Problem A
Virus Replication — Problem Statistics

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Submissions	9713
Accepted submissions	2448
Submission ratio	25.20%
Authors	2164
Full solves [?]	1816
Full solve Ratio	83.92%

#	User	Runtime	Language	Date
1	Max NC	0.04 s	APL	2023-09-12 18:48:17

#	User	Runtime	Language	Date
1	Bas te Kolste	0.02 s	C#	2013-10-05 14:05:30
2	Reiben	0.02 s	C#	2013-10-14 22:55:08
3	grabarz	0.02 s	C#	2014-09-21 10:42:30
4	Hafdís Erla	0.02 s	C#	2014-09-30 22:05:16
5	r0x3r	0.02 s	C#	2014-10-01 23:36:28
6	masosz	0.02 s	C#	2015-03-16 21:42:19
7	Андрей Титов	0.02 s	C#	2016-01-25 07:52:48
8	Nguyễn Thị Thùy Dung	0.02 s	C#	2016-07-25 08:37:37
9	Hidden user	0.02 s	C#	2016-07-25 16:03:53
10	Utku Yurter	0.02 s	C#	2016-10-02 23:27:21

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	D	2025-08-15 18:28:26

#	User	Runtime	Language	Date
1	Mads Jespersen	0.10 s	F#	2020-03-08 01:55:57
2	Jesper Bengtson	0.12 s	F#	2025-02-07 17:20:15
3	Hjalte Sorgenfrei Mac Dalland	0.34 s	F#	2020-03-06 15:46:38

#	User	Runtime	Language	Date
1	Ronas Jacob Coban Olsen	0.00 s	Go	2025-02-07 18:43:25
2	Logan Travis	0.00 s	Go	2025-09-20 05:50:49
3	Norbert Voelker	0.08 s	Go	2022-02-11 19:28:17
4	Việt Hà Nguyễn	0.09 s	Go	2016-07-24 05:42:54
5	Hidden user	0.09 s	Go	2016-07-27 05:14:42
6	Jonas Mittnacht	0.22 s	Go	2024-02-10 17:59:24

#	User	Runtime	Language	Date
1	Md Akif Chowdhury	0.00 s	Haskell	2022-09-22 06:07:55
2	Abel Martin	0.03 s	Haskell	2017-03-12 12:35:11
3	Mikail Khan	0.03 s	Haskell	2022-02-06 23:26:47
4	Sebastian Banert	0.03 s	Haskell	2023-09-12 17:36:30
5	David Spies	0.04 s	Haskell	2014-12-10 06:01:49
6	Lars Corbijn	0.04 s	Haskell	2018-10-27 20:31:02

#	User	Runtime	Language	Date
1	Alvin Lee	0.06 s	Java	2025-09-04 04:05:45
2	Andreas Köhler	0.06 s	Java	2026-03-02 11:41:06
3	Andreas Oppebøen	0.07 s	Java	2013-10-07 04:57:50
4	Viktor Lindberg	0.07 s	Java	2014-08-30 02:18:01
5	Mohamed Mehany	0.07 s	Java	2015-05-30 15:17:03
6	Victor Sui	0.07 s	Java	2015-11-28 04:06:01
7	Omar Kojak	0.07 s	Java	2016-09-10 23:32:35
8	Mohamed El Zarei	0.07 s	Java	2016-09-10 23:50:25
9	Kurtis Van Gent	0.07 s	Java	2016-10-14 14:40:35
10	Martijn Muijsers	0.07 s	Java	2016-11-11 13:46:13

#	User	Runtime	Language	Date
1	Calvin Reibenspieß	0.06 s	JavaScript (Node.js)	2024-01-20 08:50:48
2	Stephanie Keck	0.42 s	JavaScript (Node.js)	2020-02-19 03:35:56
3	Ricardo	0.44 s	JavaScript (Node.js)	2020-10-24 10:48:41

#	User	Runtime	Language	Date
1	Arend van Erk	0.01 s	JavaScript (SpiderMonkey)	2016-04-06 11:25:53
2	David Trång	0.02 s	JavaScript (SpiderMonkey)	2018-04-09 11:48:30
3	Linus Berglund	0.02 s	JavaScript (SpiderMonkey)	2018-05-17 15:07:37
4	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2023-07-28 08:41:43
5	Nina Ma	0.03 s	JavaScript (SpiderMonkey)	2017-10-15 21:17:08
6	Christopher Walther	0.03 s	JavaScript (SpiderMonkey)	2021-05-07 15:05:58
7	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-06-29 22:42:34

#	User	Runtime	Language	Date
1	Björn Holm	0.16 s	Kotlin	2018-10-16 01:34:24
2	Nicholas Johnson	0.19 s	Kotlin	2022-05-27 16:07:20
3	Adam Rankin	0.24 s	Kotlin	2023-09-05 06:42:09
4	Thore Husfeldt	0.28 s	Kotlin	2020-11-03 19:39:52
5	Hidden user	0.34 s	Kotlin	2019-11-07 01:21:13

#	User	Runtime	Language	Date
1	Renate Fiala-Lundström	0.33 s	PHP	2022-08-13 23:22:43

#	User	Runtime	Language	Date
1	Martin Vonheim Larsen	0.03 s	Python 2	2014-06-13 12:52:18
2	Torbjørn Stanghelle Morland	0.03 s	Python 2	2014-09-30 15:04:29
3	Linus Ländin	0.03 s	Python 2	2014-10-01 13:24:33
4	Todd Perry	0.03 s	Python 2	2014-10-01 17:15:38
5	Mohamed Badawy	0.03 s	Python 2	2015-08-30 21:57:09
6	Daniel Palmqvist	0.03 s	Python 2	2015-09-07 18:14:17
7	Trevor Masters	0.03 s	Python 2	2015-09-21 21:26:47
8	Paige Vosmik	0.03 s	Python 2	2015-09-21 21:48:34
9	Kai Alexander Wig	0.03 s	Python 2	2016-03-16 15:55:14
10	Charlotte Ding	0.03 s	Python 2	2016-10-02 02:53:54

#	User	Runtime	Language	Date
1	Trung Nguyen	0.02 s	Python 3	2016-11-03 02:10:22
2	Duc Le	0.03 s	Python 3	2016-11-07 07:13:07
3	Gal Zakrajsek	0.03 s	Python 3	2018-05-09 23:12:49
4	Cowan Krishna DeLeon	0.03 s	Python 3	2019-10-26 12:52:39
5	Nathaniel Holeksa	0.03 s	Python 3	2019-10-28 01:11:34
6	Hidden user	0.04 s	Python 3	2014-10-02 13:37:15
7	Charles Zinn	0.04 s	Python 3	2015-10-18 19:32:54
8	Illya Starikov	0.04 s	Python 3	2017-02-23 07:46:14
9	Björn Magnusson	0.04 s	Python 3	2017-05-10 12:00:16
10	Arjun Blum	0.04 s	Python 3	2018-02-21 03:24:26

#	User	Runtime	Language	Date
1	Casper Christensen	0.07 s	Ruby	2016-01-21 23:34:07
2	John Bowers	0.07 s	Ruby	2018-03-27 22:29:27
3	Hidden user	0.07 s	Ruby	2018-03-28 22:18:06
4	Jason Zareski	0.07 s	Ruby	2018-03-28 22:20:58
5	Byron Ethelbert Nill	0.08 s	Ruby	2019-10-12 12:18:45
6	Byron Ethelbert Nill	0.08 s	Ruby	2019-10-12 12:19:04
7	Gwyneth Ang	0.08 s	Ruby	2019-10-12 14:11:37
8	MHD SAMI ALMOUHTASEB	0.09 s	Ruby	2018-07-11 09:22:57
9	Thomas Feld	0.09 s	Ruby	2023-05-03 13:12:18

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2020-02-07 16:33:06
2	Muhammad Rais Fathin Mudzakir	0.00 s	Rust	2021-05-15 22:31:59
3	Bas Dirks	0.00 s	Rust	2022-02-04 10:45:11
4	Judith Hemp	0.00 s	Rust	2022-03-21 10:03:15
5	Artur Khuziakhmetov	0.00 s	Rust	2022-07-22 13:57:26
6	Akemi Izuko	0.00 s	Rust	2022-09-22 02:43:28
7	Vincent Lagerros	0.00 s	Rust	2024-12-04 17:14:51
8	Egor Kulikov	0.00 s	Rust	2025-02-06 12:29:40
9	Krish Lal	0.00 s	Rust	2025-09-18 08:33:58
10	Joe Blower	0.00 s	Rust	2025-12-24 03:17:32

#	User	Length	Language	Date
1	Max NC	139	APL	2023-09-12 18:48:17

#	User	Length	Language	Date
1	Mirel Cosulschi	492	C	2024-10-28 17:41:26
2	Ivan Petrov	512	C	2019-07-09 09:49:51
3	Fraser Lee	544	C	2022-03-05 17:57:00
4	Volker Schmidt	567	C	2022-02-19 23:31:25
5	陳重諺	575	C	2021-02-07 20:56:11
6	Noah Goldsmid	583	C	2015-11-12 20:10:39
7	Josenildo Silva	584	C	2016-11-16 00:30:52
8	Wael Al Saeed	589	C	2014-10-02 14:03:52
9	Yang Chenglong	594	C	2019-01-27 14:18:09
10	Dominik Stolz	665	C	2019-10-26 00:14:01

#	User	Length	Language	Date
1	traxex	352	C#	2024-05-06 18:09:04
2	Hidden user	483	C#	2026-02-10 09:34:11
3	Lukas P.	718	C#	2026-03-05 22:18:52
4	r0x3r	761	C#	2014-10-01 23:36:28
5	Nathan Andrews	779	C#	2024-10-11 23:15:17
6	Mike Garrett	874	C#	2019-03-28 16:31:59
7	Andrei Cosovan	931	C#	2026-02-06 19:48:37
8	Johan Fernström	1035	C#	2018-05-12 17:32:37
9	Hidden user	1162	C#	2016-07-25 16:03:53
10	Nguyễn Thị Thùy Dung	1164	C#	2016-07-25 08:37:37

#	User	Length	Language	Date
1	Matthew Tran	275	C++	2020-02-18 02:39:33
2	Rahat Kumar	305	C++	2017-06-13 17:21:24
3	Reginald Frank	308	C++	2019-04-24 01:30:20
4	Leo Lee	311	C++	2024-08-28 01:24:48
5	Dario Petrillo	313	C++	2022-03-23 21:30:15
6	bekarhunmain	320	C++	2024-07-06 08:50:16
7	Jonathon Arbaugh	334	C++	2017-04-29 20:16:51
8	Scott MacIntosh	339	C++	2020-05-22 01:45:14
9	Emmanuel Anaya	340	C++	2020-10-30 05:59:50
10	Kexuan Miao	340	C++	2023-09-30 18:46:01

#	User	Length	Language	Date
1	Hidden user	345	D	2025-08-15 18:28:26

#	User	Length	Language	Date
1	Mads Jespersen	955	F#	2020-03-08 01:55:57
2	Hjalte Sorgenfrei Mac Dalland	1266	F#	2020-03-06 15:46:38
3	Jesper Bengtson	2208	F#	2025-02-07 17:20:15

#	User	Length	Language	Date
1	Jonas Mittnacht	535	Go	2024-02-10 17:59:24
2	Việt Hà Nguyễn	748	Go	2016-07-24 05:42:54
3	Ronas Jacob Coban Olsen	978	Go	2025-02-07 18:43:25
4	Hidden user	1188	Go	2016-07-27 05:14:42
5	Logan Travis	1321	Go	2025-09-20 05:53:33
6	Norbert Voelker	1325	Go	2022-02-11 19:28:17

#	User	Length	Language	Date
1	Sebastian Banert	198	Haskell	2023-09-12 17:58:30
2	Lars Corbijn	377	Haskell	2018-10-27 20:31:02
3	Mikail Khan	448	Haskell	2022-02-06 23:26:47
4	David Spies	458	Haskell	2014-12-10 06:01:49
5	Abel Martin	722	Haskell	2017-03-12 12:35:11
6	Md Akif Chowdhury	1255	Haskell	2022-09-22 06:07:55

#	User	Length	Language	Date
1	Måns Magnusson	517	Java	2015-10-18 23:24:55
2	Ajay Jadhav	529	Java	2020-01-15 12:15:53
3	Kurtis Van Gent	533	Java	2016-10-14 14:40:35
4	Nicholas Rupert Custodio	535	Java	2019-10-16 13:27:17
5	Melanie Kirsche	568	Java	2014-09-30 23:06:21
6	Doug Goodman	571	Java	2016-10-15 16:35:58
7	Duncan Page	585	Java	2018-01-22 23:50:53
8	Rawaz Rahim	586	Java	2018-03-31 01:59:47
9	Jasper Tan	593	Java	2019-10-18 17:20:28
10	Andreas Oppebøen	607	Java	2013-10-07 04:57:50

#	User	Length	Language	Date
1	Ricardo	791	JavaScript (Node.js)	2020-10-24 10:48:41
2	Calvin Reibenspieß	938	JavaScript (Node.js)	2024-01-20 08:50:48
3	Stephanie Keck	5459	JavaScript (Node.js)	2020-02-19 03:35:56

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	240	JavaScript (SpiderMonkey)	2023-07-28 08:41:43
2	David Trång	503	JavaScript (SpiderMonkey)	2018-04-09 11:48:30
3	Christian Pilegaard Cederquist	511	JavaScript (SpiderMonkey)	2023-06-29 22:42:34
4	Nina Ma	570	JavaScript (SpiderMonkey)	2017-10-15 21:17:08
5	Arend van Erk	632	JavaScript (SpiderMonkey)	2016-04-06 11:25:53
6	Christopher Walther	862	JavaScript (SpiderMonkey)	2021-05-07 15:05:58
7	Linus Berglund	922	JavaScript (SpiderMonkey)	2018-05-17 15:07:37

#	User	Length	Language	Date
1	Thore Husfeldt	378	Kotlin	2020-11-03 19:39:52
2	Adam Rankin	482	Kotlin	2023-09-05 06:42:09
3	Nicholas Johnson	700	Kotlin	2022-05-27 16:07:20
4	Hidden user	994	Kotlin	2019-11-07 01:21:13
5	Björn Holm	2029	Kotlin	2018-10-16 01:34:24

#	User	Length	Language	Date
1	Renate Fiala-Lundström	546	PHP	2022-08-13 23:22:43

#	User	Length	Language	Date
1	Thomas Feld	207	Python 2	2020-06-23 11:55:51
2	Andreas Björklund	254	Python 2	2020-03-11 20:01:09
3	Ciara Godwin	262	Python 2	2018-04-25 11:15:54
4	Torbjørn Stanghelle Morland	272	Python 2	2014-09-30 15:04:29
5	Jesper Öqvist	310	Python 2	2019-09-25 18:31:37
6	Mohamed Badawy	316	Python 2	2015-08-30 21:57:09
7	Björn Magnusson	329	Python 2	2020-11-03 18:34:16
8	c3278936@trbvn.com	360	Python 2	2016-06-01 11:30:50
9	Daniel Palmqvist	361	Python 2	2015-09-06 09:54:36
10	Kasper Borys	364	Python 2	2017-05-07 04:06:26

#	User	Length	Language	Date
1	Michael Wu	111	Python 3	2025-09-04 05:17:13
2	Nikolaj Munk Binder Jensen	114	Python 3	2025-02-10 15:16:41
3	Kaaden RumanCam	126	Python 3	2023-09-29 00:52:00
4	Harvey Chua	154	Python 3	2023-12-09 17:14:15
5	Peter Stauder	162	Python 3	2023-04-24 20:33:00
6	Andrew Tapia	175	Python 3	2022-11-20 16:17:25
7	Reiden Ong	182	Python 3	2023-07-01 12:03:55
8	Kyle Balian	183	Python 3	2025-11-01 00:28:34
9	Hidden user	185	Python 3	2024-03-16 07:12:18
10	bhavin	186	Python 3	2025-09-05 07:01:23

#	User	Length	Language	Date
1	Thomas Feld	100	Ruby	2023-05-03 13:12:18
2	Byron Ethelbert Nill	239	Ruby	2019-10-12 12:18:45
3	Byron Ethelbert Nill	239	Ruby	2019-10-12 12:19:04
4	Gwyneth Ang	239	Ruby	2019-10-12 14:11:37
5	Hidden user	427	Ruby	2018-03-28 22:18:06
6	Jason Zareski	427	Ruby	2018-03-28 22:20:58
7	John Bowers	433	Ruby	2018-03-27 22:29:27
8	Casper Christensen	460	Ruby	2016-02-01 19:32:01
9	MHD SAMI ALMOUHTASEB	519	Ruby	2018-07-11 09:22:57

#	User	Length	Language	Date
1	Vincent Lagerros	325	Rust	2024-12-04 17:15:37
2	Hidden user	829	Rust	2020-02-07 16:33:06
3	Artur Khuziakhmetov	973	Rust	2022-07-22 13:57:26
4	Judith Hemp	1323	Rust	2022-03-21 10:03:15
5	Krish Lal	1492	Rust	2025-09-18 08:33:58
6	Bas Dirks	1669	Rust	2022-02-04 10:45:11
7	Joe Blower	1929	Rust	2025-12-24 03:17:32
8	Akemi Izuko	1939	Rust	2022-09-22 02:43:28
9	Muhammad Rais Fathin Mudzakir	4369	Rust	2021-05-15 22:31:59
10	Egor Kulikov	21164	Rust	2025-02-06 12:29:40

Solution running time distribution