Problem D
Vacuumba — Problem Statistics

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Submissions	4480
Accepted submissions	2103
Submission ratio	46.94%
Authors	1967
Full solves [?]	1833
Full solve Ratio	93.19%

#	User	Runtime	Language	Date
1	Faisal Rahman	0.02 s	C#	2016-01-14 19:57:35
2	Robert Low	0.02 s	C#	2016-07-20 10:43:40
3	Khin Nyunt	0.02 s	C#	2017-04-08 06:58:09
4	Gustav Kalander	0.02 s	C#	2018-05-26 00:53:01
5	Henrik Hallbert	0.02 s	C#	2019-09-11 22:36:22
6	Thomas Norris	0.02 s	C#	2019-10-04 16:10:21
7	Marcus Elg	0.02 s	C#	2020-11-13 09:58:22
8	Mikael Fiala-Lundström	0.03 s	C#	2021-04-01 01:00:54
9	Göran Andersson	0.03 s	C#	2022-05-14 15:10:37
10	Ranjith M	0.04 s	C#	2023-08-22 23:34:52

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-09-18 12:16:22

#	User	Runtime	Language	Date
1	Thomas	0.00 s	Go	2024-01-11 21:03:49
2	Nischal Bhandari	0.00 s	Go	2025-05-16 23:13:27
3	Theo Coyne Morgan	0.02 s	Go	2019-03-26 14:54:23
4	Ian Howell	0.02 s	Go	2020-01-22 17:36:41
5	Hidden user	0.02 s	Go	2020-06-25 23:30:50
6	Norbert Voelker	0.02 s	Go	2021-04-23 18:52:52
7	Georgios Leandros Kyriazis	0.03 s	Go	2023-02-25 18:45:18
8	Jeroen Ketelaar	0.07 s	Go	2021-06-03 01:46:12
9	Stephen Atwood	0.09 s	Go	2017-04-06 03:21:05

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2017-10-13 21:05:21
2	Olle Eriksson	0.00 s	Haskell	2018-02-06 20:18:53
3	Matthew Johnson	0.00 s	Haskell	2018-03-08 16:50:02
4	Hidden user	0.00 s	Haskell	2022-12-11 16:16:45
5	Jannik Olbrich	0.00 s	Haskell	2023-07-05 17:24:51
6	Steinar Simonnes	0.00 s	Haskell	2024-02-19 11:10:28
7	Patrik Lilja	0.01 s	Haskell	2015-12-28 18:04:57
8	Håkon Flatval	0.01 s	Haskell	2018-09-02 18:02:43
9	Hidden user	0.01 s	Haskell	2019-08-24 18:27:49
10	Intrets	0.01 s	Haskell	2019-08-26 14:39:38

#	User	Runtime	Language	Date
1	David Auer	0.06 s	Java	2015-11-26 22:36:01
2	Simon Xue	0.06 s	Java	2016-03-11 07:36:43
3	Erik Baalhuis	0.06 s	Java	2016-04-03 20:03:31
4	Nick Wu	0.06 s	Java	2016-08-06 05:36:11
5	James Black	0.06 s	Java	2016-10-04 00:25:31
6	Olivier Bourgeois	0.06 s	Java	2016-10-04 01:06:22
7	Liam Keliher	0.06 s	Java	2016-10-05 06:28:49
8	Martijn Muijsers	0.06 s	Java	2016-10-05 20:48:29
9	Kurtis Van Gent	0.06 s	Java	2016-10-18 17:02:57
10	Hidden user	0.06 s	Java	2016-12-02 20:00:27

#	User	Runtime	Language	Date
1	Gurpartap Singh Bhatti	0.06 s	JavaScript (Node.js)	2019-05-28 06:01:19
2	Kliver Daniel	0.08 s	JavaScript (Node.js)	2022-08-13 22:22:57
3	Quinn Flavel	0.41 s	JavaScript (Node.js)	2020-09-22 16:38:16
4	Chris Wong	0.41 s	JavaScript (Node.js)	2021-03-13 14:34:32
5	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-13 15:56:20
6	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-12-11 05:15:57

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-04-10 22:05:02
2	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-04-10 22:30:42
3	Michael Laszlo	0.01 s	JavaScript (SpiderMonkey)	2016-10-03 04:45:13
4	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-12 22:59:57
5	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-26 23:54:55
6	Peter Menyes	0.03 s	JavaScript (SpiderMonkey)	2021-08-22 11:28:25

#	User	Runtime	Language	Date
1	Timothy Gaede	0.69 s	Julia	2024-04-10 13:59:27
2	Danny Robinson	0.76 s	Julia	2024-09-07 00:31:02

#	User	Runtime	Language	Date
1	Adam Rankin	0.19 s	Kotlin	2023-05-08 06:03:10
2	Dayan Ruben Gonzalez	0.22 s	Kotlin	2020-09-28 16:50:33
3	Einar Kjellback	0.24 s	Kotlin	2019-12-13 19:03:45
4	Troy Warmboe	0.24 s	Kotlin	2020-02-11 21:11:13
5	Neil Harmon	0.25 s	Kotlin	2019-05-06 09:59:48

#	User	Runtime	Language	Date
1	Sebastian Sternberg	0.00 s	OCaml	2022-05-06 14:05:40
2	Sebastian Banert	0.00 s	OCaml	2024-09-26 17:40:23

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-09-14 23:27:09
2	David Connolly	0.00 s	Pascal	2025-09-08 18:14:51

#	User	Runtime	Language	Date
1	Greg Hamerly	0.03 s	Python 2	2015-05-07 17:23:18
2	Asger Hautop Drewsen	0.03 s	Python 2	2015-09-27 21:08:51
3	Andi Zhang	0.03 s	Python 2	2015-10-23 18:00:58
4	Christofer Ohlsson	0.03 s	Python 2	2016-05-09 07:31:46
5	Marcus Johansson	0.03 s	Python 2	2016-08-12 22:16:02
6	Ida Ryland	0.03 s	Python 2	2016-11-02 19:19:47
7	Hasan Ramezani	0.03 s	Python 2	2016-11-12 14:34:51
8	Frederik Højholt	0.03 s	Python 2	2016-12-02 22:27:15
9	Miguel Alfageme Sanchez	0.03 s	Python 2	2017-02-11 22:53:00
10	Mehdi Ardunio	0.03 s	Python 2	2017-04-24 21:50:18

#	User	Runtime	Language	Date
1	Petra Marc	0.02 s	Python 3	2015-08-24 16:15:00
2	Hidden user	0.02 s	Python 3	2016-01-15 00:14:08
3	Unnar Freyr Erlendsson	0.02 s	Python 3	2016-05-15 17:13:32
4	Christian Lindeström	0.02 s	Python 3	2016-09-01 04:39:14
5	Hidden user	0.02 s	Python 3	2016-09-08 15:01:45
6	Ludvig Pedersen	0.02 s	Python 3	2016-09-08 15:57:52
7	Isaac Lee	0.02 s	Python 3	2016-10-13 03:07:22
8	Torstein Strømme	0.02 s	Python 3	2016-10-27 15:22:53
9	Anderson Caio Santos Silva	0.02 s	Python 3	2016-11-11 20:57:26
10	Hidden user	0.02 s	Python 3	2016-11-12 00:02:08

#	User	Runtime	Language	Date
1	Savvas Alexandrou	0.04 s	Ruby	2019-01-12 12:17:16
2	Thomas Feld	0.06 s	Ruby	2022-11-17 10:25:59

#	User	Length	Language	Date
1	Mikael K Eriksson	405	C	2021-02-03 12:06:51
2	Matthew Weston	443	C	2022-03-09 17:43:57
3	Sambit Palit	470	C	2020-10-19 01:54:46
4	Tommy Phillips	495	C	2024-04-05 17:25:28
5	Mirel Cosulschi	503	C	2024-06-25 22:32:58
6	Nathan Agius	534	C	2023-04-20 02:56:20
7	Yuran Zhang	546	C	2022-11-13 04:49:32
8	Ege	548	C	2020-11-27 17:20:57
9	Moussaid Yassine	564	C	2016-10-18 00:39:46
10	Matthew Johnson	567	C	2015-08-25 06:57:38

#	User	Length	Language	Date
1	Thomas Norris	650	C#	2019-10-04 16:10:21
2	Mikael Nilsson	666	C#	2023-09-01 15:18:01
3	Göran Andersson	855	C#	2022-05-14 15:10:37
4	Gustav Kalander	893	C#	2018-05-26 00:53:01
5	Yevgeniy Sheyer	942	C#	2025-02-15 00:12:23
6	Ranjith M	1016	C#	2023-08-22 23:34:52
7	Robert Low	1068	C#	2016-07-20 10:43:40
8	Marcus Elg	1119	C#	2020-11-13 09:58:22
9	Henrik Hallbert	1300	C#	2019-09-11 22:36:22
10	Mikael Fiala-Lundström	1415	C#	2021-04-01 01:07:00

#	User	Length	Language	Date
1	Frans Meulenbroeks	216	C++	2025-02-12 23:24:12
2	Herman Karlsson	301	C++	2015-06-16 13:09:49
3	Ganapathy Sanath Balaji	332	C++	2019-08-10 08:35:56
4	Li Jiayu	351	C++	2021-12-05 09:30:18
5	Antonio Molina Lovett	352	C++	2016-08-07 10:06:20
6	陳羿嘉	357	C++	2022-11-07 05:42:17
7	Richard Putra	359	C++	2017-11-28 06:39:35
8	Zane Yu	361	C++	2018-12-09 09:20:54
9	Yosuke Mizutani	369	C++	2018-12-17 16:04:44
10	Tommy Phillips	369	C++	2024-04-05 17:28:21

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1005	F#	2022-09-18 12:16:22

#	User	Length	Language	Date
1	Theo Coyne Morgan	400	Go	2019-03-26 14:54:23
2	Stephen Atwood	608	Go	2017-04-06 03:21:05
3	Georgios Leandros Kyriazis	646	Go	2023-02-25 18:45:18
4	Nischal Bhandari	647	Go	2025-05-16 23:13:27
5	Jeroen Ketelaar	883	Go	2021-06-03 01:46:12
6	Thomas	894	Go	2024-01-11 21:03:49
7	Hidden user	1105	Go	2020-06-25 23:30:50
8	Norbert Voelker	1123	Go	2021-04-23 18:52:52
9	Ian Howell	1530	Go	2020-01-22 17:36:41

#	User	Length	Language	Date
1	Ryan Yates	425	Haskell	2020-06-01 22:17:56
2	Håkon Flatval	500	Haskell	2018-09-02 18:02:43
3	Udo Stenzel	510	Haskell	2020-06-06 13:04:26
4	Joshua Coward	552	Haskell	2021-11-22 21:58:18
5	Jannik Olbrich	692	Haskell	2023-07-05 17:24:51
6	Caleb Surovik	737	Haskell	2021-07-09 04:46:50
7	Steinar Simonnes	937	Haskell	2024-02-19 11:10:28
8	Hidden user	999	Haskell	2020-06-03 10:07:37
9	Matthew Johnson	1078	Haskell	2018-03-08 16:50:02
10	Hidden user	1089	Haskell	2019-08-24 18:27:49

#	User	Length	Language	Date
1	Doug Goodman	492	Java	2018-06-09 16:11:03
2	Zimu Qin	500	Java	2015-10-21 15:47:10
3	Minjae Kim	537	Java	2024-11-15 09:20:23
4	Noble Bi	539	Java	2022-11-16 08:55:22
5	Ranel Pagantian	539	Java	2022-12-23 01:38:34
6	Leora Klee	539	Java	2024-11-21 00:47:57
7	Brennan Cleland	542	Java	2023-01-17 03:34:53
8	Pedro Contipelli	545	Java	2017-09-04 07:51:30
9	Carter Henderson	553	Java	2022-04-20 17:34:15
10	Kyar Nyo Aye	555	Java	2018-03-23 17:53:11

#	User	Length	Language	Date
1	Quinn Flavel	727	JavaScript (Node.js)	2020-09-22 16:38:16
2	Chris Wong	840	JavaScript (Node.js)	2021-03-13 14:34:32
3	Kliver Daniel	1044	JavaScript (Node.js)	2022-08-13 22:22:57
4	Andoko Chandra	1195	JavaScript (Node.js)	2020-10-13 15:56:20
5	Khin Nyunt	1468	JavaScript (Node.js)	2021-12-11 05:20:34
6	Gurpartap Singh Bhatti	2036	JavaScript (Node.js)	2019-05-28 06:01:19

#	User	Length	Language	Date
1	Jimmy Gustafsson	153	JavaScript (SpiderMonkey)	2024-07-26 23:54:55
2	Peter Kedemo	371	JavaScript (SpiderMonkey)	2016-04-10 22:30:42
3	Peter Menyes	415	JavaScript (SpiderMonkey)	2021-08-22 11:28:25
4	Christian Pilegaard Cederquist	434	JavaScript (SpiderMonkey)	2023-01-12 22:59:57
5	Bjørn Chr. Soltvedt	515	JavaScript (SpiderMonkey)	2016-04-10 22:05:02
6	Michael Laszlo	841	JavaScript (SpiderMonkey)	2016-10-03 04:45:13

#	User	Length	Language	Date
1	Danny Robinson	147	Julia	2024-09-07 00:31:02
2	Timothy Gaede	1610	Julia	2024-04-10 13:59:27

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	549	Kotlin	2020-09-28 16:50:33
2	Einar Kjellback	609	Kotlin	2019-12-13 19:03:45
3	Neil Harmon	939	Kotlin	2019-05-06 09:59:48
4	Troy Warmboe	1092	Kotlin	2020-02-11 21:11:13
5	Adam Rankin	1129	Kotlin	2023-05-08 06:03:10

#	User	Length	Language	Date
1	Sebastian Sternberg	528	OCaml	2022-05-06 14:05:40
2	Sebastian Banert	640	OCaml	2024-09-26 17:40:23

#	User	Length	Language	Date
1	Ingemar Ragnemalm	419	Pascal	2017-09-14 23:27:09
2	David Connolly	726	Pascal	2025-09-08 18:14:51

#	User	Length	Language	Date
1	Thomas Feld	223	Python 2	2019-08-30 13:24:00
2	Andreas Björklund	278	Python 2	2021-04-01 13:25:42
3	Jesper Öqvist	286	Python 2	2018-10-21 11:13:36
4	Asger Hautop Drewsen	287	Python 2	2015-09-27 21:08:51
5	Hasan Ramezani	296	Python 2	2016-11-12 14:34:51
6	Nathan Villanueva	320	Python 2	2017-04-28 05:06:05
7	Christofer Ohlsson	324	Python 2	2016-05-09 07:31:46
8	Hidden user	327	Python 2	2018-01-03 03:44:43
9	Johan Lyts	329	Python 2	2019-07-14 22:11:17
10	Mehdi Ardunio	337	Python 2	2017-04-24 21:50:18

#	User	Length	Language	Date
1	Charles Ancheta	164	Python 3	2023-04-09 08:43:26
2	Kévin Dubrulle	169	Python 3	2024-12-02 22:42:16
3	Simon Baeckelant	170	Python 3	2024-12-02 05:07:23
4	Timothy Baeckelant	188	Python 3	2024-05-26 00:12:30
5	Michael Goldwasser	192	Python 3	2025-08-28 05:42:53
6	Ahmed Chamseddine	195	Python 3	2023-11-20 23:13:00
7	Thibault Raffaillac	219	Python 3	2023-08-13 15:15:43
8	Oskar Haarklou Veileborg	221	Python 3	2020-02-16 13:00:19
9	mike	230	Python 3	2023-03-06 19:38:04
10	Henry Xia	232	Python 3	2022-06-06 07:14:36

#	User	Length	Language	Date
1	Thomas Feld	114	Ruby	2022-11-17 10:29:04
2	Savvas Alexandrou	1254	Ruby	2019-01-12 12:17:16

#	User	Length	Language	Date
1	David Rasch	834	Rust	2022-09-22 11:04:13
2	Ming Kang	916	Rust	2025-06-08 08:41:31
3	Freek van Keulen	931	Rust	2021-07-25 08:27:29
4	Bas Dirks	956	Rust	2022-02-16 15:56:40
5	Pankajkumar Patro	982	Rust	2024-12-07 15:55:48
6	Kok Dith	1047	Rust	2021-08-17 06:40:55
7	Sindbad Walter	1162	Rust	2023-11-18 01:46:33
8	Eric Pinter	1330	Rust	2021-11-26 04:08:50
9	Martin Rønning	1877	Rust	2021-08-05 23:31:54
10	Joe Blower	3020	Rust	2025-12-14 02:31:48

Solution running time distribution