Problem B
Board Coloring — Problem Statistics

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Submissions	295
Accepted submissions	102
Submission ratio	34.58%
Authors	117
Full solves [?]	84
Full solve Ratio	71.79%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2019-01-22 13:34:31
2	Sanjiv Dinakar	0.01 s	C	2023-05-10 17:01:58

#	User	Runtime	Language	Date
1	Emma Collins	0.08 s	Java	2016-10-14 23:53:29
2	Andrey Akhmetov	0.08 s	Java	2016-10-14 23:57:38
3	Hidden user	0.08 s	Java	2017-05-21 14:21:00
4	Adam Smith	0.08 s	Java	2017-07-10 19:54:54
5	Bjørn Dons	0.08 s	Java	2018-12-02 10:18:13
6	Crystal Sharpe	0.08 s	Java	2020-05-02 16:37:18
7	Chris Wu	0.09 s	Java	2016-10-15 00:42:16
8	Darrin Wiley	0.09 s	Java	2017-07-10 18:49:46
9	Pontus Eriksson	0.09 s	Java	2018-02-02 13:00:17
10	Timothy Buzzelli	0.10 s	Java	2016-10-14 23:13:57

#	User	Runtime	Language	Date
1	Xander Wong	0.08 s	Python 2	2017-07-10 20:49:59
2	Andreas Björklund	0.14 s	Python 2	2019-01-04 16:46:45
3	Alex Zhao	0.24 s	Python 2	2017-10-13 20:35:44

#	User	Runtime	Language	Date
1	Nico Klaassen	0.12 s	Python 3	2022-11-29 18:56:52
2	Doug Goodman	0.13 s	Python 3	2023-08-14 16:50:35
3	Nicholas Russell Saerang	0.14 s	Python 3	2025-01-24 10:26:15
4	Hrant Hovhannisyan	0.14 s	Python 3	2025-12-12 07:25:33
5	Martijn van der Horst	0.51 s	Python 3	2022-11-19 11:12:14
6	Michael Droogleever Fortuyn	0.71 s	Python 3	2022-11-24 04:53:46
7	Aditya Durvasula	1.10 s	Python 3	2018-03-12 18:37:53
8	Bowen Yu	1.31 s	Python 3	2016-10-14 16:27:39

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2025-05-21 13:53:53

#	User	Length	Language	Date
1	Sanjiv Dinakar	3144	C	2023-05-10 17:01:58
2	Bergur Snorrason	5701	C	2019-01-22 13:33:49

#	User	Length	Language	Date
1	Simone Moretti	925	C++	2021-10-26 18:37:26
2	Johan Wind	1070	C++	2017-05-28 22:34:08
3	Ioana-Maria Tamas	1072	C++	2016-10-14 23:25:26
4	Cameron Custer	1120	C++	2022-09-06 15:54:24
5	Tomás Cariño	1121	C++	2016-12-27 04:29:47
6	Antoni Guz	1142	C++	2018-03-18 20:52:05
7	Hidden user	1157	C++	2016-10-14 23:06:00
8	Brandon Zhang	1179	C++	2023-09-14 00:19:23
9	Rene Josiah M. Quinto	1266	C++	2017-09-23 10:13:27
10	Ojas Deshpande	1272	C++	2016-10-14 23:51:42

#	User	Length	Language	Date
1	Elizabeth Zou	1393	Java	2017-07-14 03:42:19
2	Timothy Buzzelli	1479	Java	2016-10-14 23:13:57
3	Tyler VanHaren	1570	Java	2016-10-15 01:27:10
4	Peter Steele	1723	Java	2016-10-15 00:47:07
5	Emma Collins	1833	Java	2016-10-14 23:53:29
6	Melanie Kirsche	1981	Java	2016-10-14 23:46:02
7	Finn Lidbetter	2064	Java	2017-10-13 04:52:57
8	Ronald Rojas	2068	Java	2017-10-11 00:25:39
9	Darrin Wiley	2205	Java	2017-07-10 18:49:46
10	Crystal Sharpe	2216	Java	2020-04-02 07:35:30

#	User	Length	Language	Date
1	Andreas Björklund	718	Python 2	2019-01-04 16:46:45
2	Alex Zhao	1079	Python 2	2017-10-13 20:35:44
3	Xander Wong	1465	Python 2	2017-07-10 20:49:59

#	User	Length	Language	Date
1	Nicholas Russell Saerang	541	Python 3	2025-01-24 10:26:15
2	Hrant Hovhannisyan	640	Python 3	2025-12-12 07:25:33
3	Bowen Yu	820	Python 3	2016-10-14 01:34:24
4	Martijn van der Horst	959	Python 3	2022-11-19 11:12:14
5	Nico Klaassen	1222	Python 3	2022-11-29 18:56:52
6	Aditya Durvasula	1311	Python 3	2018-03-12 18:37:53
7	Doug Goodman	1414	Python 3	2023-08-14 16:50:35
8	Michael Droogleever Fortuyn	2754	Python 3	2022-11-24 04:53:46

#	User	Length	Language	Date
1	Hidden user	7600	Rust	2025-05-21 13:53:53

Solution running time distribution