Problem A
Decoding the Hallway — Problem Statistics

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Submissions	258
Accepted submissions	78
Submission ratio	30.23%
Authors	75
Accepted authors	60
Author ratio	80.00%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2019-09-20 14:02:37
2	Sabit Zahin	0.14 s	C	2015-10-20 19:32:31

#	User	Runtime	Language	Date
1	Daniel Keyes	0.06 s	Java	2016-08-08 17:56:05
2	Bjørn Dons	0.06 s	Java	2024-05-03 23:36:05
3	Finn Lidbetter	0.08 s	Java	2017-01-12 15:48:30
4	William Fiset	0.11 s	Java	2017-01-12 01:43:07
5	Micah Stairs	0.11 s	Java	2017-01-12 03:08:02
6	Michael Phillotry	0.19 s	Java	2021-03-23 05:29:43
7	Richard Chong	0.19 s	Java	2021-03-27 09:12:18
8	Malte Larsson	0.20 s	Java	2022-09-14 22:22:37
9	Nick Wu	0.29 s	Java	2017-01-12 00:05:38
10	Spencer Saines	0.52 s	Java	2023-02-26 16:41:46

#	User	Runtime	Language	Date
1	Josenildo Silva	0.03 s	Python 2	2018-07-29 19:29:31
2	Maj Stenmark	0.05 s	Python 2	2018-11-19 21:03:17
3	Måns Magnusson	0.10 s	Python 2	2018-11-19 20:41:23
4	Lars Åström	0.11 s	Python 2	2018-11-18 20:54:51
5	Björn Magnusson	0.11 s	Python 2	2018-11-18 21:21:44

#	User	Runtime	Language	Date
1	Carl Agrell	0.02 s	Python 3	2016-09-10 11:07:56
2	Isaac Lee	0.06 s	Python 3	2021-07-23 04:23:46
3	Oskar Haarklou Veileborg	0.07 s	Python 3	2020-10-08 11:48:00
4	Andreas Björklund	0.07 s	Python 3	2022-09-03 08:12:03
5	Alejandro Romeo	0.07 s	Python 3	2025-02-12 11:41:42

#	User	Length	Language	Date
1	Ivan Petrov	824	C	2019-09-20 14:02:37
2	Sabit Zahin	1369	C	2015-10-20 19:32:31

#	User	Length	Language	Date
1	Nicholas Foo Chuan Le	374	C++	2022-12-20 18:37:21
2	Florian Cliquet	450	C++	2024-11-21 02:39:00
3	Hidden user	525	C++	2022-12-21 06:31:21
4	João Nobre	542	C++	2017-09-09 00:52:29
5	Paco Criado	602	C++	2023-02-25 17:34:08
6	Antonio Molina Lovett	603	C++	2017-01-12 00:43:33
7	Elias Lolck	643	C++	2023-02-11 22:14:42
8	Jesús Pacheco Alonso	686	C++	2023-11-27 16:22:51
9	Gabriele Masina	718	C++	2019-11-09 10:09:56
10	Caeden Whitaker	718	C++	2022-01-30 16:16:01

#	User	Length	Language	Date
1	Richard Chong	1143	Java	2021-03-27 09:12:18
2	Daniel Keyes	1257	Java	2016-08-08 17:56:05
3	Spencer Saines	1729	Java	2023-02-26 16:41:46
4	Nick Wu	1732	Java	2017-01-12 00:05:38
5	Malte Larsson	1855	Java	2022-09-14 22:20:10
6	Finn Lidbetter	2157	Java	2017-01-12 15:48:30
7	William Fiset	2686	Java	2017-01-12 01:43:07
8	Micah Stairs	2686	Java	2017-01-12 03:08:02
9	Bjørn Dons	5255	Java	2024-05-03 23:36:05
10	Michael Phillotry	9122	Java	2021-03-23 05:29:43

#	User	Length	Language	Date
1	Josenildo Silva	455	Python 2	2018-07-29 19:29:31
2	Måns Magnusson	683	Python 2	2018-11-19 20:41:23
3	Lars Åström	782	Python 2	2018-11-18 20:54:51
4	Björn Magnusson	782	Python 2	2018-11-18 21:21:44
5	Maj Stenmark	841	Python 2	2018-11-19 21:03:17

#	User	Length	Language	Date
1	Carl Agrell	333	Python 3	2016-09-10 11:07:56
2	Oskar Haarklou Veileborg	426	Python 3	2020-10-08 11:48:00
3	Isaac Lee	798	Python 3	2021-07-23 04:23:46
4	Andreas Björklund	882	Python 3	2022-09-03 08:12:03
5	Alejandro Romeo	4008	Python 3	2025-02-12 11:41:42

Solution running time distribution