Problem A
Virus Replication — Problem Statistics

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Submissions	9527
Accepted submissions	2399
Submission ratio	25.18%
Authors	2122
Full solves [?]	1779
Full solve Ratio	83.84%

#	User	Runtime	Language	Date
1	Max NC	0.04 s	APL	2023-09-12 16:48:17

#	User	Runtime	Language	Date
1	Bas te Kolste	0.02 s	C#	2013-10-05 12:05:30
2	Reiben	0.02 s	C#	2013-10-14 20:55:08
3	grabarz	0.02 s	C#	2014-09-21 08:42:30
4	Hafdís Erla	0.02 s	C#	2014-09-30 20:05:16
5	r0x3r	0.02 s	C#	2014-10-01 21:36:28
6	masosz	0.02 s	C#	2015-03-16 20:42:19
7	Андрей Титов	0.02 s	C#	2016-01-25 06:52:48
8	Nguyễn Thị Thùy Dung	0.02 s	C#	2016-07-25 06:37:37
9	Hidden user	0.02 s	C#	2016-07-25 14:03:53
10	Utku Yurter	0.02 s	C#	2016-10-02 21:27:21

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	D	2025-08-15 16:28:26

#	User	Runtime	Language	Date
1	Mads Jespersen	0.10 s	F#	2020-03-08 00:55:57
2	Jesper Bengtson	0.12 s	F#	2025-02-07 16:20:15
3	Hjalte Sorgenfrei Mac Dalland	0.34 s	F#	2020-03-06 14:46:38

#	User	Runtime	Language	Date
1	Ronas Jacob Coban Olsen	0.00 s	Go	2025-02-07 17:43:25
2	Logan Travis	0.00 s	Go	2025-09-20 03:50:49
3	Norbert Voelker	0.08 s	Go	2022-02-11 18:28:17
4	Việt Hà Nguyễn	0.09 s	Go	2016-07-24 03:42:54
5	Hidden user	0.09 s	Go	2016-07-27 03:14:42
6	Jonas Mittnacht	0.22 s	Go	2024-02-10 16:59:24

#	User	Runtime	Language	Date
1	Md Akif Chowdhury	0.00 s	Haskell	2022-09-22 04:07:55
2	Abel Martin	0.03 s	Haskell	2017-03-12 11:35:11
3	Mikail Khan	0.03 s	Haskell	2022-02-06 22:26:47
4	Sebastian Banert	0.03 s	Haskell	2023-09-12 15:36:30
5	David Spies	0.04 s	Haskell	2014-12-10 05:01:49
6	Lars Corbijn	0.04 s	Haskell	2018-10-27 18:31:02

#	User	Runtime	Language	Date
1	Alvin Lee	0.06 s	Java	2025-09-04 02:05:45
2	Andreas Oppebøen	0.07 s	Java	2013-10-07 02:57:50
3	Viktor Lindberg	0.07 s	Java	2014-08-30 00:18:01
4	Mohamed Mehany	0.07 s	Java	2015-05-30 13:17:03
5	Victor Sui	0.07 s	Java	2015-11-28 03:06:01
6	Omar Kojak	0.07 s	Java	2016-09-10 21:32:35
7	Mohamed El Zarei	0.07 s	Java	2016-09-10 21:50:25
8	Kurtis Van Gent	0.07 s	Java	2016-10-14 12:40:35
9	Martijn Muijsers	0.07 s	Java	2016-11-11 12:46:13
10	Kell Skogh	0.07 s	Java	2017-03-02 17:13:32

#	User	Runtime	Language	Date
1	Calvin Reibenspieß	0.06 s	JavaScript (Node.js)	2024-01-20 07:50:48
2	Stephanie Keck	0.42 s	JavaScript (Node.js)	2020-02-19 02:35:56
3	Ricardo	0.44 s	JavaScript (Node.js)	2020-10-24 08:48:41

#	User	Runtime	Language	Date
1	Arend van Erk	0.01 s	JavaScript (SpiderMonkey)	2016-04-06 09:25:53
2	David Trång	0.02 s	JavaScript (SpiderMonkey)	2018-04-09 09:48:30
3	Linus Berglund	0.02 s	JavaScript (SpiderMonkey)	2018-05-17 13:07:37
4	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2023-07-28 06:41:43
5	Nina Ma	0.03 s	JavaScript (SpiderMonkey)	2017-10-15 19:17:08
6	Christopher Walther	0.03 s	JavaScript (SpiderMonkey)	2021-05-07 13:05:58
7	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-06-29 20:42:34

#	User	Runtime	Language	Date
1	Björn Holm	0.16 s	Kotlin	2018-10-15 23:34:24
2	Nicholas Johnson	0.19 s	Kotlin	2022-05-27 14:07:20
3	Adam Rankin	0.24 s	Kotlin	2023-09-05 04:42:09
4	Thore Husfeldt	0.28 s	Kotlin	2020-11-03 18:39:52
5	Hidden user	0.34 s	Kotlin	2019-11-07 00:21:13

#	User	Runtime	Language	Date
1	Renate	0.33 s	PHP	2022-08-13 21:22:43

#	User	Runtime	Language	Date
1	Martin Vonheim Larsen	0.03 s	Python 2	2014-06-13 10:52:18
2	Torbjørn Stanghelle Morland	0.03 s	Python 2	2014-09-30 13:04:29
3	Linus Ländin	0.03 s	Python 2	2014-10-01 11:24:33
4	Todd Perry	0.03 s	Python 2	2014-10-01 15:15:38
5	Mohamed Badawy	0.03 s	Python 2	2015-08-30 19:57:09
6	Daniel Palmqvist	0.03 s	Python 2	2015-09-07 16:14:17
7	Trevor Masters	0.03 s	Python 2	2015-09-21 19:26:47
8	Paige Vosmik	0.03 s	Python 2	2015-09-21 19:48:34
9	Kai Alexander Wig	0.03 s	Python 2	2016-03-16 14:55:14
10	Charlotte Ding	0.03 s	Python 2	2016-10-02 00:53:54

#	User	Runtime	Language	Date
1	Trung Nguyen	0.02 s	Python 3	2016-11-03 01:10:22
2	Duc Le	0.03 s	Python 3	2016-11-07 06:13:07
3	Gal Zakrajsek	0.03 s	Python 3	2018-05-09 21:12:49
4	Cowan Krishna DeLeon	0.03 s	Python 3	2019-10-26 10:52:39
5	Nathaniel Holeksa	0.03 s	Python 3	2019-10-28 00:11:34
6	Hidden user	0.04 s	Python 3	2014-10-02 11:37:15
7	Charles Zinn	0.04 s	Python 3	2015-10-18 17:32:54
8	Illya Starikov	0.04 s	Python 3	2017-02-23 06:46:14
9	Björn Magnusson	0.04 s	Python 3	2017-05-10 10:00:16
10	Arjun Blum	0.04 s	Python 3	2018-02-21 02:24:26

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

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2020-02-07 15:33:06
2	Muhammad Rais Fathin Mudzakir	0.00 s	Rust	2021-05-15 20:31:59
3	Bas Dirks	0.00 s	Rust	2022-02-04 09:45:11
4	Judith Hemp	0.00 s	Rust	2022-03-21 09:03:15
5	Artur Khuziakhmetov	0.00 s	Rust	2022-07-22 11:57:26
6	Akemi Izuko	0.00 s	Rust	2022-09-22 00:43:28
7	Vincent Lagerros	0.00 s	Rust	2024-12-04 16:14:51
8	Egor Kulikov	0.00 s	Rust	2025-02-06 11:29:40
9	Krish Lal	0.00 s	Rust	2025-09-18 06:33:58
10	Joe Blower	0.00 s	Rust	2025-12-24 02:17:32

#	User	Length	Language	Date
1	Max NC	139	APL	2023-09-12 16:48:17

#	User	Length	Language	Date
1	Mirel Cosulschi	492	C	2024-10-28 16:41:26
2	Ivan Petrov	512	C	2019-07-09 07:49:51
3	Fraser Lee	544	C	2022-03-05 16:57:00
4	Volker Schmidt	567	C	2022-02-19 22:31:25
5	陳重諺	575	C	2021-02-07 19:56:11
6	Noah Goldsmid	583	C	2015-11-12 19:10:39
7	Josenildo Silva	584	C	2016-11-15 23:30:52
8	Wael Al Saeed	589	C	2014-10-02 12:03:52
9	Yang Chenglong	594	C	2019-01-27 13:18:09
10	Dominik Stolz	665	C	2019-10-25 22:14:01

#	User	Length	Language	Date
1	traxex	352	C#	2024-05-06 16:09:04
2	r0x3r	761	C#	2014-10-01 21:36:28
3	Nathan Andrews	779	C#	2024-10-11 21:15:17
4	Mike Garrett	874	C#	2019-03-28 15:31:59
5	Johan Fernström	1035	C#	2018-05-12 15:32:37
6	Hidden user	1162	C#	2016-07-25 14:03:53
7	Nguyễn Thị Thùy Dung	1164	C#	2016-07-25 06:37:37
8	Hafdís Erla	1236	C#	2014-09-30 20:05:16
9	Jonas Jämtberg	1294	C#	2018-05-17 07:18:29
10	Pelle	1325	C#	2018-05-18 23:10:04

#	User	Length	Language	Date
1	Matthew Tran	275	C++	2020-02-18 01:39:33
2	Rahat Kumar	305	C++	2017-06-13 15:21:24
3	Reginald Frank	308	C++	2019-04-23 23:30:20
4	Leo Lee	311	C++	2024-08-27 23:24:48
5	Dario Petrillo	313	C++	2022-03-23 20:30:15
6	bekarhunmain	320	C++	2024-07-06 06:50:16
7	Jonathon Arbaugh	334	C++	2017-04-29 18:16:51
8	Scott MacIntosh	339	C++	2020-05-21 23:45:14
9	Emmanuel Anaya	340	C++	2020-10-30 04:59:50
10	Kexuan Miao	340	C++	2023-09-30 16:46:01

#	User	Length	Language	Date
1	Hidden user	345	D	2025-08-15 16:28:26

#	User	Length	Language	Date
1	Mads Jespersen	955	F#	2020-03-08 00:55:57
2	Hjalte Sorgenfrei Mac Dalland	1266	F#	2020-03-06 14:46:38
3	Jesper Bengtson	2208	F#	2025-02-07 16:20:15

#	User	Length	Language	Date
1	Jonas Mittnacht	535	Go	2024-02-10 16:59:24
2	Việt Hà Nguyễn	748	Go	2016-07-24 03:42:54
3	Ronas Jacob Coban Olsen	978	Go	2025-02-07 17:43:25
4	Hidden user	1188	Go	2016-07-27 03:14:42
5	Logan Travis	1321	Go	2025-09-20 03:53:33
6	Norbert Voelker	1325	Go	2022-02-11 18:28:17

#	User	Length	Language	Date
1	Sebastian Banert	198	Haskell	2023-09-12 15:58:30
2	Lars Corbijn	377	Haskell	2018-10-27 18:31:02
3	Mikail Khan	448	Haskell	2022-02-06 22:26:47
4	David Spies	458	Haskell	2014-12-10 05:01:49
5	Abel Martin	722	Haskell	2017-03-12 11:35:11
6	Md Akif Chowdhury	1255	Haskell	2022-09-22 04:07:55

#	User	Length	Language	Date
1	Måns Magnusson	517	Java	2015-10-18 21:24:55
2	Ajay Jadhav	529	Java	2020-01-15 11:15:53
3	Kurtis Van Gent	533	Java	2016-10-14 12:40:35
4	Nicholas Rupert Custodio	535	Java	2019-10-16 11:27:17
5	Melanie Kirsche	568	Java	2014-09-30 21:06:21
6	Doug Goodman	571	Java	2016-10-15 14:35:58
7	Duncan Page	585	Java	2018-01-22 22:50:53
8	Rawaz Rahim	586	Java	2018-03-30 23:59:47
9	Jasper Tan	593	Java	2019-10-18 15:20:28
10	Andreas Oppebøen	607	Java	2013-10-07 02:57:50

#	User	Length	Language	Date
1	Ricardo	791	JavaScript (Node.js)	2020-10-24 08:48:41
2	Calvin Reibenspieß	938	JavaScript (Node.js)	2024-01-20 07:50:48
3	Stephanie Keck	5459	JavaScript (Node.js)	2020-02-19 02:35:56

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	240	JavaScript (SpiderMonkey)	2023-07-28 06:41:43
2	David Trång	503	JavaScript (SpiderMonkey)	2018-04-09 09:48:30
3	Christian Pilegaard Cederquist	511	JavaScript (SpiderMonkey)	2023-06-29 20:42:34
4	Nina Ma	570	JavaScript (SpiderMonkey)	2017-10-15 19:17:08
5	Arend van Erk	632	JavaScript (SpiderMonkey)	2016-04-06 09:25:53
6	Christopher Walther	862	JavaScript (SpiderMonkey)	2021-05-07 13:05:58
7	Linus Berglund	922	JavaScript (SpiderMonkey)	2018-05-17 13:07:37

#	User	Length	Language	Date
1	Thore Husfeldt	378	Kotlin	2020-11-03 18:39:52
2	Adam Rankin	482	Kotlin	2023-09-05 04:42:09
3	Nicholas Johnson	700	Kotlin	2022-05-27 14:07:20
4	Hidden user	994	Kotlin	2019-11-07 00:21:13
5	Björn Holm	2029	Kotlin	2018-10-15 23:34:24

#	User	Length	Language	Date
1	Renate	546	PHP	2022-08-13 21:22:43

#	User	Length	Language	Date
1	Thomas Feld	207	Python 2	2020-06-23 09:55:51
2	Andreas Björklund	254	Python 2	2020-03-11 19:01:09
3	Ciara Godwin	262	Python 2	2018-04-25 09:15:54
4	Torbjørn Stanghelle Morland	272	Python 2	2014-09-30 13:04:29
5	Jesper Öqvist	310	Python 2	2019-09-25 16:31:37
6	Mohamed Badawy	316	Python 2	2015-08-30 19:57:09
7	Björn Magnusson	329	Python 2	2020-11-03 17:34:16
8	c3278936@trbvn.com	360	Python 2	2016-06-01 09:30:50
9	Daniel Palmqvist	361	Python 2	2015-09-06 07:54:36
10	Kasper Borys	364	Python 2	2017-05-07 02:06:26

#	User	Length	Language	Date
1	Michael Wu	111	Python 3	2025-09-04 03:17:13
2	Nikolaj Munk Binder Jensen	114	Python 3	2025-02-10 14:16:41
3	Kaaden RumanCam	126	Python 3	2023-09-28 22:52:00
4	Harvey Chua	154	Python 3	2023-12-09 16:14:15
5	Peter Stauder	162	Python 3	2023-04-24 18:33:00
6	Andrew Tapia	175	Python 3	2022-11-20 15:17:25
7	Reiden Ong	182	Python 3	2023-07-01 10:03:55
8	Kyle Balian	183	Python 3	2025-10-31 23:28:34
9	Hidden user	185	Python 3	2024-03-16 06:12:18
10	bhavin	186	Python 3	2025-09-05 05:01:23

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

#	User	Length	Language	Date
1	Vincent Lagerros	325	Rust	2024-12-04 16:15:37
2	Hidden user	829	Rust	2020-02-07 15:33:06
3	Artur Khuziakhmetov	973	Rust	2022-07-22 11:57:26
4	Judith Hemp	1323	Rust	2022-03-21 09:03:15
5	Krish Lal	1492	Rust	2025-09-18 06:33:58
6	Bas Dirks	1669	Rust	2022-02-04 09:45:11
7	Joe Blower	1929	Rust	2025-12-24 02:17:32
8	Akemi Izuko	1939	Rust	2022-09-22 00:43:28
9	Muhammad Rais Fathin Mudzakir	4369	Rust	2021-05-15 20:31:59
10	Egor Kulikov	21164	Rust	2025-02-06 11:29:40

Solution running time distribution