Problem A
Movie Collection — Problem Statistics

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Submissions	5785
Accepted submissions	2279
Submission ratio	39.39%
Authors	1901
Full solves [?]	1490
Full solve Ratio	78.38%

#	User	Runtime	Language	Date
1	Sabit Zahin	0.02 s	C	2017-08-14 17:52:08
2	Axel Delbom	0.03 s	C	2021-10-11 18:25:34
3	Lawry Sorenson	0.05 s	C	2024-09-18 18:23:09
4	Garðar Ingvarsson	0.06 s	C	2019-02-18 01:53:42
5	Hidden user	0.07 s	C	2018-09-04 12:12:04
6	David Ludwig	0.07 s	C	2019-10-20 08:49:06
7	Tanner Hoke	0.08 s	C	2019-02-02 23:05:02
8	Thibault Raffaillac	0.08 s	C	2019-10-05 18:18:11
9	Jón Steinn Elíasson	0.08 s	C	2020-03-29 21:48:25
10	Ishan Rakholiya	0.08 s	C	2020-11-10 20:09:44

#	User	Runtime	Language	Date
1	Simon Ståhlberg	0.36 s	C#	2014-02-10 14:02:07
2	Gustav Kalander	0.61 s	C#	2018-05-13 20:59:53
3	Nathan Andrews	1.47 s	C#	2024-09-23 00:31:00

#	User	Runtime	Language	Date
1	Johannes Olegård	0.03 s	C++	2016-09-18 11:59:12
2	Tanner Hoke	0.03 s	C++	2019-02-02 23:09:50
3	Alexander Viklund	0.03 s	C++	2019-02-03 22:20:54
4	Alexander Westberg-Bladh	0.03 s	C++	2019-02-04 11:35:11
5	Lukas Rickie	0.03 s	C++	2021-08-21 09:01:47
6	Kaelin Wang Hu	0.03 s	C++	2025-03-20 06:15:24
7	Hans Tananda	0.04 s	C++	2019-06-07 07:41:14
8	Fumiko Chiriku	0.04 s	C++	2021-08-24 07:52:47
9	Lars Hummelgren	0.05 s	C++	2016-09-25 21:43:31
10	Jonas Nockert	0.05 s	C++	2017-05-14 13:15:04

#	User	Runtime	Language	Date
1	Vilhelm Melkstam	0.29 s	Go	2022-02-17 15:50:45
2	Iker Lissarrague	0.33 s	Go	2022-03-14 22:49:13
3	Nathan Lee	0.65 s	Go	2025-09-21 15:59:16

#	User	Runtime	Language	Date
1	Tomas Möre	0.16 s	Haskell	2019-01-31 20:07:50
2	Isaac Arvestad	0.21 s	Haskell	2019-02-01 23:26:37
3	Hidden user	0.29 s	Haskell	2022-02-28 03:15:07
4	Intrets	0.96 s	Haskell	2018-10-15 01:53:11
5	Vasiliy Kevroletin	1.49 s	Haskell	2018-05-17 04:07:21

#	User	Runtime	Language	Date
1	Alvin Lee	0.23 s	Java	2025-10-01 20:25:23
2	Bjørn Dons	0.25 s	Java	2018-10-10 02:29:44
3	Crystal Sharpe	0.28 s	Java	2020-09-01 06:36:50
4	Nikolay Nizovkin	0.28 s	Java	2022-05-08 16:59:43
5	Logan Pipes	0.28 s	Java	2023-02-21 16:09:15
6	Hà Minh Ngọc	0.29 s	Java	2016-05-25 10:39:57
7	Mehdi Maick	0.29 s	Java	2018-08-23 14:36:59
8	Mason Wiedow	0.31 s	Java	2025-10-23 23:12:51
9	José Vander Meulen	0.35 s	Java	2018-03-06 20:31:07
10	Jimmy Dinh	0.35 s	Java	2023-09-08 06:09:09

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.52 s	JavaScript (SpiderMonkey)	2023-07-06 10:52:30

#	User	Runtime	Language	Date
1	Adam Koprowski	0.72 s	Kotlin	2020-09-04 23:44:52
2	Adam Rankin	1.01 s	Kotlin	2023-09-13 20:31:15
3	Phường Lên	1.04 s	Kotlin	2020-05-24 09:41:31

#	User	Runtime	Language	Date
1	Caleb Austin	0.76 s	Lua	2024-12-09 20:25:28

#	User	Runtime	Language	Date
1	Thomas Feld	0.19 s	Python 2	2020-06-24 09:27:57
2	Sergey Pashkovsky	0.21 s	Python 2	2017-12-01 07:32:04
3	Oskar Larsson	0.21 s	Python 2	2019-04-14 14:50:06
4	Torstein Strømme	0.22 s	Python 2	2017-11-23 17:29:15
5	Viktor Bello Thomsen	0.22 s	Python 2	2019-09-25 17:03:48
6	Jonas Höglund	0.23 s	Python 2	2015-09-20 01:53:42
7	Maj Stenmark	0.23 s	Python 2	2018-05-12 17:49:36
8	Brandon Sovran	0.25 s	Python 2	2022-03-12 19:55:54
9	Steven Tran	0.30 s	Python 2	2018-02-08 13:27:18
10	Juliang Li	0.31 s	Python 2	2018-02-02 06:19:29

#	User	Runtime	Language	Date
1	Hidden user	0.18 s	Python 3	2025-02-12 22:31:07
2	Laith Bohsali	0.19 s	Python 3	2025-02-12 22:13:49
3	Leon Tham	0.20 s	Python 3	2020-09-06 11:51:03
4	Joshua Coward	0.20 s	Python 3	2021-09-27 06:07:46
5	Jacob Molin	0.21 s	Python 3	2025-02-06 20:52:01
6	Måns Magnusson	0.22 s	Python 3	2022-10-16 23:02:36
7	Jorke de Vlas	0.22 s	Python 3	2025-02-20 15:06:36
8	crapcode	0.23 s	Python 3	2023-10-11 18:47:57
9	Karolina Gil	0.23 s	Python 3	2025-03-08 10:30:17
10	Wenbo Yang	0.23 s	Python 3	2025-03-24 04:11:48

#	User	Runtime	Language	Date
1	André Danielsson	1.49 s	Ruby	2016-09-19 08:53:50
2	Hidden user	1.58 s	Ruby	2019-06-01 14:26:11

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-08-24 18:04:30
2	Rasmus Andersson	0.04 s	Rust	2024-02-07 10:48:29
3	Emil Hultcrantz	0.04 s	Rust	2025-02-04 16:55:12
4	Sebastian Refsnes	0.05 s	Rust	2025-03-09 13:39:05
5	Eric Pinter	0.06 s	Rust	2020-10-25 04:55:44
6	Pahlevi Fikri Auliya	0.06 s	Rust	2020-11-12 05:08:58
7	Christoffer Andersson	0.06 s	Rust	2024-02-05 19:53:28
8	Chen Weikang	0.07 s	Rust	2019-01-21 01:22:14
9	Chaoyi Yin	0.07 s	Rust	2019-01-24 02:16:19
10	Zhixing Zhang	0.07 s	Rust	2020-04-17 12:29:42

#	User	Runtime	Language	Date
1	Hidden user	0.24 s	Swift	2024-09-08 09:53:34

#	User	Length	Language	Date
1	Thibault Raffaillac	855	C	2019-10-05 18:18:11
2	Mirel Cosulschi	928	C	2023-11-24 12:04:06
3	David Ludwig	970	C	2019-10-20 08:49:06
4	Lawry Sorenson	1038	C	2024-09-18 18:23:09
5	Jesper Öqvist	1045	C	2018-05-13 20:14:27
6	Tanner Hoke	1139	C	2019-02-02 23:05:02
7	Håvard Krogstie	1265	C	2020-07-19 13:50:56
8	Axel Delbom	1368	C	2021-10-11 17:38:31
9	Garðar Ingvarsson	1417	C	2019-02-18 01:53:42
10	Jón Steinn Elíasson	1585	C	2020-03-29 21:48:25

#	User	Length	Language	Date
1	Simon Ståhlberg	1948	C#	2014-02-10 14:02:07
2	Nathan Andrews	2032	C#	2024-09-23 00:31:00
3	Gustav Kalander	8112	C#	2018-05-13 20:59:53

#	User	Length	Language	Date
1	Keshav Dharshan	460	C++	2025-02-13 02:09:51
2	Vebjørn Søreide Øiestad	572	C++	2025-02-19 16:00:48
3	William Gan	591	C++	2017-08-13 06:22:18
4	Fereshteh Baradaran	592	C++	2022-07-13 17:52:27
5	Alfredo Beaumont	606	C++	2019-01-01 16:21:28
6	Evan Michael Bailey	632	C++	2022-10-15 19:19:40
7	Sidhant Bansal	633	C++	2018-01-30 15:24:57
8	Roger Chen	635	C++	2021-08-22 22:16:04
9	Nathan Leake	642	C++	2018-02-01 22:42:43
10	Lee Bing Heng	645	C++	2022-12-01 16:21:24

#	User	Length	Language	Date
1	Vilhelm Melkstam	1225	Go	2022-02-17 15:50:45
2	Nathan Lee	1374	Go	2025-09-21 15:59:16
3	Iker Lissarrague	1453	Go	2022-03-14 22:49:13

#	User	Length	Language	Date
1	Intrets	1215	Haskell	2018-10-15 01:53:11
2	Vasiliy Kevroletin	1336	Haskell	2018-05-17 04:07:21
3	Hidden user	1779	Haskell	2022-02-28 03:23:18
4	Isaac Arvestad	2486	Haskell	2019-02-01 23:26:37
5	Tomas Möre	7767	Haskell	2019-01-31 20:07:50

#	User	Length	Language	Date
1	Aditya Kaushik	1051	Java	2020-02-18 13:02:09
2	Jannik Olbrich	1152	Java	2020-01-04 13:56:13
3	Crystal Sharpe	1302	Java	2020-09-01 06:36:50
4	William Quiroga	1362	Java	2017-11-13 05:13:45
5	Tal Belkind	1391	Java	2025-03-20 03:21:58
6	Kevin Wang	1427	Java	2018-07-05 22:16:17
7	Paula Arnold	1457	Java	2018-08-15 15:38:14
8	Molly Sun	1461	Java	2021-03-16 09:48:58
9	Frank Ruskey	1463	Java	2017-01-08 08:31:58
10	Andrew McGehee	1505	Java	2018-05-19 08:57:57

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1385	JavaScript (SpiderMonkey)	2023-07-06 10:52:30

#	User	Length	Language	Date
1	Adam Koprowski	1637	Kotlin	2020-09-04 23:44:52
2	Adam Rankin	1725	Kotlin	2023-09-13 20:31:15
3	Phường Lên	3075	Kotlin	2020-05-24 09:41:31

#	User	Length	Language	Date
1	Caleb Austin	991	Lua	2024-12-09 20:25:28

#	User	Length	Language	Date
1	Thomas Feld	432	Python 2	2020-06-24 09:09:12
2	Oskar Larsson	732	Python 2	2019-04-14 14:50:06
3	Andreas Björklund	846	Python 2	2019-08-14 16:30:31
4	Brandon Sovran	904	Python 2	2022-03-12 19:55:54
5	Thore Husfeldt	965	Python 2	2018-10-17 11:27:09
6	Jordan James	1054	Python 2	2018-02-08 02:46:44
7	Sigurður Jens Albertsson	1056	Python 2	2018-02-24 23:12:51
8	Maj Stenmark	1066	Python 2	2018-05-12 17:49:36
9	Viktor Bello Thomsen	1069	Python 2	2019-09-25 17:04:42
10	Juliang Li	1123	Python 2	2018-02-02 06:19:29

#	User	Length	Language	Date
1	Tristan Cohen-Rider	317	Python 3	2025-03-21 15:40:32
2	Avery	424	Python 3	2025-09-03 03:26:23
3	Mark Joseph Kenny	516	Python 3	2025-10-23 23:44:44
4	Bill Jin	621	Python 3	2025-03-09 21:56:37
5	Krish Shah	666	Python 3	2025-10-10 04:15:11
6	Wilbert Chu	714	Python 3	2024-09-25 18:03:53
7	Jorke de Vlas	717	Python 3	2025-02-20 15:06:36
8	Caleb Dastrup	749	Python 3	2024-09-17 01:31:17
9	crapcode	751	Python 3	2023-10-11 18:35:24
10	Hidden user	759	Python 3	2021-03-18 22:36:11

#	User	Length	Language	Date
1	Hidden user	546	Ruby	2019-06-01 14:26:11
2	André Danielsson	1145	Ruby	2016-09-19 08:47:42

#	User	Length	Language	Date
1	Sebastian Refsnes	1614	Rust	2025-03-09 13:32:49
2	Chen Weikang	2067	Rust	2019-01-21 01:22:14
3	Hidden user	2094	Rust	2025-03-09 15:43:07
4	Chaoyi Yin	2097	Rust	2019-01-24 02:16:19
5	Eric Pinter	2179	Rust	2020-10-25 04:55:44
6	Emil Hultcrantz	2417	Rust	2025-02-04 16:55:12
7	Zhixing Zhang	2638	Rust	2020-04-17 12:29:42
8	Mckinley Xie	3069	Rust	2025-02-12 22:35:27
9	Pahlevi Fikri Auliya	3168	Rust	2020-11-12 05:08:58
10	Rasmus Andersson	3305	Rust	2024-02-05 20:03:06

#	User	Length	Language	Date
1	Hidden user	1739	Swift	2024-09-08 09:53:34

Solution running time distribution