Problem C
Video Speedup — Problem Statistics

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Submissions	2101
Accepted submissions	1190
Submission ratio	56.64%
Authors	1106
Full solves [?]	1035
Full solve Ratio	93.58%

#	User	Runtime	Language	Date
1	Keiron Beadle	0.03 s	C#	2019-09-29 17:10:07
2	Emil Bak-Møller	0.03 s	C#	2020-02-13 01:01:54
3	Thomas Norris	0.03 s	C#	2020-11-16 19:51:08
4	Mikael Fiala-Lundström	0.03 s	C#	2021-05-02 23:44:31
5	Isak Emil Bahbah Bjørshol	0.03 s	C#	2021-11-03 09:43:46
6	Göran Andersson	0.03 s	C#	2022-05-15 22:03:40
7	Eric Weiss	0.03 s	C#	2022-08-08 17:13:50
8	Hidden user	0.03 s	C#	2022-12-20 21:44:02
9	Mehdi Khamse	0.04 s	C#	2023-07-16 16:53:40
10	Jack Cannell	0.04 s	C#	2023-12-02 21:21:22

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-10-13 15:10:17

#	User	Runtime	Language	Date
1	James Robb	0.02 s	Go	2020-05-15 13:09:40
2	James Robb	0.08 s	Go	2020-05-15 16:06:50
3	Norbert Voelker	0.08 s	Go	2021-05-06 22:19:54
4	Theodore Charts	0.09 s	Go	2021-06-09 05:13:46
5	Magix	0.10 s	Go	2020-12-13 05:51:00
6	Michel Davalos Boites	0.11 s	Go	2020-04-14 08:05:25
7	Georgios Leandros Kyriazis	0.11 s	Go	2023-02-25 16:15:53

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2019-03-09 22:59:44
2	Gunnar Kleiven	0.01 s	Haskell	2019-06-09 15:53:54
3	Hidden user	0.01 s	Haskell	2019-10-05 18:53:48
4	Jan Hrček	0.01 s	Haskell	2020-11-14 11:18:48
5	Caleb Surovik	0.01 s	Haskell	2021-07-18 04:54:12
6	Hidden user	0.01 s	Haskell	2022-11-22 03:26:36
7	Steinar Simonnes	0.01 s	Haskell	2024-03-23 14:38:14
8	Felipe Péret	0.01 s	Haskell	2025-10-09 03:52:12

#	User	Runtime	Language	Date
1	Samuel Klingström	0.06 s	Java	2020-06-17 23:00:33
2	Sven Rönnbäck	0.06 s	Java	2022-03-24 17:41:11
3	Hidden user	0.07 s	Java	2022-09-22 00:47:38
4	Taras Romanyuk	0.07 s	Java	2024-04-06 17:14:12
5	Ku Brian	0.07 s	Java	2024-05-08 04:01:14
6	Jack Le	0.08 s	Java	2020-07-10 09:31:33
7	Travis Dula	0.08 s	Java	2020-07-20 21:46:22
8	Kevin Dai	0.08 s	Java	2020-08-07 17:46:14
9	Ákos Grabecz	0.08 s	Java	2021-04-28 11:57:05
10	Dante Bencivenga	0.08 s	Java	2021-08-21 22:06:30

#	User	Runtime	Language	Date
1	Gurpartap Singh Bhatti	0.06 s	JavaScript (Node.js)	2019-06-09 05:45:18
2	Antonia Sisneros	0.09 s	JavaScript (Node.js)	2022-12-08 19:24:24
3	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-12 20:19:42
4	Peter Kedemo	0.42 s	JavaScript (Node.js)	2020-12-26 11:40:07
5	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-03-06 14:46:02
6	Chris Wong	0.42 s	JavaScript (Node.js)	2021-03-12 19:53:25
7	Niamh Limerick	0.43 s	JavaScript (Node.js)	2022-02-17 17:22:58

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-15 13:38:20
2	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-15 21:25:12
3	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2019-03-11 14:25:57
4	Peter Menyes	0.03 s	JavaScript (SpiderMonkey)	2021-09-01 21:03:10

#	User	Runtime	Language	Date
1	Timothy Gaede	0.53 s	Julia	2024-04-09 15:50:26

#	User	Runtime	Language	Date
1	James WIlliams	0.13 s	Kotlin	2020-12-31 09:17:41
2	Hidden user	0.16 s	Kotlin	2020-02-22 05:38:23
3	Johnny Baloney	0.16 s	Kotlin	2022-02-28 15:09:07
4	Troy Warmboe	0.21 s	Kotlin	2023-04-11 22:59:33
5	Adam Rankin	0.21 s	Kotlin	2023-08-28 06:45:20
6	Emil Wihlander	0.22 s	Kotlin	2023-07-27 14:00:24
7	Merih Bora Poçan	0.23 s	Kotlin	2020-08-21 22:46:37
8	Mohsen Dehbashi	0.24 s	Kotlin	2021-07-10 07:45:36
9	Neil Harmon	0.25 s	Kotlin	2019-07-22 14:26:33
10	ck1080906陳亮宇	0.27 s	Kotlin	2020-04-18 07:59:19

#	User	Runtime	Language	Date
1	Jesse Case	0.00 s	OCaml	2022-10-22 18:45:36
2	Sebastian Banert	0.00 s	OCaml	2024-07-20 15:27:57

#	User	Runtime	Language	Date
1	Renate Fiala-Lundström	0.01 s	PHP	2023-07-21 00:52:00

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	Prolog	2019-06-05 17:15:15

#	User	Runtime	Language	Date
1	Tim Barry	0.03 s	Python 2	2019-03-09 21:20:23
2	Jesper Öqvist	0.03 s	Python 2	2019-03-10 11:30:34
3	Johan Lyts	0.03 s	Python 2	2019-03-11 15:14:55
4	Øyvind Haarberg	0.03 s	Python 2	2019-03-11 15:55:48
5	Rafael Rivas	0.03 s	Python 2	2019-03-14 02:37:39
6	Maj Stenmark	0.03 s	Python 2	2019-05-01 22:21:30
7	Amit Joshi	0.03 s	Python 2	2019-05-10 21:19:08
8	Andrew Heng	0.03 s	Python 2	2019-05-23 20:25:02
9	Andreas Björklund	0.03 s	Python 2	2019-06-30 09:08:23
10	Thomas Feld	0.03 s	Python 2	2019-09-16 11:10:03

#	User	Runtime	Language	Date
1	Edward Song	0.02 s	Python 3	2019-03-09 21:12:58
2	Hien Le	0.02 s	Python 3	2019-03-09 21:20:25
3	Mohammad-Jafar Mashhadi-Ebrahim	0.02 s	Python 3	2019-03-09 21:21:58
4	Victor Zheng	0.02 s	Python 3	2019-03-09 21:31:34
5	Josip Smolcic	0.02 s	Python 3	2019-03-09 21:38:33
6	Waley Chen	0.02 s	Python 3	2019-03-09 21:41:07
7	Hansel Qiu	0.02 s	Python 3	2019-03-09 21:46:18
8	Umut Can Emre	0.02 s	Python 3	2019-03-09 21:58:17
9	Thomas Vu	0.02 s	Python 3	2019-03-09 22:16:03
10	Rachel Pawliuk	0.02 s	Python 3	2019-03-09 22:16:09

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Ruby	2019-11-27 14:30:45
2	Kok Dith	0.05 s	Ruby	2021-08-19 05:52:10
3	Thomas Feld	0.06 s	Ruby	2023-02-28 15:15:17

#	User	Runtime	Language	Date
1	Eric Pinter	0.00 s	Rust	2020-11-02 05:17:30
2	Bas Dirks	0.00 s	Rust	2022-02-16 15:32:09
3	Pankajkumar Patro	0.00 s	Rust	2024-08-26 00:09:22
4	Isak Jägberg	0.00 s	Rust	2024-10-21 14:07:05
5	Artur Khuziakhmetov	0.00 s	Rust	2025-02-02 08:57:22
6	Vincent Lagerros	0.00 s	Rust	2025-03-10 02:00:28

#	User	Runtime	Language	Date
1	John Stewart	0.09 s	TypeScript	2023-09-19 18:32:00

#	User	Length	Language	Date
1	Jesse Case	368	C	2022-10-22 18:18:59
2	Hidden user	375	C	2021-12-02 16:31:05
3	Mustapha Slimani	391	C	2020-06-04 14:51:58
4	紅茶	396	C	2023-09-04 15:27:26
5	Sambit Palit	447	C	2020-09-05 01:42:27
6	Hidden user	480	C	2025-06-24 18:09:27
7	Abhimanyu Rawat	485	C	2019-09-13 18:48:13
8	Andrew Roberts	536	C	2019-05-31 02:11:40
9	PhilCampbell	563	C	2021-01-22 16:54:45
10	Felix Ren	623	C	2021-07-04 12:47:23

#	User	Length	Language	Date
1	traxex	379	C#	2024-05-27 07:56:20
2	Mehdi Khamse	656	C#	2023-07-16 16:53:40
3	Thomas Norris	692	C#	2020-11-16 19:51:08
4	Göran Andersson	731	C#	2022-05-15 22:03:40
5	Emil Bak-Møller	768	C#	2020-02-13 01:01:54
6	Eric Weiss	884	C#	2022-08-08 17:13:50
7	Keiron Beadle	951	C#	2019-09-29 17:10:07
8	Isak Emil Bahbah Bjørshol	1131	C#	2021-11-03 09:43:46
9	Jack Cannell	1208	C#	2023-12-02 21:21:22
10	Hidden user	1352	C#	2022-12-20 21:44:02

#	User	Length	Language	Date
1	Bay Wei Heng	257	C++	2019-08-19 01:21:08
2	Hidden user	276	C++	2020-02-01 20:24:18
3	Hidden user	288	C++	2021-09-05 19:01:34
4	Frederick Pek	304	C++	2021-06-11 12:56:14
5	Firaol Bulo	309	C++	2023-08-09 00:42:29
6	Li Jiayu	311	C++	2021-12-06 11:09:49
7	Markus Mathiasen	311	C++	2022-01-27 16:55:37
8	Mugeon Kim	313	C++	2024-03-31 06:52:08
9	Nguyen Tran Huu Duc	319	C++	2021-12-18 03:48:43
10	Wen Hao	324	C++	2022-11-17 11:56:56

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	553	F#	2022-10-13 15:10:17

#	User	Length	Language	Date
1	Michel Davalos Boites	489	Go	2020-04-14 08:05:25
2	Georgios Leandros Kyriazis	570	Go	2023-02-25 16:15:53
3	Theodore Charts	590	Go	2021-06-09 05:14:43
4	Norbert Voelker	877	Go	2021-05-06 22:19:54
5	Magix	1070	Go	2020-12-13 05:57:08
6	James Robb	1140	Go	2020-05-15 16:06:50
7	James Robb	1206	Go	2020-05-15 13:10:16

#	User	Length	Language	Date
1	Brent Yorgey	450	Haskell	2019-03-09 22:59:44
2	Caleb Surovik	473	Haskell	2021-07-18 04:54:12
3	Jan Hrček	497	Haskell	2020-11-14 11:18:48
4	Felipe Péret	516	Haskell	2025-10-09 03:52:12
5	Hidden user	559	Haskell	2022-11-22 03:26:36
6	Steinar Simonnes	615	Haskell	2024-03-23 14:38:14
7	Gunnar Kleiven	812	Haskell	2019-06-09 15:53:54
8	Hidden user	6896	Haskell	2019-10-05 18:53:48

#	User	Length	Language	Date
1	Eric Leow Yu Quan	457	Java	2021-01-11 05:00:40
2	Jordon Cheung	483	Java	2019-03-09 23:06:10
3	Parker Wong	487	Java	2019-03-09 22:04:26
4	Megan	500	Java	2022-11-04 17:41:23
5	Hidden user	516	Java	2020-08-27 12:50:33
6	Caeden Whitaker	532	Java	2020-07-21 14:56:18
7	Eskil Jarlskog	544	Java	2019-03-10 21:56:32
8	Jason Liu	544	Java	2023-04-19 16:06:55
9	Jimmy Deng	556	Java	2019-03-09 22:17:31
10	Yahya Fati Haji	564	Java	2019-08-19 15:07:40

#	User	Length	Language	Date
1	Chris Wong	459	JavaScript (Node.js)	2021-03-12 19:53:25
2	Peter Kedemo	518	JavaScript (Node.js)	2020-12-26 11:40:07
3	Howard Tin Chi Chan	527	JavaScript (Node.js)	2021-03-06 14:46:02
4	Gurpartap Singh Bhatti	579	JavaScript (Node.js)	2019-06-09 05:45:18
5	Antonia Sisneros	669	JavaScript (Node.js)	2022-12-08 19:24:24
6	Andoko Chandra	851	JavaScript (Node.js)	2020-10-12 20:19:42
7	Niamh Limerick	1532	JavaScript (Node.js)	2022-02-17 17:22:58

#	User	Length	Language	Date
1	Jimmy Gustafsson	136	JavaScript (SpiderMonkey)	2024-07-15 21:26:13
2	Peter Menyes	237	JavaScript (SpiderMonkey)	2021-09-01 21:03:10
3	Bjørn Chr. Soltvedt	247	JavaScript (SpiderMonkey)	2019-03-11 14:25:57
4	Christian Pilegaard Cederquist	384	JavaScript (SpiderMonkey)	2023-01-15 13:38:20

#	User	Length	Language	Date
1	Timothy Gaede	682	Julia	2024-04-09 15:50:26

#	User	Length	Language	Date
1	Magnus Wass	255	Kotlin	2020-03-09 21:39:38
2	Adam Rankin	318	Kotlin	2023-08-28 06:45:20
3	Emil Wihlander	326	Kotlin	2023-07-27 14:00:24
4	Mohsen Dehbashi	391	Kotlin	2021-07-10 07:45:36
5	Troy Warmboe	465	Kotlin	2023-04-11 22:59:33
6	Einar Kjellback	530	Kotlin	2020-08-14 13:01:16
7	Merih Bora Poçan	627	Kotlin	2020-08-21 22:46:37
8	Johnny Baloney	699	Kotlin	2022-02-28 15:09:07
9	ck1080906陳亮宇	790	Kotlin	2020-04-18 07:59:19
10	Hidden user	885	Kotlin	2020-02-22 05:38:23

#	User	Length	Language	Date
1	Sebastian Banert	451	OCaml	2024-07-20 15:27:57
2	Jesse Case	483	OCaml	2022-10-22 18:45:36

#	User	Length	Language	Date
1	Renate Fiala-Lundström	414	PHP	2023-07-21 00:52:00

#	User	Length	Language	Date
1	Andriy Zyevakov	491	Prolog	2019-06-05 17:15:15

#	User	Length	Language	Date
1	Thomas Feld	147	Python 2	2019-09-16 11:10:03
2	Andreas Björklund	178	Python 2	2019-06-30 09:08:23
3	Jesper Öqvist	209	Python 2	2019-03-10 11:30:34
4	Johan Lyts	218	Python 2	2019-03-11 15:14:55
5	Maj Stenmark	222	Python 2	2019-05-01 22:21:30
6	Valeria Parnenzini	222	Python 2	2022-01-04 18:30:03
7	Immanuel Chia	222	Python 2	2023-12-15 04:28:41
8	Shakeel Samsudeen	223	Python 2	2020-06-11 18:53:17
9	stephen ngo	232	Python 2	2020-09-14 05:36:23
10	Mione	232	Python 2	2020-09-16 10:47:35

#	User	Length	Language	Date
1	Charles Ancheta	120	Python 3	2023-04-09 08:37:45
2	Ahmed Chamseddine	127	Python 3	2024-07-19 23:45:56
3	Kévin Dubrulle	130	Python 3	2024-11-17 15:19:45
4	Guillermo Hernández	135	Python 3	2022-09-21 15:54:31
5	Ashebir Wondemeneh	138	Python 3	2021-07-10 14:01:56
6	Benjamin Z White	139	Python 3	2023-04-10 17:55:39
7	Paul Swingle	142	Python 3	2022-12-08 21:07:23
8	Lasse Letager Hansen	144	Python 3	2024-11-29 17:44:42
9	M Base 2	145	Python 3	2020-07-16 21:31:02
10	Tistou	145	Python 3	2022-01-12 15:22:10

#	User	Length	Language	Date
1	Thomas Feld	76	Ruby	2023-02-28 15:18:21
2	Hidden user	192	Ruby	2019-11-27 14:30:45
3	Kok Dith	264	Ruby	2021-08-19 05:52:10

#	User	Length	Language	Date
1	Vincent Lagerros	532	Rust	2025-03-10 02:00:28
2	Artur Khuziakhmetov	576	Rust	2025-02-02 08:57:22
3	Bas Dirks	590	Rust	2022-02-16 15:35:35
4	Pankajkumar Patro	801	Rust	2024-08-26 00:09:22
5	Isak Jägberg	877	Rust	2024-10-21 14:07:05
6	Eric Pinter	1193	Rust	2020-11-02 05:17:30

#	User	Length	Language	Date
1	John Stewart	970	TypeScript	2023-09-19 18:32:00

Solution running time distribution