Problem A
Hidden Camera — Problem Statistics

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Submissions	688
Accepted submissions	159
Submission ratio	23.11%
Authors	126
Accepted authors	95
Author ratio	75.40%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2019-07-01 09:37:01
2	Florian ten Napel	0.00 s	C	2025-02-25 02:01:53

#	User	Runtime	Language	Date
1	CC8	0.03 s	C#	2016-08-11 05:22:57
2	Wong Hoe Cheong	0.03 s	C#	2016-08-11 07:36:47

#	User	Runtime	Language	Date
1	Neal Zane	0.00 s	C++	2015-12-13 19:01:28
2	Lin Lee	0.00 s	C++	2016-01-02 06:04:25
3	Paul Jungeblut	0.00 s	C++	2017-06-27 23:34:19
4	Damien Galant	0.00 s	C++	2017-08-19 15:20:58
5	Minh Phạm	0.00 s	C++	2020-11-22 10:54:14
6	Jérôme Mayolet	0.00 s	C++	2022-08-31 10:25:44
7	Zhenting Zhu	0.00 s	C++	2024-10-28 00:55:46
8	Nguyen Nguyen	0.01 s	C++	2014-11-30 23:17:17
9	David Wärn	0.01 s	C++	2015-04-23 16:33:05
10	David Venhoek	0.01 s	C++	2016-04-28 11:44:36

#	User	Runtime	Language	Date
1	Josenildo Silva	0.08 s	Haskell	2018-04-22 18:04:50

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.07 s	Java	2024-01-02 17:09:08
2	Matthias Döpmann	0.12 s	Java	2018-04-05 18:34:03
3	Celestine Lau	0.13 s	Java	2016-08-16 03:30:40
4	Lee Chee Meng	0.13 s	Java	2016-08-26 14:58:49
5	CC8	0.14 s	Java	2016-08-11 09:30:35
6	Jonas Mossin Wagle	0.14 s	Java	2018-04-12 13:27:39
7	Anil Ghimire	0.14 s	Java	2018-04-15 02:17:02
8	André Dyrstad	0.15 s	Java	2018-04-12 15:08:36
9	Martijn Muijsers	0.16 s	Java	2020-08-15 14:04:14
10	André Berge	0.19 s	Java	2018-04-04 20:19:20

#	User	Runtime	Language	Date
1	Lin Lee	0.03 s	JavaScript (SpiderMonkey)	2016-07-20 10:00:03

#	User	Runtime	Language	Date
1	Jacob Huebner	0.19 s	Kotlin	2022-03-09 04:35:02

#	User	Runtime	Language	Date
1	Gunvor Lemvik	0.12 s	Python 2	2018-03-17 16:41:57

#	User	Runtime	Language	Date
1	Ole Magnus Lie	0.07 s	Python 3	2018-04-14 09:52:02
2	Nora Neset	0.08 s	Python 3	2018-03-14 01:51:30
3	Hugo Bäckman	0.08 s	Python 3	2025-03-17 01:23:42
4	Paul Swingle	0.10 s	Python 3	2022-11-12 10:14:17
5	Tommy Odland	0.12 s	Python 3	2018-03-11 15:44:28
6	Julie Sandanger	0.12 s	Python 3	2025-02-27 20:37:58
7	Trym Kvitnes	0.12 s	Python 3	2025-03-13 16:19:37
8	Nicholas Russell Saerang	0.13 s	Python 3	2025-01-14 07:07:03
9	Дмитрий Махалин	0.13 s	Python 3	2025-03-09 03:55:08
10	Thomas Draper	0.14 s	Python 3	2022-11-18 22:08:46

#	User	Length	Language	Date
1	Ivan Petrov	1306	C	2019-07-01 09:37:01
2	Florian ten Napel	2040	C	2025-02-25 02:23:17

#	User	Length	Language	Date
1	CC8	3497	C#	2016-08-11 05:22:57
2	Wong Hoe Cheong	7199	C#	2016-08-11 07:36:47

#	User	Length	Language	Date
1	Brandon Zhang	1681	C++	2019-08-20 06:25:07
2	Eilif Eilifsen	1826	C++	2025-03-03 17:57:03
3	Quang Nguyễn	1935	C++	2018-11-03 07:11:07
4	Jason Yuan	2046	C++	2016-07-19 02:02:20
5	Ragur Krishnan	2050	C++	2019-06-24 02:52:36
6	Dmitry Lyubshin	2295	C++	2018-08-17 21:59:11
7	Wessel van Woerden	2367	C++	2017-07-22 19:56:14
8	Hidden user	2392	C++	2016-11-17 22:48:06
9	Damien Galant	2405	C++	2017-08-19 15:20:58
10	David Berard	2444	C++	2017-11-10 05:33:16

#	User	Length	Language	Date
1	Josenildo Silva	3160	Haskell	2018-04-22 18:04:50

#	User	Length	Language	Date
1	Hidden user	2324	Java	2019-12-30 08:26:09
2	Doug Goodman	2660	Java	2019-05-03 21:44:04
3	Morten Movik	3288	Java	2018-04-05 19:53:41
4	CC8	3756	Java	2016-08-11 05:16:14
5	Martijn Muijsers	4425	Java	2020-08-15 14:04:14
6	Jonas Mossin Wagle	4524	Java	2018-04-12 13:48:20
7	Nick Wu	4843	Java	2016-08-10 10:08:35
8	Benjamin Reidys	5075	Java	2019-07-07 22:34:16
9	Anil Ghimire	5149	Java	2018-04-15 02:17:02
10	Lee Chee Meng	6808	Java	2016-08-26 14:58:49

#	User	Length	Language	Date
1	Lin Lee	1700	JavaScript (SpiderMonkey)	2016-07-20 10:00:03

#	User	Length	Language	Date
1	Jacob Huebner	4140	Kotlin	2022-03-09 04:35:02

#	User	Length	Language	Date
1	Gunvor Lemvik	9225	Python 2	2018-03-19 11:07:17

#	User	Length	Language	Date
1	Josh Taylor	1649	Python 3	2022-11-16 22:43:16
2	Thomas Draper	1801	Python 3	2022-11-18 22:08:46
3	Hugo Bäckman	2292	Python 3	2025-03-17 01:23:42
4	Paul Swingle	2578	Python 3	2022-11-12 10:14:17
5	Nicholas Russell Saerang	2711	Python 3	2025-01-14 07:08:24
6	Дмитрий Махалин	2771	Python 3	2025-03-09 03:55:08
7	Nora Neset	2991	Python 3	2018-03-14 01:51:30
8	Julie Sandanger	3131	Python 3	2025-02-27 20:37:58
9	Ole Magnus Lie	3763	Python 3	2018-04-14 09:55:12
10	Nicolai Andersen	4206	Python 3	2025-03-11 23:47:22

Solution running time distribution