	C++	2021-05-11 16:11:44
6	Chuck Fernández	313	C++	2016-05-27 22:50:21
7	Lloyd Chou	313	C++	2020-06-05 09:53:12
8	Abu shahadat Rabbi	331	C++	2022-12-05 09:19:13
9	Orville Davis	333	C++	2019-11-08 21:41:51
10	Nikola Katov	343	C++	2023-11-23 04:55:46

#	User	Length	Language	Date
1	Joakim Blikstad	296	Haskell	2017-08-25 21:01:55
2	Ghaith Abou Dan	426	Haskell	2021-02-27 11:23:36
3	Brent Yorgey	1272	Haskell	2018-06-04 05:43:52
4	Juan Miguel Vilar	3945	Haskell	2021-02-14 17:19:07

#	User	Length	Language	Date
1	Nhat-Tam Nguyen	438	Java	2021-04-10 21:12:25
2	Doug Goodman	460	Java	2017-09-30 19:29:52
3	James Black	461	Java	2016-04-01 04:53:17
4	Kevin Xu	470	Java	2021-04-10 21:17:58
5	Mouhssine Assaoud	472	Java	2016-12-10 18:44:59
6	Audrey Wang	491	Java	2017-04-08 04:19:37
7	Audrey Wang	491	Java	2017-04-08 04:20:30
8	Ada Clevinger	532	Java	2018-10-06 21:22:52
9	Finn Lidbetter	554	Java	2016-03-31 00:49:29
10	Josh Henderson	579	Java	2022-09-17 05:58:46

#	User	Length	Language	Date
1	Emil Clemedson	614	JavaScript (Node.js)	2021-08-13 08:56:14
2	Minh Trang Nguyen	1112	JavaScript (Node.js)	2025-11-17 21:43:34

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	2172	JavaScript (SpiderMonkey)	2023-08-15 16:35:38
2	Bjørn Chr. Soltvedt	59727	JavaScript (SpiderMonkey)	2016-02-21 13:51:31

#	User	Length	Language	Date
1	Timothy Gaede	844	Julia	2024-08-23 07:54:35

#	User	Length	Language	Date
1	Adam Rankin	416	Kotlin	2023-05-12 01:56:17
2	Phường Lên	817	Kotlin	2020-03-08 02:03:54
3	Hidden user	934	Kotlin	2020-03-09 09:58:02
4	Sam Keyser	1013	Kotlin	2022-05-21 02:53:13

#	User	Length	Language	Date
1	David Connolly	1537	Pascal	2021-11-29 14:10:42

#	User	Length	Language	Date
1	Saginaw George	671	PHP	2021-01-03 02:49:11

#	User	Length	Language	Date
1	Andriy Zyevakov	514	Prolog	2019-06-25 18:36:44

#	User	Length	Language	Date
1	Tomoyuki Kaneko	229	Python 2	2016-04-30 06:12:28
2	AMHAOUCH Younes	239	Python 2	2019-09-15 11:49:35
3	Måns Gezelius	275	Python 2	2018-05-21 16:01:00
4	Weijie Sun	403	Python 2	2016-03-09 23:37:07
5	Josenildo Silva	411	Python 2	2017-04-09 18:41:34
6	Andreas Björklund	415	Python 2	2020-11-21 11:37:02
7	Greg Hamerly	431	Python 2	2015-12-17 20:16:37
8	Ásmundur Óskar Ásmundsson	515	Python 2	2019-11-18 03:30:59
9	Ram Basnet	562	Python 2	2020-03-23 20:53:46
10	Christian Vestergaard	573	Python 2	2018-08-04 17:19:21

#	User	Length	Language	Date
1	Peter Stauder	104	Python 3	2024-03-02 21:19:19
2	Hidden user	120	Python 3	2023-09-13 22:58:34
3	Ahmed Chamseddine	132	Python 3	2026-03-11 16:04:43
4	Oskar Haarklou Veileborg	166	Python 3	2020-05-07 15:52:39
5	Hidden user	188	Python 3	2023-02-13 01:00:38
6	Hrant Hovhannisyan	197	Python 3	2026-02-12 06:05:45
7	Rafael Kristoforus Yanto	198	Python 3	2025-02-04 23:07:01
8	Chung Yan Chow	204	Python 3	2026-03-09 04:35:51
9	Tal Sharoni	219	Python 3	2023-11-23 21:41:49
10	Hussin Suleiman	224	Python 3	2025-12-26 20:35:14

#	User	Length	Language	Date
1	Thomas Feld	43	Ruby	2025-10-15 11:38:25

#	User	Length	Language	Date
1	Davíð Helgason	9865	Rust	2020-03-11 15:22:30

Solution running time distribution