Problem A
Inspecting Illumination — Problem Statistics

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Submissions	952
Accepted submissions	223
Submission ratio	23.42%
Authors	237
Full solves [?]	192
Full solve Ratio	81.01%

#	User	Runtime	Language	Date
1	Travis Meade	0.00 s	C	2020-02-01 20:40:02
2	Ivan Petrov	0.01 s	C	2020-01-16 09:40:29

#	User	Runtime	Language	Date
1	Bjørn Dons	0.07 s	Java	2023-07-03 10:23:22
2	Liam Keliher	0.08 s	Java	2020-06-14 04:46:30
3	Sharon Barak	0.13 s	Java	2021-01-21 02:44:15
4	Brent Yorgey	0.17 s	Java	2020-01-03 22:59:42
5	Andrew Polizzotto	0.20 s	Java	2020-05-29 09:05:00
6	Crystal Sharpe	0.24 s	Java	2020-06-16 01:26:06
7	Joshua Delgado	0.26 s	Java	2021-01-30 21:06:48
8	Sathvik Kuthuru	0.26 s	Java	2021-01-30 21:19:06
9	Tyler Marks	0.26 s	Java	2021-01-30 23:43:18
10	Josh Wozniak	0.28 s	Java	2020-02-01 20:20:50

#	User	Runtime	Language	Date
1	Adam Rankin	0.27 s	Kotlin	2023-10-11 22:46:20

#	User	Runtime	Language	Date
1	Nguyen Thanh Trung	0.07 s	Python 2	2019-12-03 17:54:29
2	Andreas Björklund	0.21 s	Python 2	2020-01-25 14:13:07

#	User	Runtime	Language	Date
1	Vincent Tandya	0.02 s	Python 3	2019-12-13 17:19:42
2	Cáo Quảng	0.03 s	Python 3	2019-12-06 11:32:11
3	Isaac Lee	0.06 s	Python 3	2020-06-16 02:52:41
4	Hidden user	0.06 s	Python 3	2021-10-02 00:11:43
5	Tú Nguyễn Minh	0.06 s	Python 3	2022-08-28 15:11:03
6	Hidden user	0.06 s	Python 3	2023-08-05 16:25:11
7	Andrea Puddu	0.06 s	Python 3	2023-11-23 12:20:24
8	Zac Friggstad	0.07 s	Python 3	2020-02-05 05:47:08
9	Presley Graham	0.07 s	Python 3	2021-02-08 00:06:57
10	Garfield Tong	0.08 s	Python 3	2020-02-08 20:28:29

#	User	Length	Language	Date
1	Travis Meade	938	C	2021-01-30 20:11:44
2	Ivan Petrov	2136	C	2020-01-16 09:40:29

#	User	Length	Language	Date
1	Dmitry Lyubshin	601	C++	2023-04-14 22:44:42
2	Anson Ho	612	C++	2020-01-01 03:08:28
3	Matthew Craven	625	C++	2020-02-01 19:54:31
4	Atli Fannar Franklín	638	C++	2020-01-31 14:52:34
5	Chau Vu	644	C++	2021-01-25 05:06:37
6	Nguyen Nguyen	666	C++	2019-12-10 20:14:07
7	Howard Cheng	668	C++	2021-01-28 05:23:20
8	Chris Sun	668	C++	2021-02-04 03:10:05
9	QB TV	670	C++	2021-01-14 05:35:01
10	Vu Thanh Trung	672	C++	2020-10-18 04:06:17

#	User	Length	Language	Date
1	Joshua Fair	883	Java	2020-02-01 19:28:50
2	Tyler Marks	894	Java	2021-01-30 23:43:18
3	Benjamin Reidys	1008	Java	2020-02-01 19:33:29
4	Jacqueline van der Meulen	1094	Java	2020-02-02 00:24:55
5	Andrew Polizzotto	1291	Java	2020-05-29 09:05:00
6	kuimou yu	1642	Java	2021-02-07 21:03:32
7	Crystal Sharpe	1741	Java	2020-06-16 01:26:06
8	Josh Wozniak	1819	Java	2020-02-01 20:20:50
9	Paula Arnold	2001	Java	2020-03-20 15:12:24
10	Doug Goodman	2285	Java	2022-06-12 19:12:59

#	User	Length	Language	Date
1	Adam Rankin	742	Kotlin	2023-10-11 22:46:20

#	User	Length	Language	Date
1	Nguyen Thanh Trung	517	Python 2	2019-12-03 17:54:29
2	Andreas Björklund	735	Python 2	2020-01-25 14:13:07

#	User	Length	Language	Date
1	Zac Friggstad	258	Python 3	2020-02-05 05:47:08
2	Hidden user	330	Python 3	2023-08-05 16:25:11
3	Presley Graham	364	Python 3	2021-02-08 00:06:57
4	Qianlang Chen	400	Python 3	2021-02-07 23:55:49
5	Garfield Tong	429	Python 3	2020-02-08 20:28:29
6	Arihant Jain	450	Python 3	2021-01-30 19:28:15
7	Hidden user	497	Python 3	2021-10-02 00:11:43
8	Richard Li	500	Python 3	2021-01-30 21:21:44
9	Vincent Tandya	544	Python 3	2019-12-13 17:19:42
10	Shashank Bhatt	548	Python 3	2021-01-31 01:24:54

Solution running time distribution