Problem U
DRM Messages — Problem Statistics

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Submissions	6366
Accepted submissions	4143
Submission ratio	65.08%
Authors	3910
Accepted authors	3722
Author ratio	95.19%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.09 s	Bash	2024-04-16 16:52:18

#	User	Runtime	Language	Date
1	Pontus Eriksson	0.01 s	C#	2017-10-29 01:14:16
2	Faisal Rahman	0.01 s	C#	2017-11-01 17:04:10
3	Klas af Geijerstam	0.02 s	C#	2017-11-01 09:00:52
4	Johan Pettersson	0.02 s	C#	2017-11-19 08:28:43
5	Andriy Zyevakov	0.02 s	C#	2017-12-13 15:05:21
6	Andreas Ljungberg	0.02 s	C#	2017-12-16 18:31:37
7	Hidden user	0.02 s	C#	2018-01-29 17:38:05
8	Kunwei Zhang	0.02 s	C#	2018-02-05 02:44:22
9	Alex Telon	0.02 s	C#	2018-02-09 20:54:14
10	John Ladera	0.02 s	C#	2018-03-19 03:05:56

#	User	Runtime	Language	Date
1	David Cawthon	0.03 s	Common Lisp	2019-04-27 02:38:30
2	Nicholas Lantz	0.03 s	Common Lisp	2019-04-27 23:53:26
3	Hidden user	0.03 s	Common Lisp	2019-05-24 07:38:16

#	User	Runtime	Language	Date
1	David Vinje	0.03 s	F#	2022-08-02 16:20:26
2	Jacob Harris Cryer Kragh	0.04 s	F#	2022-05-29 18:43:47

#	User	Runtime	Language	Date
1	Benjamin Michailov	0.02 s	Go	2024-10-04 19:49:04
2	Akhikumar Indurti	0.07 s	Go	2018-10-11 02:25:02
3	Kellen Watt	0.07 s	Go	2018-11-27 20:42:49
4	Fikri Sundayana	0.07 s	Go	2019-02-16 19:03:41
5	Dick Appel	0.08 s	Go	2019-09-10 21:09:27
6	Norbert Voelker	0.08 s	Go	2021-04-09 22:17:57
7	dick move	0.08 s	Go	2021-05-30 20:29:47
8	Aleksandar Vorkapic	0.09 s	Go	2018-03-11 16:44:33
9	Jimmy Nejtron	0.10 s	Go	2019-08-22 11:06:42
10	Gustav Eiman	0.10 s	Go	2019-08-26 11:23:57

#	User	Runtime	Language	Date
1	Simen Endsjø	0.00 s	Haskell	2017-11-09 17:13:10
2	Aditya Durvasula	0.00 s	Haskell	2018-01-22 05:28:11
3	Isidro Matos Bellido	0.00 s	Haskell	2018-04-05 11:36:59
4	Daniel German	0.00 s	Haskell	2018-05-27 11:52:23
5	Brent Yorgey	0.01 s	Haskell	2017-10-28 19:59:06
6	Olle Eriksson	0.01 s	Haskell	2017-11-09 12:43:38
7	Luis Holanda	0.01 s	Haskell	2017-11-10 02:58:00
8	Matthew Johnson	0.01 s	Haskell	2017-12-14 05:00:57
9	Jonas Mossin Wagle	0.01 s	Haskell	2018-02-12 16:35:37
10	Håkon Flatval	0.01 s	Haskell	2018-06-12 16:17:03

#	User	Runtime	Language	Date
1	Micah Stairs	0.05 s	Java	2017-11-01 01:20:48
2	Krystian Wojcicki	0.05 s	Java	2017-11-05 05:48:56
3	Liam Keliher	0.05 s	Java	2017-11-24 03:01:02
4	Love Engman	0.05 s	Java	2018-01-13 11:35:24
5	Roberto Solis Robles	0.05 s	Java	2018-02-16 18:44:53
6	Martijn Muijsers	0.05 s	Java	2018-03-24 21:18:53
7	Hidden user	0.05 s	Java	2018-03-27 21:49:26
8	Benjamin Melone	0.05 s	Java	2018-03-30 04:25:57
9	José Vander Meulen	0.05 s	Java	2018-10-02 14:47:29
10	Castel Christopher	0.05 s	Java	2018-10-02 20:48:51

#	User	Runtime	Language	Date
1	Yassin Swag	0.05 s	JavaScript (Node.js)	2023-12-02 14:37:53
2	Earth - Agario	0.05 s	JavaScript (Node.js)	2023-12-13 18:42:42
3	Hidden user	0.05 s	JavaScript (Node.js)	2024-07-12 04:55:21
4	Dalton Neely	0.06 s	JavaScript (Node.js)	2018-07-09 09:22:41
5	Carl Sundvall	0.06 s	JavaScript (Node.js)	2018-10-27 15:13:51
6	Alex Comas	0.06 s	JavaScript (Node.js)	2018-11-10 18:59:49
7	Gurpartap Singh Bhatti	0.06 s	JavaScript (Node.js)	2019-02-14 09:11:50
8	Tomáš Necky Necuda	0.06 s	JavaScript (Node.js)	2019-02-15 09:28:21
9	José Lucas	0.06 s	JavaScript (Node.js)	2019-03-10 07:35:14
10	Hidden user	0.06 s	JavaScript (Node.js)	2019-03-22 01:02:49

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2017-10-29 23:26:03
2	Martin Jay	0.01 s	JavaScript (SpiderMonkey)	2017-11-01 00:41:48
3	Robin Livesey	0.01 s	JavaScript (SpiderMonkey)	2018-04-15 11:15:09
4	Nicklas Utgaard	0.02 s	JavaScript (SpiderMonkey)	2017-11-24 18:08:15
5	Michael Hjortholt	0.02 s	JavaScript (SpiderMonkey)	2018-07-10 14:02:28
6	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2022-08-15 14:13:24
7	Michael Zetterholm	0.03 s	JavaScript (SpiderMonkey)	2018-02-16 14:28:56
8	Jeremy Loh	0.03 s	JavaScript (SpiderMonkey)	2019-01-05 07:07:05
9	Bernard Perrin	0.03 s	JavaScript (SpiderMonkey)	2019-01-22 02:34:20
10	Tor Skude	0.03 s	JavaScript (SpiderMonkey)	2019-05-13 14:58:41

#	User	Runtime	Language	Date
1	Danny Robinson	0.65 s	Julia	2023-06-21 23:47:33
2	Timothy Gaede	0.94 s	Julia	2024-03-20 04:16:39

#	User	Runtime	Language	Date
1	Jacob Huebner	0.15 s	Kotlin	2021-04-13 02:49:21
2	Kiel Dowdle	0.16 s	Kotlin	2021-04-14 03:26:33
3	Nicholas Johnson	0.18 s	Kotlin	2021-04-14 03:46:50
4	Zhengqing Ye	0.19 s	Kotlin	2018-10-13 19:43:08
5	Vegard Veiset	0.20 s	Kotlin	2017-11-09 19:28:45
6	Neil Harmon	0.21 s	Kotlin	2019-04-03 11:40:33
7	Adam Rankin	0.23 s	Kotlin	2023-05-04 07:32:59
8	Marit van Dijk	0.26 s	Kotlin	2019-02-05 20:46:04
9	Dan Yang	0.26 s	Kotlin	2019-02-19 02:13:05
10	Jonathan Soo	0.28 s	Kotlin	2019-06-21 04:09:17

#	User	Runtime	Language	Date
1	Pamidimarri Reshwanth	0.00 s	Objective-C	2020-08-21 07:38:37
2	Katamreddy Kamalesh Reddy	0.00 s	Objective-C	2020-08-21 13:56:27

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	0.01 s	OCaml	2021-01-20 12:58:07
2	Hovig Manjikian	0.01 s	OCaml	2022-04-28 01:01:59

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-05-14 23:09:45

#	User	Runtime	Language	Date
1	David Connolly	0.00 s	Pascal	2017-11-16 17:43:53
2	Ingemar Ragnemalm	0.00 s	Pascal	2018-02-16 22:40:36

#	User	Runtime	Language	Date
1	Saito Ta	0.02 s	Perl	2024-04-02 06:59:33

#	User	Runtime	Language	Date
1	Emil Riis Hansen	0.01 s	PHP	2018-10-29 13:04:31
2	Jesper Brodersen	0.01 s	PHP	2018-11-01 15:35:47
3	Andre Wahyudi	0.01 s	PHP	2022-10-18 12:05:21
4	Renate	0.02 s	PHP	2021-04-28 00:36:03
5	Raynaldo Dodo Bross	0.60 s	PHP	2018-04-16 17:35:16

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.03 s	Prolog	2023-01-29 23:39:51

#	User	Runtime	Language	Date
1	Justin Su	0.03 s	Python 2	2017-10-29 07:06:57
2	Prateek Bontha	0.03 s	Python 2	2017-10-29 14:47:49
3	Atli Fannar Franklín	0.03 s	Python 2	2017-10-29 17:36:50
4	Duncan Page	0.03 s	Python 2	2017-10-31 22:12:59
5	Andrei Stoica	0.03 s	Python 2	2017-10-31 22:47:49
6	Jeff Robertson	0.03 s	Python 2	2017-11-10 21:37:47
7	Haochen Chen	0.03 s	Python 2	2017-11-11 21:20:26
8	Frederik Højholt	0.03 s	Python 2	2017-11-20 16:13:50
9	Maksym Bendeberia	0.03 s	Python 2	2017-11-22 14:26:39
10	Eoin Davey	0.03 s	Python 2	2017-12-29 00:45:07

#	User	Runtime	Language	Date
1	Ziyang Zhang	0.02 s	Python 3	2017-10-29 00:48:09
2	James Gelok	0.02 s	Python 3	2017-11-01 11:11:35
3	David Ludwig	0.02 s	Python 3	2017-11-02 05:46:12
4	Tom Biju	0.02 s	Python 3	2017-11-03 17:48:59
5	Martin Stensgård	0.02 s	Python 3	2017-11-09 03:07:42
6	Devin Attig	0.02 s	Python 3	2017-11-10 21:28:41
7	Hidden user	0.02 s	Python 3	2017-11-15 00:16:17
8	Thomas Eadie	0.02 s	Python 3	2017-11-15 06:07:09
9	Nathan Helgeson	0.02 s	Python 3	2017-11-19 02:14:45
10	Hamza El Achouri	0.02 s	Python 3	2017-11-19 22:32:40

#	User	Runtime	Language	Date
1	Axel Matstoms	0.04 s	Ruby	2018-02-24 22:07:13
2	Axel Bergström	0.04 s	Ruby	2018-02-24 22:40:57
3	Jason Cheong-Kee-You	0.05 s	Ruby	2018-05-29 02:51:20
4	Daniel Harder	0.05 s	Ruby	2018-10-29 01:32:02
5	Hidden user	0.05 s	Ruby	2019-02-14 15:01:06
6	Laurent Voisin	0.05 s	Ruby	2019-08-04 11:02:12
7	Hidden user	0.05 s	Ruby	2020-06-14 20:45:16
8	Paul Vinell	0.06 s	Ruby	2018-03-10 20:27:07
9	Régis Hanol	0.06 s	Ruby	2022-01-11 16:12:32
10	Abolfazl Gol	0.07 s	Ruby	2018-07-26 13:16:54

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-04-16 16:52:18

#	User	Length	Language	Date
1	Zachariah Goldthorpe	136	C	2018-05-14 22:26:58
2	Martin Blom	281	C	2023-09-25 09:41:05
3	Anton Siderud	323	C	2023-05-06 10:06:15
4	Wesley Stephanak	344	C	2019-02-03 23:24:51
5	Mai Tuyết	398	C	2024-07-25 16:09:22
6	Seth Carter	479	C	2019-09-16 01:09:20
7	Mickael Torres	536	C	2018-04-21 18:58:10
8	Hidden user	557	C	2024-03-13 05:45:57
9	Tobias Bengtsson	565	C	2019-01-28 22:06:52
10	Matthew Weston	587	C	2021-12-31 14:45:21

#	User	Length	Language	Date
1	Jan Matthiessen	333	C#	2024-03-28 22:12:05
2	Armin Krauss	506	C#	2018-11-09 23:53:38
3	Pontus Eriksson	570	C#	2017-10-29 01:14:16
4	Esty Crow	606	C#	2023-01-27 04:07:09
5	Göran Andersson	618	C#	2022-05-07 22:59:57
6	bb660960	646	C#	2019-04-30 18:36:34
7	Anthony Ye	648	C#	2023-01-29 18:32:57
8	Karna, Harsha Vardhan Reddy	697	C#	2021-06-25 00:57:44
9	Klas af Geijerstam	739	C#	2017-11-01 09:00:52
10	Kunwei Zhang	755	C#	2018-02-05 02:44:22

#	User	Length	Language	Date
1	Johan Wind	271	C++	2018-03-15 01:53:53
2	Evan Michael Bailey	283	C++	2024-02-26 07:00:34
3	Rafif Musyaffa Indarto	289	C++	2025-03-19 14:42:43
4	Lee Yi Heng	311	C++	2023-09-09 18:45:51
5	Javier del Río	317	C++	2023-08-03 11:34:59
6	AndrescuIII	319	C++	2024-03-27 09:08:05
7	Adriel Tan	321	C++	2025-03-23 19:08:42
8	Tom Stian Andersen	332	C++	2021-09-03 20:46:38
9	Lawrence Li	341	C++	2018-02-27 00:12:28
10	Þröstur Almar Þrastarson	356	C++	2020-08-05 03:22:05

#	User	Length	Language	Date
1	David Cawthon	797	Common Lisp	2019-04-27 02:38:30
2	Hidden user	815	Common Lisp	2019-05-24 07:38:16
3	Nicholas Lantz	965	Common Lisp	2019-04-27 23:53:26

#	User	Length	Language	Date
1	David Vinje	513	F#	2022-08-02 16:20:26
2	Jacob Harris Cryer Kragh	1019	F#	2022-05-29 18:43:47

#	User	Length	Language	Date
1	Aleksandar Vorkapic	552	Go	2018-03-11 16:44:33
2	Akhikumar Indurti	672	Go	2018-10-11 02:25:02
3	Kellen Watt	672	Go	2018-11-27 20:42:49
4	Krzysztof Gibuła	674	Go	2019-01-13 23:50:38
5	Hidden user	696	Go	2017-11-01 00:48:46
6	Neal McCarthy	772	Go	2018-04-16 01:32:34
7	Norbert Voelker	842	Go	2021-04-09 22:17:57
8	Benjamin Michailov	869	Go	2024-10-04 19:49:04
9	Dick Appel	931	Go	2019-09-10 21:09:27
10	Wojtek Bednarzak	950	Go	2018-04-25 15:48:39

#	User	Length	Language	Date
1	Sebastian Banert	325	Haskell	2023-04-13 20:33:50
2	Oisín Mac Fhearaí	412	Haskell	2021-01-16 03:19:49
3	Cooper Bell	419	Haskell	2019-04-28 04:32:46
4	Brent Yorgey	420	Haskell	2017-10-28 19:59:06
5	Caleb Surovik	450	Haskell	2021-06-24 04:19:50
6	Jonas Triki	458	Haskell	2018-02-12 16:36:10
7	Monique Oliveira	467	Haskell	2021-08-28 02:39:45
8	Intrets	473	Haskell	2018-10-03 18:52:51
9	Hidden user	474	Haskell	2019-08-13 15:36:59
10	Øyvind Almli	494	Haskell	2021-05-23 17:05:07

#	User	Length	Language	Date
1	Louis Wasserman	435	Java	2018-05-05 20:00:28
2	Andrei Purcarus	536	Java	2017-10-28 18:21:59
3	Reuben James Loquinario	560	Java	2024-03-17 11:03:04
4	Marius Larsen	563	Java	2021-09-03 20:13:26
5	Carter Henderson	620	Java	2021-10-11 17:42:27
6	Florin Cazacu	626	Java	2019-08-23 19:01:56
7	Hidden user	631	Java	2018-03-27 21:49:26
8	Daniel Patel	685	Java	2018-10-11 02:24:21
9	Emile Priller	692	Java	2018-08-09 08:36:39
10	Tobias Lehnert	701	Java	2018-03-15 16:47:13

#	User	Length	Language	Date
1	Peter Kedemo	695	JavaScript (Node.js)	2020-01-01 13:00:40
2	Alex Comas	821	JavaScript (Node.js)	2018-11-10 18:59:49
3	Antoine Bauri	850	JavaScript (Node.js)	2021-02-18 20:24:24
4	Christoffer Karlsson	871	JavaScript (Node.js)	2018-07-22 15:24:59
5	Quinn Flavel	872	JavaScript (Node.js)	2020-11-06 19:08:16
6	Gurpartap Singh Bhatti	918	JavaScript (Node.js)	2019-02-14 09:11:50
7	Tomáš Necky Necuda	940	JavaScript (Node.js)	2019-02-15 09:28:21
8	Chris Wong	961	JavaScript (Node.js)	2021-02-01 22:20:56
9	Yassin Swag	1057	JavaScript (Node.js)	2023-12-02 14:37:53
10	Hidden user	1108	JavaScript (Node.js)	2024-07-12 04:55:21

#	User	Length	Language	Date
1	Christian Cederquist	238	JavaScript (SpiderMonkey)	2022-11-08 20:31:16
2	Jimmy Gustafsson	387	JavaScript (SpiderMonkey)	2022-08-15 14:13:24
3	Peter Menyes	427	JavaScript (SpiderMonkey)	2021-01-01 12:30:18
4	Zach Tschetter	490	JavaScript (SpiderMonkey)	2023-06-14 03:50:36
5	Bjørn Chr. Soltvedt	545	JavaScript (SpiderMonkey)	2017-10-29 23:26:03
6	Ryan Paul	743	JavaScript (SpiderMonkey)	2017-11-20 02:18:08
7	Bernard Perrin	776	JavaScript (SpiderMonkey)	2019-01-22 02:34:20
8	Martin Jay	817	JavaScript (SpiderMonkey)	2017-11-01 00:46:53
9	Wesley Jacobs	844	JavaScript (SpiderMonkey)	2020-03-06 20:14:28
10	Casey Smith	851	JavaScript (SpiderMonkey)	2019-02-13 04:06:46

#	User	Length	Language	Date
1	Danny Robinson	603	Julia	2023-06-21 23:47:33
2	Timothy Gaede	1640	Julia	2024-03-20 04:16:39

#	User	Length	Language	Date
1	Albert Pala	411	Kotlin	2021-06-29 15:25:40
2	Jacob Huebner	415	Kotlin	2021-04-13 02:49:21
3	Dmitry Shostak	540	Kotlin	2019-08-27 19:58:21
4	Zhengqing Ye	607	Kotlin	2018-10-13 19:43:08
5	Jonathan Soo	620	Kotlin	2019-06-21 04:09:17
6	Troy Warmboe	643	Kotlin	2020-02-07 02:42:50
7	Vegard Veiset	743	Kotlin	2017-11-09 19:28:45
8	Adam Rankin	791	Kotlin	2023-05-04 07:32:59
9	Stefan Kennedy	906	Kotlin	2017-12-04 20:47:17
10	Dan Yang	972	Kotlin	2019-02-19 02:13:05

#	User	Length	Language	Date
1	Pamidimarri Reshwanth	745	Objective-C	2020-08-21 07:38:37
2	Katamreddy Kamalesh Reddy	745	Objective-C	2020-08-21 13:56:27

#	User	Length	Language	Date
1	Oskar Haarklou Veileborg	468	OCaml	2021-01-20 12:58:07
2	Hovig Manjikian	670	OCaml	2022-04-28 01:01:59

#	User	Length	Language	Date
1	Hidden user	942	Odin	2025-05-14 23:09:45

#	User	Length	Language	Date
1	Ingemar Ragnemalm	814	Pascal	2018-02-16 22:40:36
2	David Connolly	1097	Pascal	2017-11-16 17:43:53

#	User	Length	Language	Date
1	Saito Ta	220	Perl	2024-04-02 06:59:33

#	User	Length	Language	Date
1	Renate	1148	PHP	2021-04-28 00:36:03
2	Jesper Brodersen	1187	PHP	2018-11-01 15:35:47
3	Raynaldo Dodo Bross	1255	PHP	2018-04-16 17:35:16
4	Andre Wahyudi	2330	PHP	2022-10-18 12:05:21
5	Emil Riis Hansen	2497	PHP	2018-10-29 13:04:31

#	User	Length	Language	Date
1	Hakan Kjellerstrand	512	Prolog	2023-01-29 23:39:51

#	User	Length	Language	Date
1	Justin Su	169	Python 2	2017-10-29 07:35:23
2	Duncan Page	179	Python 2	2017-10-31 22:12:59
3	Thomas Feld	236	Python 2	2019-08-19 20:19:00
4	Andreas Björklund	266	Python 2	2019-08-24 13:25:03
5	Eoin Davey	294	Python 2	2017-12-29 00:45:07
6	Jeff Robertson	300	Python 2	2017-11-10 21:37:47
7	Kevin Wang	325	Python 2	2017-11-10 19:56:41
8	Godmar Back	338	Python 2	2018-10-14 14:41:03
9	Måns Magnusson	343	Python 2	2018-09-16 13:45:45
10	Maj Stenmark	343	Python 2	2018-09-27 16:39:51

#	User	Length	Language	Date
1	Wilbert Chu	124	Python 3	2024-08-28 00:31:02
2	Błażej Dariusz Roszkowski	140	Python 3	2024-04-05 01:07:11
3	Prateek Bhakta	145	Python 3	2022-01-21 00:41:52
4	Munir Kudrati-Plummer	149	Python 3	2024-08-25 21:38:27
5	Bjørn Dons	156	Python 3	2019-02-28 23:53:06
6	Karen Birgitta Hanssen	161	Python 3	2022-12-11 17:40:43
7	Hidden user	169	Python 3	2024-01-07 07:39:47
8	K Lin	174	Python 3	2023-01-16 03:18:39
9	Dan Forest	175	Python 3	2018-05-13 03:06:26
10	Jonathan Yudi Gunawan	180	Python 3	2018-10-14 07:19:10

#	User	Length	Language	Date
1	Thomas Feld	111	Ruby	2023-09-25 15:32:17
2	Hidden user	130	Ruby	2020-06-14 20:45:16
3	Axel Bergström	138	Ruby	2018-02-24 23:33:19
4	Axel Matstoms	138	Ruby	2018-02-24 23:44:11
5	Hidden user	230	Ruby	2019-02-14 15:01:06
6	Alexander Bilde Pedersen	236	Ruby	2023-04-23 22:44:29
7	Régis Hanol	282	Ruby	2022-01-11 16:12:32
8	Daniel Harder	291	Ruby	2018-10-29 01:32:02
9	Frederik Petersen	363	Ruby	2024-04-05 13:20:48
10	Jason Cheong-Kee-You	373	Ruby	2018-05-29 02:51:20

#	User	Length	Language	Date
1	Vincent Lagerros	410	Rust	2024-12-05 00:10:06
2	Chaoyi Yin	537	Rust	2019-02-02 04:10:55
3	Kok Dith	555	Rust	2021-08-03 15:52:02
4	Pankajkumar Patro	624	Rust	2024-11-06 17:12:38
5	Fredrik Eriksson	851	Rust	2025-06-24 23:16:07
6	Hidden user	894	Rust	2019-09-30 06:24:00
7	Erik Funder Carstensen	962	Rust	2019-06-24 18:48:23
8	Bas Dirks	1077	Rust	2021-12-31 10:09:02
9	Jon Surrell	1109	Rust	2019-05-15 08:37:08
10	tony	1169	Rust	2024-05-19 11:51:27

Solution running time distribution