Problem D
Boss Battle — Problem Statistics

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Submissions	10459
Accepted submissions	5325
Submission ratio	50.91%
Authors	4988
Full solves [?]	4614
Full solve Ratio	92.50%

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	APL	2023-03-08 12:00:10
2	Johan Clarström	0.01 s	APL	2023-03-13 21:45:29
3	Simon Hellsten	0.01 s	APL	2023-07-02 14:21:45
4	Sam Keyser	0.01 s	APL	2023-07-30 17:50:40
5	Max NC	0.01 s	APL	2023-09-09 14:38:20
6	Mitchell Johnstone	0.01 s	APL	2023-09-12 17:02:43
7	Arvid Jonasson	0.02 s	APL	2025-07-09 07:47:38

#	User	Runtime	Language	Date
1	Isak Nyberg	0.00 s	Bash	2023-07-12 23:07:49
2	Chenzhang Hu	0.01 s	Bash	2023-09-06 06:18:02
3	Thomas Feld	0.01 s	Bash	2023-09-28 09:57:48
4	Sissy Chen	0.01 s	Bash	2024-10-09 00:34:17

#	User	Runtime	Language	Date
1	Faisal Rahman	0.02 s	C#	2018-05-18 11:33:55
2	Alexander Grace an	0.02 s	C#	2018-12-31 14:23:13
3	Thomas Norris	0.02 s	C#	2019-10-04 04:24:04
4	Jacob Linden	0.02 s	C#	2019-10-16 13:17:40
5	Tobias Arendt Laursen	0.02 s	C#	2020-02-06 10:12:49
6	Robert Warnestam	0.02 s	C#	2020-03-24 11:45:15
7	Viktor Ekblom	0.02 s	C#	2020-03-26 18:51:24
8	Hidden user	0.02 s	C#	2020-07-06 19:07:19
9	Vicky Irmawan	0.02 s	C#	2020-07-22 08:36:40
10	Simon M. Binyamin	0.02 s	C#	2020-08-10 10:23:21

#	User	Runtime	Language	Date
1	Brandon Mitchell	0.00 s	COBOL	2020-04-07 17:00:22
2	Samuel Jefferis	0.00 s	COBOL	2020-10-06 22:48:40

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-09-13 16:48:59
2	Hidden user	0.02 s	Common Lisp	2019-06-07 22:57:44

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-06-13 19:31:33

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Go	2024-10-01 06:57:31
2	Nathan Lee	0.00 s	Go	2025-10-02 00:04:40
3	Arne Philipeit	0.06 s	Go	2018-10-13 22:08:34
4	Theo Coyne Morgan	0.07 s	Go	2019-03-26 22:16:26
5	Vaughan Andrews	0.07 s	Go	2019-03-28 02:45:54
6	Thomas Mailund	0.07 s	Go	2020-12-08 05:19:21
7	Krzysztof Gibuła	0.08 s	Go	2021-03-20 22:49:34
8	Norbert Voelker	0.08 s	Go	2021-04-25 20:34:24

#	User	Runtime	Language	Date
1	Vashista Basava	0.04 s	Java	2024-08-17 15:09:59
2	Oskar Nilsson	0.04 s	Java	2024-09-10 19:22:48
3	CUX "INDIO" PRADA	0.04 s	Java	2024-12-30 14:25:00
4	Guangyi Zhou	0.04 s	Java	2025-02-05 10:56:12
5	leo wennberg	0.04 s	Java	2025-07-08 22:05:04
6	Cesar Gonzalez	0.04 s	Java	2025-10-05 19:11:36
7	Tarek	0.04 s	Java	2025-10-12 04:44:05
8	Nick Wu	0.05 s	Java	2017-11-26 11:31:39
9	Sumer Sao	0.05 s	Java	2017-11-26 16:29:48
10	Jasper van Merle	0.05 s	Java	2017-11-26 22:52:08

#	User	Runtime	Language	Date
1	Rizky Muliawan	0.04 s	JavaScript (Node.js)	2024-02-09 04:20:13
2	Paul Molina Plant	0.05 s	JavaScript (Node.js)	2018-08-22 04:11:42
3	Ram Basnet	0.05 s	JavaScript (Node.js)	2018-10-25 16:43:45
4	Gurpartap Singh Bhatti	0.05 s	JavaScript (Node.js)	2019-04-29 00:10:49
5	Ludvig Dahlberg	0.05 s	JavaScript (Node.js)	2025-07-16 13:28:36
6	luna lovegood	0.06 s	JavaScript (Node.js)	2019-01-21 03:36:49
7	John	0.09 s	JavaScript (Node.js)	2022-08-19 01:10:54
8	Philippe Haavik	0.09 s	JavaScript (Node.js)	2022-11-10 11:29:58
9	Mohammed Al-sabaawi	0.09 s	JavaScript (Node.js)	2023-03-03 23:35:54
10	Peter Kedemo	0.42 s	JavaScript (Node.js)	2020-01-14 13:13:06

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2017-11-26 19:45:33
2	Jānis Konutis	0.01 s	JavaScript (SpiderMonkey)	2017-12-13 18:42:33
3	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-08-30 22:04:07
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2022-06-29 21:30:48
5	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-13 00:33:40

#	User	Runtime	Language	Date
1	Timothy Gaede	0.50 s	Julia	2024-04-26 05:02:22

#	User	Runtime	Language	Date
1	Sam Keyser	0.11 s	Kotlin	2022-05-16 01:14:04
2	Слава Гуляев	0.12 s	Kotlin	2017-11-26 11:43:20
3	Roy Liu	0.16 s	Kotlin	2023-06-30 13:17:06
4	Viktor Andersson	0.16 s	Kotlin	2023-07-08 00:43:30
5	Eric Sjöström	0.16 s	Kotlin	2023-08-03 13:46:36
6	Adam Koprowski	0.17 s	Kotlin	2020-09-16 10:29:57
7	Nicholas Johnson	0.17 s	Kotlin	2021-04-19 02:01:16
8	Hidden user	0.17 s	Kotlin	2021-07-19 06:40:38
9	Johnny Baloney	0.17 s	Kotlin	2021-09-26 19:31:35
10	Bradley Richards	0.17 s	Kotlin	2023-03-07 17:52:28

#	User	Runtime	Language	Date
1	Zeheng Li	0.00 s	Lua	2023-12-04 22:36:17
2	Caleb Austin	0.00 s	Lua	2024-10-11 22:25:20
3	Shinji Koshida	0.00 s	Lua	2025-04-04 10:36:41

#	User	Runtime	Language	Date
1	selyann berrada	0.00 s	OCaml	2024-10-02 21:14:46
2	Hidden user	0.00 s	OCaml	2025-03-25 11:58:43

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-03-19 22:05:42
2	Magnus Ragnemalm	0.00 s	Pascal	2018-08-16 20:01:36

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2022-08-14 03:25:09
2	Thomas Feld	0.01 s	PHP	2023-01-31 13:49:34

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2019-04-29 11:56:45

#	User	Runtime	Language	Date
1	Henrik Gingsjö	0.02 s	Python 2	2017-11-26 12:22:02
2	Vaibhav Tulsyan	0.02 s	Python 2	2017-11-26 13:06:15
3	Christofer Ohlsson	0.02 s	Python 2	2017-11-26 14:33:33
4	Sigurður Jens Albertsson	0.02 s	Python 2	2017-11-26 18:29:21
5	Måns Magnusson	0.02 s	Python 2	2017-11-26 18:45:51
6	Oskar Haarklou Veileborg	0.02 s	Python 2	2017-11-26 18:51:15
7	Asger Hautop Drewsen	0.02 s	Python 2	2017-11-26 19:05:52
8	Eoin Davey	0.02 s	Python 2	2017-11-27 01:35:28
9	Olav Røthe Bakken	0.02 s	Python 2	2017-11-28 12:40:04
10	Erik Tjøswold	0.02 s	Python 2	2017-11-28 14:40:41

#	User	Runtime	Language	Date
1	Björn Magnusson	0.02 s	Python 3	2017-11-26 11:33:53
2	Konstantin Pervunin	0.02 s	Python 3	2017-11-26 11:36:52
3	Marcus Dicander	0.02 s	Python 3	2017-11-26 11:43:51
4	Lorian Coltof	0.02 s	Python 3	2017-11-26 13:25:19
5	Stefan Kennedy	0.02 s	Python 3	2017-11-26 13:58:16
6	Casper Freksen	0.02 s	Python 3	2017-11-26 14:39:36
7	Rick Wouters	0.02 s	Python 3	2017-11-26 16:11:41
8	Arnar Bjarni Arnarson	0.02 s	Python 3	2017-11-26 16:47:29
9	Lars Åström	0.02 s	Python 3	2017-11-26 18:47:51
10	Atli Fannar Franklín	0.02 s	Python 3	2017-11-26 21:32:31

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Ruby	2019-03-05 15:53:16
2	Hidden user	0.04 s	Ruby	2019-03-29 21:10:37
3	Davi Guimarães Leite	0.05 s	Ruby	2019-03-29 21:10:57
4	Hidden user	0.05 s	Ruby	2021-07-04 20:23:17
5	Kok Dith	0.05 s	Ruby	2021-08-18 11:24:19
6	Yusuke Ichiki	0.05 s	Ruby	2022-04-15 11:23:57
7	Rikuto Sueta	0.05 s	Ruby	2022-04-18 20:37:07
8	Frederik Spang	0.05 s	Ruby	2022-09-30 18:57:20
9	Frederik Petersen	0.05 s	Ruby	2022-10-04 18:54:59
10	Thomas Feld	0.06 s	Ruby	2022-11-28 12:03:43

#	User	Length	Language	Date
1	Thomas Feld	15	APL	2023-03-08 12:00:10
2	Johan Clarström	15	APL	2023-03-13 21:46:31
3	Simon Hellsten	15	APL	2023-07-02 14:27:06
4	Sam Keyser	15	APL	2023-07-30 17:53:02
5	Max NC	15	APL	2023-09-09 14:38:20
6	Mitchell Johnstone	15	APL	2023-09-12 17:02:43
7	Arvid Jonasson	15	APL	2025-07-09 07:47:38

#	User	Length	Language	Date
1	Chenzhang Hu	22	Bash	2025-09-12 14:04:38
2	Isak Nyberg	24	Bash	2023-07-12 23:07:49
3	Sissy Chen	27	Bash	2024-10-09 00:34:17
4	Thomas Feld	28	Bash	2023-09-28 09:57:48

#	User	Length	Language	Date
1	Toon Van Eyck	74	C	2025-08-22 23:14:37
2	Boris Vanhoof	75	C	2025-04-08 07:27:54
3	Aquafina water bottle	108	C	2018-10-19 23:13:39
4	Sergey Jakobsen	108	C	2020-12-30 20:41:51
5	Yang Chenglong	111	C	2019-01-02 04:30:23
6	Elias Murcray	114	C	2024-10-07 23:17:20
7	Christopher Henry Bohn	116	C	2018-10-15 08:35:00
8	E Hsiao	116	C	2019-03-04 09:30:05
9	Mikael K Eriksson	119	C	2021-03-12 19:47:12
10	Ivandy Ricardo Hutajulu	124	C	2019-12-23 10:11:21

#	User	Length	Language	Date
1	Nathan Andrews	119	C#	2024-10-11 22:12:31
2	Hidden user	216	C#	2020-07-06 19:07:19
3	Göran Andersson	241	C#	2022-05-14 01:03:39
4	Harley Lafeber	258	C#	2020-09-02 12:23:00
5	Mikael Fiala-Lundström	262	C#	2021-05-02 20:37:10
6	Vicky Irmawan	269	C#	2020-07-22 08:36:40
7	Գոռ Բաղդասարյան	281	C#	2025-02-21 06:55:20
8	Sebastian Sternberg	307	C#	2021-02-10 19:45:27
9	Yevgeniy Sheyer	329	C#	2025-03-14 03:00:50
10	Hidden user	332	C#	2021-02-01 11:00:42

#	User	Length	Language	Date
1	Ralf Merhof	74	C++	2024-04-10 16:07:22
2	Tyler Fernando	76	C++	2022-11-01 04:18:22
3	Kai10	91	C++	2025-06-12 22:22:36
4	Hidden user	94	C++	2020-03-04 23:15:40
5	soutinho	95	C++	2022-04-21 03:50:12
6	André Luiz Góis Queiroz	97	C++	2025-07-04 22:50:47
7	Mikołaj Stępiński	102	C++	2020-12-11 15:21:33
8	Đậu Huy Minh	102	C++	2023-09-21 17:15:22
9	Hidden user	103	C++	2023-03-24 18:38:41
10	Anna Roczek	103	C++	2023-07-05 00:48:01

#	User	Length	Language	Date
1	Brandon Mitchell	414	COBOL	2020-04-07 17:00:22
2	Samuel Jefferis	824	COBOL	2020-10-06 22:48:40

#	User	Length	Language	Date
1	Hidden user	40	Common Lisp	2019-06-07 22:57:44
2	David Cawthon	537	Common Lisp	2020-09-13 16:48:59

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	102	F#	2022-06-13 19:31:33

#	User	Length	Language	Date
1	Thomas Mailund	133	Go	2020-12-08 05:19:21
2	Vaughan Andrews	139	Go	2019-03-28 02:45:54
3	Arne Philipeit	141	Go	2018-10-13 22:08:34
4	Hidden user	143	Go	2024-10-01 06:57:31
5	Theo Coyne Morgan	157	Go	2019-03-26 22:16:26
6	Nathan Lee	258	Go	2025-10-02 00:04:40
7	Krzysztof Gibuła	291	Go	2021-03-20 22:49:34
8	Norbert Voelker	517	Go	2021-04-25 20:34:24

#	User	Length	Language	Date
1	Daniel Brännvall	33	Haskell	2023-06-29 16:56:24
2	Dan Greco	37	Haskell	2025-10-01 20:15:51
3	Rudy Matela	41	Haskell	2024-11-14 18:17:18
4	Joakim Blikstad	51	Haskell	2018-02-14 03:16:14
5	Rudi Svartveit	51	Haskell	2019-09-25 18:49:23
6	Sebastian Banert	51	Haskell	2023-10-05 20:56:32
7	Birk Tjelmeland	52	Haskell	2017-12-04 21:19:53
8	Steinar Simonnes	52	Haskell	2023-02-15 22:46:13
9	Nicholas Marsh	63	Haskell	2022-09-19 16:20:24
10	Hidden user	76	Haskell	2022-11-22 11:42:28

#	User	Length	Language	Date
1	Jason Portillo	173	Java	2018-01-27 19:23:50
2	Tom Bousso	188	Java	2017-12-06 22:14:21
3	Derek Goodwin	189	Java	2018-01-27 19:25:04
4	Chen Shenghao	189	Java	2019-01-28 12:00:57
5	Timothy Buzzelli	193	Java	2018-01-27 19:12:05
6	William Brigham	196	Java	2018-01-27 19:13:08
7	Matthew Garrison	203	Java	2018-01-27 19:13:47
8	Ryan Looney	203	Java	2018-09-30 06:42:08
9	Dylan Smith	209	Java	2021-07-02 02:14:47
10	Matthew Lutze	210	Java	2018-02-17 02:43:29

#	User	Length	Language	Date
1	Peter Kedemo	211	JavaScript (Node.js)	2020-01-14 13:13:06
2	Gurpartap Singh Bhatti	229	JavaScript (Node.js)	2019-04-29 00:10:49
3	Kai Joon Leong	247	JavaScript (Node.js)	2022-04-19 12:10:20
4	Muhd Hifzur Rahman	260	JavaScript (Node.js)	2022-04-19 15:04:23
5	Desmond Cheng Wen Jie	260	JavaScript (Node.js)	2022-04-22 12:15:23
6	Clarence Loh	275	JavaScript (Node.js)	2022-04-24 09:11:56
7	Lee Xuan Rong	278	JavaScript (Node.js)	2022-04-19 16:16:27
8	Hidden user	278	JavaScript (Node.js)	2022-04-20 15:36:43
9	Jeremiah Ang	281	JavaScript (Node.js)	2022-03-22 08:43:46
10	Neo Yu Hong	282	JavaScript (Node.js)	2022-04-18 06:06:19

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	30	JavaScript (SpiderMonkey)	2023-01-13 00:33:40
2	Bjørn Chr. Soltvedt	49	JavaScript (SpiderMonkey)	2017-11-26 19:45:33
3	Jānis Konutis	178	JavaScript (SpiderMonkey)	2017-12-13 18:44:28
4	Peter Menyes	259	JavaScript (SpiderMonkey)	2021-08-30 22:04:07
5	Jimmy Gustafsson	343	JavaScript (SpiderMonkey)	2022-06-29 21:30:48

#	User	Length	Language	Date
1	Timothy Gaede	137	Julia	2024-04-26 05:02:22

#	User	Length	Language	Date
1	Hidden user	68	Kotlin	2025-08-19 11:32:35
2	Eric Sjöström	87	Kotlin	2023-08-03 13:46:36
3	Ivo Heberle	87	Kotlin	2023-08-21 15:45:09
4	Troy Warmboe	106	Kotlin	2020-02-12 02:26:12
5	Emil Göransson	120	Kotlin	2023-07-03 14:07:56
6	Nicholas Johnson	127	Kotlin	2022-05-15 17:32:34
7	Bradley Richards	129	Kotlin	2024-02-22 12:40:42
8	Sam Keyser	131	Kotlin	2022-05-16 01:14:04
9	Noru	133	Kotlin	2024-04-09 10:27:26
10	Emil Wihlander	136	Kotlin	2023-07-28 16:27:26

#	User	Length	Language	Date
1	Zeheng Li	72	Lua	2023-12-13 00:18:29
2	Shinji Koshida	90	Lua	2025-04-04 10:36:41
3	Caleb Austin	546	Lua	2024-10-11 22:25:20

#	User	Length	Language	Date
1	Hidden user	48	OCaml	2025-03-25 11:58:43
2	selyann berrada	92	OCaml	2024-10-05 01:50:46

#	User	Length	Language	Date
1	Magnus Ragnemalm	107	Pascal	2018-08-16 20:01:36
2	Ingemar Ragnemalm	120	Pascal	2018-03-19 22:05:42

#	User	Length	Language	Date
1	Thomas Feld	17	PHP	2023-01-31 13:49:34
2	Renate	78	PHP	2022-08-14 03:25:09

#	User	Length	Language	Date
1	Andriy Zyevakov	132	Prolog	2019-04-29 11:56:45

#	User	Length	Language	Date
1	Sigurður Jens Albertsson	22	Python 2	2017-11-26 18:29:21
2	Asger Hautop Drewsen	22	Python 2	2017-11-26 19:05:52
3	Peter Beattie	22	Python 2	2017-11-29 22:54:13
4	Simon Hellsten	22	Python 2	2023-07-02 14:38:31
5	Måns Magnusson	23	Python 2	2017-11-26 18:45:51
6	Eoin Davey	23	Python 2	2017-11-27 01:35:28
7	Garðar Sigurðsson	23	Python 2	2017-12-22 13:28:02
8	Oskar Haarklou Veileborg	25	Python 2	2017-11-26 18:51:15
9	Аlon Djurinsky	25	Python 2	2018-10-21 18:24:55
10	Guan Yang Ze	25	Python 2	2019-08-26 05:31:53

#	User	Length	Language	Date
1	Arnar Bjarni Arnarson	28	Python 3	2017-11-26 16:47:29
2	Lars Åström	28	Python 3	2017-11-26 18:47:51
3	Hidden user	28	Python 3	2018-02-21 21:35:41
4	Jordan Koelbl	28	Python 3	2018-03-03 08:20:54
5	Arthur Tseng	28	Python 3	2018-08-02 07:32:45
6	Chinmay Viraj Raut	28	Python 3	2018-10-16 13:37:33
7	Zachariah Goldthorpe	28	Python 3	2018-10-19 23:06:34
8	Christian Blumenthal	28	Python 3	2019-02-12 13:06:21
9	Hans Tananda	28	Python 3	2019-07-10 11:15:10
10	Biruk Alamirew	28	Python 3	2019-11-22 08:07:54

#	User	Length	Language	Date
1	Hidden user	21	Ruby	2021-07-04 20:23:17
2	Frederik Spang	21	Ruby	2022-09-30 18:57:20
3	Frederik Petersen	21	Ruby	2022-10-04 18:54:59
4	Thomas Feld	21	Ruby	2022-11-28 12:03:43
5	Julian Nohr	21	Ruby	2023-01-05 22:39:16
6	Gustav Elmqvist	21	Ruby	2023-03-05 21:43:11
7	Simon Hellsten	21	Ruby	2023-07-02 14:34:19
8	Russell Ng	21	Ruby	2025-05-27 19:21:57
9	Hidden user	27	Ruby	2019-03-05 15:53:16
10	Yusuke Ichiki	27	Ruby	2022-04-15 11:23:57

#	User	Length	Language	Date
1	David Aldenbro	107	Rust	2023-10-26 13:50:28
2	Louis Bouchard	202	Rust	2024-10-04 05:27:05
3	David Rasch	206	Rust	2023-10-02 13:48:04
4	Hidden user	218	Rust	2023-07-03 11:29:00
5	Bas Dirks	222	Rust	2022-01-05 05:06:21
6	Ryan Mueller	230	Rust	2023-10-11 14:34:49
7	Joe Blower	251	Rust	2025-06-18 16:18:18
8	Columbus	272	Rust	2022-06-28 10:43:45
9	Marcus Persson	272	Rust	2025-07-31 13:04:03
10	Paul Nutini	275	Rust	2023-09-12 06:27:27

Solution running time distribution