Problem A
Horror Film Night — Problem Statistics

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Submissions	2872
Accepted submissions	1068
Submission ratio	37.19%
Authors	730
Full solves [?]	635
Full solve Ratio	86.99%

#	User	Runtime	Language	Date
1	Martin Wass	0.03 s	C	2017-11-18 20:05:30
2	Garðar Ingvarsson	0.03 s	C	2019-05-09 01:53:55
3	Hidden user	0.15 s	C	2019-04-12 07:54:24
4	Ivan Petrov	0.15 s	C	2019-07-10 06:42:41
5	Sambit Palit	0.18 s	C	2020-11-25 22:48:46
6	Nick Hargrove	0.18 s	C	2021-12-15 00:06:13
7	Raymond Yang	0.20 s	C	2021-06-30 01:16:23

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.17 s	C#	2019-07-14 09:58:30
2	Akib Ibn Zahid	0.25 s	C#	2025-11-07 10:49:22
3	Jens Erik	0.97 s	C#	2025-11-19 00:58:34
4	Simon Thillemann Nielsen	0.97 s	C#	2025-11-19 00:59:13
5	Sam Crerar	1.19 s	C#	2022-03-26 15:14:59
6	David Parker	1.20 s	C#	2022-03-16 21:38:26
7	Mark Lekkerkerker	1.24 s	C#	2018-05-01 11:11:07
8	Louie Waterfall	1.38 s	C#	2022-03-26 16:42:42
9	Dick Appel	1.61 s	C#	2018-05-02 20:14:38

#	User	Runtime	Language	Date
1	Mara	0.02 s	C++	2019-09-14 20:57:35
2	Brandon Zhang	0.02 s	C++	2024-09-02 06:02:38
3	Martin Wass	0.03 s	C++	2017-11-18 18:11:07
4	Harrison Shen	0.03 s	C++	2020-02-14 05:56:06
5	Frank Endriss	0.03 s	C++	2021-02-05 21:14:27
6	Hieronymus de Jong	0.04 s	C++	2018-05-11 12:30:07
7	Bernhard Hahn	0.04 s	C++	2018-05-20 17:01:27
8	Donald Dong	0.04 s	C++	2018-05-30 02:51:44
9	Nick Overdijk	0.04 s	C++	2019-09-14 20:28:06
10	Hidden user	0.05 s	C++	2024-12-10 05:01:36

#	User	Runtime	Language	Date
1	Hidden user	0.19 s	Common Lisp	2019-07-27 06:04:44

#	User	Runtime	Language	Date
1	Norbert Voelker	0.28 s	Go	2021-12-01 21:30:17
2	Steven Cheng	1.71 s	Go	2020-06-02 20:59:54

#	User	Runtime	Language	Date
1	Shreyas Jamadagni	0.12 s	Java	2025-03-11 08:43:37
2	Dat Vo Nguyen Tien	0.13 s	Java	2022-01-25 08:51:29
3	Leon Wang	0.13 s	Java	2024-10-11 19:29:39
4	Leo Pan	0.14 s	Java	2022-10-20 20:58:52
5	Miras Abdishev	0.15 s	Java	2022-10-21 01:12:46
6	Samuel Klingström	0.16 s	Java	2020-08-12 18:25:05
7	Jack Fang	0.16 s	Java	2024-10-17 00:16:39
8	Martin Wass	0.28 s	Java	2017-11-18 19:17:00
9	Elias Moons	0.48 s	Java	2018-03-22 07:57:20
10	Jarik Karsten	0.48 s	Java	2018-09-27 17:49:23

#	User	Runtime	Language	Date
1	Minh Trang Nguyen	0.56 s	JavaScript (Node.js)	2025-10-31 16:24:57

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.34 s	JavaScript (SpiderMonkey)	2023-07-25 14:12:12
2	Bjørn Chr. Soltvedt	0.40 s	JavaScript (SpiderMonkey)	2018-07-07 13:58:48

#	User	Runtime	Language	Date
1	Hidden user	1.06 s	Kotlin	2020-05-10 05:51:29
2	Chelsea Hoernemann	1.09 s	Kotlin	2022-11-11 20:20:18
3	Adam Rankin	1.44 s	Kotlin	2023-09-15 21:16:15

#	User	Runtime	Language	Date
1	Maj Stenmark	0.30 s	Python 2	2018-06-25 11:28:11
2	Johan Lyts	0.30 s	Python 2	2021-01-16 13:59:11
3	Nishka Awasthi	0.30 s	Python 2	2022-10-21 04:10:57
4	Gertjan Kloosterman	0.36 s	Python 2	2018-04-30 13:18:00
5	Got Yaoi	0.40 s	Python 2	2018-04-16 04:09:08
6	Andreas Björklund	0.40 s	Python 2	2019-10-22 06:16:37
7	Chris Winkler	0.41 s	Python 2	2018-04-27 20:46:01
8	Sigurður Jens Albertsson	0.42 s	Python 2	2017-11-07 17:06:06
9	Asger Hautop Drewsen	0.57 s	Python 2	2018-10-04 15:25:03
10	Oskar Haarklou Veileborg	0.58 s	Python 2	2018-10-29 21:14:10

#	User	Runtime	Language	Date
1	BOHAO ZHANG	0.31 s	Python 3	2020-11-15 07:26:31
2	Hank Jacoby	0.31 s	Python 3	2026-02-03 19:19:20
3	Aditya Behrani	0.32 s	Python 3	2022-10-20 22:02:56
4	Varun Asuri	0.33 s	Python 3	2022-10-20 22:39:01
5	WARRICK HE	0.33 s	Python 3	2022-10-21 01:38:33
6	Pedro Sugiyama	0.35 s	Python 3	2022-10-21 01:14:55
7	Justin Malcolm Ayuste	0.35 s	Python 3	2025-10-22 16:28:24
8	Hidden user	0.37 s	Python 3	2022-08-07 19:31:06
9	sebastián Magaña	0.37 s	Python 3	2025-05-15 19:49:14
10	Munir Kudrati-Plummer	0.37 s	Python 3	2026-02-02 00:07:21

#	User	Runtime	Language	Date
1	Thomas Feld	0.72 s	Ruby	2026-01-29 12:40:01

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-03-10 13:58:35
2	Joep Jansen	0.03 s	Rust	2021-02-21 14:42:44
3	HuaiYuan Jing	0.07 s	Rust	2025-10-06 16:44:38

#	User	Length	Language	Date
1	Ivan Petrov	657	C	2019-07-10 06:42:41
2	Sambit Palit	705	C	2020-11-25 22:48:46
3	Martin Wass	952	C	2017-11-18 20:05:30
4	Nick Hargrove	1059	C	2021-12-15 00:06:13
5	Hidden user	1067	C	2019-04-12 07:54:24
6	Garðar Ingvarsson	1134	C	2019-05-09 01:51:31
7	Raymond Yang	1438	C	2021-06-30 01:16:23

#	User	Length	Language	Date
1	Mark Lekkerkerker	1954	C#	2018-05-01 11:33:54
2	Dick Appel	1958	C#	2018-05-02 20:14:38
3	Louie Waterfall	2390	C#	2022-03-26 16:42:42
4	Akib Ibn Zahid	2620	C#	2025-11-07 10:49:22
5	Jens Erik	4025	C#	2025-11-19 00:58:34
6	Simon Thillemann Nielsen	4025	C#	2025-11-19 00:59:13
7	Sam Crerar	4398	C#	2022-03-26 15:14:59
8	David Parker	5812	C#	2022-03-16 21:38:26
9	Andriy Zyevakov	8801	C#	2019-07-14 09:58:30

#	User	Length	Language	Date
1	Anvit Sinha	195	C++	2022-10-28 02:20:56
2	Clement Oh	386	C++	2023-10-18 00:40:57
3	Hyunjun Lee	409	C++	2023-05-10 01:32:31
4	Eric Zhang	432	C++	2024-10-17 18:18:27
5	Xiaoyang Xu	443	C++	2025-10-19 22:39:25
6	Maciej Sidor	469	C++	2023-05-16 11:02:09
7	Emmanuel Anaya	474	C++	2020-10-22 05:37:22
8	陳子濬	480	C++	2019-09-21 05:05:37
9	Ethan Tran	497	C++	2025-04-14 08:04:54
10	Ankur Garg	498	C++	2020-11-13 00:30:17

#	User	Length	Language	Date
1	Hidden user	1508	Common Lisp	2019-07-27 03:43:28

#	User	Length	Language	Date
1	Norbert Voelker	1313	Go	2021-12-01 21:30:17
2	Steven Cheng	1377	Go	2020-06-02 20:59:54

#	User	Length	Language	Date
1	Quang Long Huynh	762	Java	2021-08-31 00:41:10
2	Aaron Teetor	806	Java	2019-04-03 00:19:25
3	Conor Perreault	832	Java	2020-10-13 14:23:37
4	Conor Perreault	832	Java	2021-08-17 19:23:35
5	Jiru Xu	842	Java	2017-10-30 20:21:41
6	Eric Leow Yu Quan	847	Java	2021-04-28 07:51:06
7	Kevin Sun	953	Java	2021-06-30 21:53:25
8	Doug Goodman	994	Java	2017-12-21 20:03:15
9	Martin Wass	1019	Java	2017-11-18 19:17:00
10	Lakouam Issam	1040	Java	2018-09-30 00:04:49

#	User	Length	Language	Date
1	Minh Trang Nguyen	1320	JavaScript (Node.js)	2025-10-31 16:24:57

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	594	JavaScript (SpiderMonkey)	2018-07-07 13:58:48
2	Christian Pilegaard Cederquist	831	JavaScript (SpiderMonkey)	2023-07-25 14:12:12

#	User	Length	Language	Date
1	Hidden user	1419	Kotlin	2020-05-10 05:51:29
2	Chelsea Hoernemann	2094	Kotlin	2022-11-11 20:20:18
3	Adam Rankin	2489	Kotlin	2023-09-15 21:16:15

#	User	Length	Language	Date
1	Måns Magnusson	377	Python 2	2017-10-31 12:17:54
2	Andreas Björklund	394	Python 2	2019-10-22 06:16:37
3	Maj Stenmark	454	Python 2	2018-06-25 11:28:11
4	Johan Lyts	484	Python 2	2021-01-16 14:03:27
5	Asger Hautop Drewsen	708	Python 2	2018-10-04 15:25:03
6	Oskar Haarklou Veileborg	708	Python 2	2018-10-29 21:14:10
7	Sigurður Jens Albertsson	730	Python 2	2017-11-07 17:06:06
8	Nishka Awasthi	811	Python 2	2022-10-21 04:10:57
9	Got Yaoi	1037	Python 2	2018-04-16 04:52:05
10	Lars Åström	1051	Python 2	2018-06-28 21:01:28

#	User	Length	Language	Date
1	Peter Jin	123	Python 3	2022-10-28 03:08:56
2	Michael Goldwasser	148	Python 3	2025-10-10 15:18:01
3	Harry Zhang	153	Python 3	2023-12-10 07:36:36
4	Varun Asuri	210	Python 3	2022-10-28 00:18:10
5	Josenildo Silva	233	Python 3	2018-04-17 01:17:06
6	Ahmed Chamseddine	238	Python 3	2025-09-01 14:38:24
7	Hidden user	273	Python 3	2021-05-06 13:24:03
8	Munir Kudrati-Plummer	285	Python 3	2026-02-02 00:22:19
9	Ciara Godwin	317	Python 3	2017-12-02 13:01:06
10	Doris Brown	342	Python 3	2018-12-07 22:43:09

#	User	Length	Language	Date
1	Thomas Feld	91	Ruby	2026-01-29 12:56:04

#	User	Length	Language	Date
1	Joep Jansen	1009	Rust	2021-02-21 15:05:12
2	HuaiYuan Jing	1360	Rust	2025-10-06 16:44:38
3	Vincent Lagerros	19284	Rust	2024-08-09 17:47:24

Solution running time distribution