Problem A
Cinema Crowds 2 — Problem Statistics

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Submissions	2499
Accepted submissions	1266
Submission ratio	50.66%
Authors	1159
Full solves [?]	1094
Full solve Ratio	94.39%

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	APL	2023-10-02 12:26:46

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-09-26 06:03:53
2	Chenzhang Hu	0.01 s	Bash	2025-09-12 15:52:29

#	User	Runtime	Language	Date
1	Mikael Fiala-Lundström	0.02 s	C#	2021-10-29 00:20:20
2	Hidden user	0.02 s	C#	2021-11-04 22:05:25
3	Adrian Bay Dorph	0.02 s	C#	2021-11-22 22:39:42
4	Toby Maynard	0.02 s	C#	2022-01-03 23:27:46
5	Karoline Øijorden	0.02 s	C#	2022-02-10 16:43:57
6	Göran Andersson	0.03 s	C#	2022-05-15 18:37:40
7	Gregory Sinclair	0.04 s	C#	2023-11-28 22:15:31
8	Գոռ Բաղդասարյան	0.04 s	C#	2024-07-06 11:59:25
9	Brandon	0.04 s	C#	2025-05-29 05:28:28
10	Sano Gharzani	0.05 s	C#	2023-12-15 13:45:19

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-08-17 18:49:35

#	User	Runtime	Language	Date
1	Niclas Søgaard Hjortkjær	0.07 s	Go	2021-11-26 16:15:39
2	Norbert Voelker	0.08 s	Go	2021-10-19 13:38:29
3	Jack Kryger Sørensen	0.08 s	Go	2021-11-04 08:34:20
4	Markus Johansen	0.08 s	Go	2021-11-19 21:24:30
5	Lukas L. Hjelmstrand	0.08 s	Go	2021-11-26 16:15:09

#	User	Runtime	Language	Date
1	Ng Tek In	0.00 s	Haskell	2022-08-11 11:39:35
2	A Person	0.00 s	Haskell	2023-03-30 04:14:11
3	Steinar Simonnes	0.00 s	Haskell	2023-10-30 18:13:32
4	Charley Sheaffer	0.00 s	Haskell	2023-11-03 05:19:42
5	Sebastian Banert	0.00 s	Haskell	2024-07-17 19:33:54
6	Brent Yorgey	0.01 s	Haskell	2021-10-26 12:34:20
7	Hidden user	0.01 s	Haskell	2021-10-31 16:06:45
8	Anders Aarsæther	0.01 s	Haskell	2021-11-19 19:39:00
9	Jan Hrček	0.01 s	Haskell	2021-11-23 07:26:30
10	Mason Barnhill	0.01 s	Haskell	2023-05-30 22:26:51

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2025-03-03 11:18:47
2	Joshua Chin	0.04 s	Java	2025-07-24 19:04:50
3	Ku Brian	0.05 s	Java	2024-05-08 07:53:39
4	Achim Ahlers	0.05 s	Java	2024-10-06 21:24:35
5	Vu Minh Hieu	0.06 s	Java	2021-10-16 21:38:36
6	Crystal Sharpe	0.06 s	Java	2021-10-31 03:26:34
7	Joachim Borup	0.06 s	Java	2021-11-03 20:47:42
8	Asmus Tørsleff	0.06 s	Java	2021-11-03 21:07:48
9	Dylan Smith	0.06 s	Java	2021-11-14 21:32:31
10	Shashank Singh	0.06 s	Java	2021-11-20 11:47:39

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (Node.js)	2025-02-01 22:19:08
2	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2022-01-11 13:20:51
3	Chris Wong	0.42 s	JavaScript (Node.js)	2022-01-12 17:33:37
4	Niamh Limerick	0.42 s	JavaScript (Node.js)	2022-02-15 14:11:02

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2021-10-12 13:39:06
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-18 23:56:33
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-09 21:10:50

#	User	Runtime	Language	Date
1	Hidden user	0.34 s	Julia	2025-04-08 08:45:27
2	Timothy Gaede	0.52 s	Julia	2024-06-02 07:45:46
3	Danny Robinson	0.55 s	Julia	2023-09-26 05:59:02

#	User	Runtime	Language	Date
1	Nicholas Johnson	0.12 s	Kotlin	2021-11-16 04:52:10
2	Jacob Huebner	0.13 s	Kotlin	2022-04-14 00:59:03
3	Adam Rankin	0.18 s	Kotlin	2023-05-03 00:08:24
4	Emil Wihlander	0.18 s	Kotlin	2023-07-28 16:04:25
5	Sergey Jakobsen	0.19 s	Kotlin	2021-10-25 23:20:12
6	Troy Warmboe	0.19 s	Kotlin	2023-04-12 01:20:12
7	Martijn Muijsers	0.20 s	Kotlin	2024-05-31 13:09:20
8	Ola Sundell	0.21 s	Kotlin	2023-09-08 15:48:42

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2023-07-28 23:16:36

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2021-12-02 08:57:49
2	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-19 00:35:26

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.02 s	Python 2	2022-06-17 16:23:45
2	Johan Lyts	0.03 s	Python 2	2021-10-24 21:02:50
3	Yanmarshus Bachtiar	0.03 s	Python 2	2021-10-31 05:13:36
4	Andreas Björklund	0.03 s	Python 2	2021-11-10 07:34:07
5	Måns Magnusson	0.03 s	Python 2	2022-01-07 17:53:24

#	User	Runtime	Language	Date
1	Elin Andersson	0.04 s	Python 3	2022-06-14 18:49:37
2	Frode Sandberg	0.04 s	Python 3	2022-06-16 23:31:40
3	Hasan Kalzi	0.04 s	Python 3	2022-06-17 16:23:30
4	Petr	0.04 s	Python 3	2022-06-17 18:02:38
5	Kenneth Jensen	0.04 s	Python 3	2022-07-06 16:30:57
6	Josh Askin	0.04 s	Python 3	2022-07-08 18:22:05
7	Sebastian Pucher	0.04 s	Python 3	2022-07-18 21:37:23
8	Kattis Speedrun	0.04 s	Python 3	2022-07-22 01:13:31
9	Rajul Srivastava	0.04 s	Python 3	2022-07-27 11:45:30
10	Hidden user	0.04 s	Python 3	2022-08-01 07:22:19

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Ruby	2021-10-15 19:18:08
2	Thomas Feld	0.06 s	Ruby	2023-01-27 13:27:07
3	Drew Wilson	0.06 s	Ruby	2023-06-02 01:50:50

#	User	Length	Language	Date
1	Thomas Feld	29	APL	2023-10-02 12:26:46

#	User	Length	Language	Date
1	Chenzhang Hu	44	Bash	2025-09-12 15:52:29
2	Danny Robinson	46	Bash	2023-09-26 06:03:53

#	User	Length	Language	Date
1	Jonatan Altebro	161	C	2025-03-06 21:54:29
2	Philipp Hergenhahn	181	C	2025-01-01 19:23:12
3	Andrew Roberts	223	C	2021-12-29 21:28:22
4	Matthew Weston	226	C	2022-02-02 13:42:50
5	Matthew Hartono	226	C	2022-10-24 18:46:35
6	Julian Duniec	246	C	2023-08-27 16:58:32
7	Mirel Cosulschi	247	C	2024-09-24 13:39:24
8	Hidden user	261	C	2025-03-30 04:21:43
9	Mido	277	C	2024-12-31 12:43:27
10	Merih Bora Poçan	279	C	2023-09-29 09:27:44

#	User	Length	Language	Date
1	Gregory Sinclair	207	C#	2023-11-28 22:15:31
2	Göran Andersson	646	C#	2022-05-15 18:37:40
3	Գոռ Բաղդասարյան	717	C#	2024-07-06 11:59:25
4	Toby Maynard	753	C#	2022-01-03 23:27:46
5	Umar Rasyid	788	C#	2025-02-21 02:39:59
6	Adrian Bay Dorph	897	C#	2021-11-22 22:39:42
7	Karoline Øijorden	936	C#	2022-02-10 16:43:57
8	Hidden user	950	C#	2021-11-04 22:05:25
9	Brandon	978	C#	2025-05-29 05:28:28
10	Sano Gharzani	1034	C#	2023-12-15 13:45:19

#	User	Length	Language	Date
1	Frans Meulenbroeks	107	C++	2025-02-11 07:31:11
2	ㄌㄇㄒ	175	C++	2023-10-20 03:24:47
3	Grae Yeandle	187	C++	2021-10-30 10:39:18
4	蕭宇恒	187	C++	2024-09-13 10:42:26
5	卡比獸	188	C++	2024-11-06 04:33:26
6	黃柏瑞	190	C++	2025-12-14 04:16:39
7	陳彤	195	C++	2023-11-10 17:09:58
8	Đậu Huy Minh	205	C++	2023-10-03 05:41:27
9	蔡童彥	209	C++	2024-12-01 03:06:16
10	Chile	211	C++	2025-11-15 15:54:42

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	439	F#	2022-08-17 18:49:35

#	User	Length	Language	Date
1	Markus Johansen	286	Go	2021-11-19 21:24:30
2	Lukas L. Hjelmstrand	302	Go	2021-11-26 16:15:09
3	Jack Kryger Sørensen	337	Go	2021-11-04 08:34:20
4	Niclas Søgaard Hjortkjær	493	Go	2021-11-26 16:15:39
5	Norbert Voelker	637	Go	2021-10-19 13:38:29

#	User	Length	Language	Date
1	Sebastian Banert	132	Haskell	2024-07-17 19:33:54
2	A Person	217	Haskell	2023-03-30 04:14:11
3	Charley Sheaffer	222	Haskell	2023-11-03 05:19:42
4	Steinar Simonnes	241	Haskell	2023-10-30 18:13:32
5	Mason Barnhill	256	Haskell	2023-05-30 22:26:51
6	Anders Aarsæther	333	Haskell	2021-11-19 19:39:00
7	Jan Hrček	342	Haskell	2021-11-23 07:26:30
8	Ng Tek In	380	Haskell	2022-08-11 11:39:35
9	Brent Yorgey	7825	Haskell	2021-10-26 12:34:20
10	Hidden user	14892	Haskell	2021-10-31 16:06:45

#	User	Length	Language	Date
1	Win Htet Aung	316	Java	2022-02-02 04:35:07
2	PaingSoeOo	356	Java	2022-02-02 05:19:18
3	Ian Mahendra Setiawan	359	Java	2025-04-19 04:16:35
4	David Vinje	366	Java	2021-11-26 16:17:17
5	Jason Liu	366	Java	2023-05-10 01:46:47
6	Nathaniel Lukas Christianto	376	Java	2023-12-26 12:53:36
7	Hidden user	384	Java	2022-02-02 04:42:20
8	Marshall D Feng	403	Java	2021-12-30 17:40:49
9	Gustav Andersson	416	Java	2022-02-01 11:27:22
10	Maciej Lewandowski	432	Java	2022-01-08 01:07:06

#	User	Length	Language	Date
1	Howard Tin Chi Chan	470	JavaScript (Node.js)	2022-01-11 13:20:51
2	Hidden user	777	JavaScript (Node.js)	2025-02-01 22:19:08
3	Chris Wong	892	JavaScript (Node.js)	2022-01-12 17:33:37
4	Niamh Limerick	943	JavaScript (Node.js)	2022-02-15 14:11:02

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	88	JavaScript (SpiderMonkey)	2023-01-18 23:56:33
2	Jimmy Gustafsson	104	JavaScript (SpiderMonkey)	2024-07-09 21:10:50
3	Bjørn Chr. Soltvedt	235	JavaScript (SpiderMonkey)	2021-10-12 13:39:06

#	User	Length	Language	Date
1	Danny Robinson	78	Julia	2023-09-26 05:59:02
2	Hidden user	200	Julia	2025-04-08 07:55:44
3	Timothy Gaede	624	Julia	2024-06-02 07:45:46

#	User	Length	Language	Date
1	Emil Wihlander	299	Kotlin	2023-07-28 16:04:25
2	Sergey Jakobsen	383	Kotlin	2021-10-25 23:20:12
3	Adam Rankin	399	Kotlin	2023-05-03 00:08:24
4	Jacob Huebner	401	Kotlin	2022-04-14 00:59:03
5	Troy Warmboe	500	Kotlin	2023-04-12 01:20:12
6	Martijn Muijsers	618	Kotlin	2024-05-31 13:09:20
7	Ola Sundell	661	Kotlin	2023-09-08 15:48:42
8	Nicholas Johnson	2145	Kotlin	2021-11-16 04:52:10

#	User	Length	Language	Date
1	Renate	256	PHP	2023-07-28 23:16:36

#	User	Length	Language	Date
1	Hakan Kjellerstrand	320	Prolog	2023-02-19 00:35:26
2	Andriy Zyevakov	422	Prolog	2021-12-02 08:57:49

#	User	Length	Language	Date
1	Andreas Björklund	162	Python 2	2021-11-10 07:34:07
2	Johan Lyts	180	Python 2	2021-10-24 21:02:50
3	Yanmarshus Bachtiar	231	Python 2	2021-10-31 05:13:36
4	Måns Magnusson	341	Python 2	2022-01-07 17:53:24
5	Hasan Kalzi	623	Python 2	2021-12-08 22:20:00

#	User	Length	Language	Date
1	Benjamin Z White	89	Python 3	2023-05-17 18:46:47
2	Clement Oh	89	Python 3	2023-08-08 13:23:16
3	Morten Clausen	96	Python 3	2022-10-21 20:11:55
4	Thomas Feld	104	Python 3	2022-08-25 13:12:23
5	David Worley	106	Python 3	2025-11-19 22:44:21
6	Ahmed Chamseddine	109	Python 3	2023-10-10 09:55:43
7	Harry Zhang	113	Python 3	2023-02-07 20:33:10
8	Brandon Zhang	115	Python 3	2022-05-21 11:20:38
9	David Aldenbro	122	Python 3	2025-03-15 12:47:16
10	Si Jie Tan	124	Python 3	2026-01-12 01:42:45

#	User	Length	Language	Date
1	Thomas Feld	58	Ruby	2023-01-27 13:27:07
2	Hidden user	108	Ruby	2021-10-15 19:18:08
3	Drew Wilson	198	Ruby	2023-06-02 01:50:50

#	User	Length	Language	Date
1	Vincent Lagerros	411	Rust	2025-01-30 21:32:24
2	Artur Khuziakhmetov	472	Rust	2022-07-24 12:30:07
3	David Rasch	543	Rust	2021-10-18 12:47:54
4	Isak Jägberg	649	Rust	2024-10-23 11:47:40
5	Peter Due Jensen	661	Rust	2021-11-26 16:28:36
6	Pankajkumar Patro	679	Rust	2024-08-31 14:21:44
7	Bas Dirks	721	Rust	2022-01-03 23:35:49
8	Alex G	752	Rust	2022-02-07 23:02:39
9	Hidden user	846	Rust	2021-10-23 14:23:04
10	Alice Ryhl	872	Rust	2021-11-26 16:10:19

Solution running time distribution