Problem A
Magic Checkerboard — Problem Statistics

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Submissions	2554
Accepted submissions	264
Submission ratio	10.34%
Authors	139
Accepted authors	94
Author ratio	67.63%

#	User	Runtime	Language	Date
1	kerem celik	0.07 s	C	2020-01-30 23:50:20
2	Benjamin Darnell	0.34 s	C	2020-01-29 10:07:09
3	Seif Ibrahim	0.34 s	C	2020-01-29 11:55:42

#	User	Runtime	Language	Date
1	kerem celik	0.07 s	C++	2020-01-31 02:00:20
2	Sam Pettus	0.26 s	C++	2020-01-31 08:20:20
3	Edward Zhong	0.26 s	C++	2020-02-01 04:39:00
4	Chris Riney	0.27 s	C++	2024-04-27 01:18:58
5	Daniel Lokshtanov	0.29 s	C++	2020-01-28 06:30:17
6	Ria Sinha	0.29 s	C++	2024-04-23 00:19:09
7	Ruizhe Jiang	0.29 s	C++	2024-05-01 06:43:55
8	Xilin Wang	0.31 s	C++	2020-01-31 22:44:16
9	Ethan Sifferman	0.32 s	C++	2020-02-01 01:43:30
10	Derek Meng	0.32 s	C++	2024-04-27 06:11:02

#	User	Runtime	Language	Date
1	kerem celik	0.73 s	Java	2020-01-27 03:44:21
2	Kelly Wang	0.73 s	Java	2020-01-31 05:52:05
3	Ashley Wang	0.75 s	Java	2020-01-29 08:44:48
4	Yagnya Patel	0.76 s	Java	2020-02-01 06:14:59
5	Rhianna So	1.08 s	Java	2020-01-31 05:28:21
6	Gabriel Soule	1.47 s	Java	2020-01-30 00:08:19
7	Cole Bergmann	2.32 s	Java	2020-01-31 01:21:33
8	Daemon Wei	2.41 s	Java	2024-04-29 01:00:51
9	Allen Yao	2.67 s	Java	2020-02-01 00:40:38

#	User	Runtime	Language	Date
1	Ursula Hebert-Johnson	2.22 s	JavaScript (Node.js)	2020-01-31 23:24:04

#	User	Runtime	Language	Date
1	Zeyu He	3.44 s	Python 2	2020-01-31 21:02:49

#	User	Runtime	Language	Date
1	Anikait Mundhra	0.40 s	Python 3	2024-04-20 00:02:01
2	Mai Dang	0.63 s	Python 3	2024-04-30 23:27:13
3	Tamer Tamer	0.74 s	Python 3	2024-05-01 07:44:38
4	Christy Yu	1.00 s	Python 3	2024-05-01 03:20:59
5	Jesse Cobb	1.08 s	Python 3	2024-04-26 04:47:21
6	Ashley Wang	1.13 s	Python 3	2020-01-30 05:07:59
7	Andrew Zhang	1.17 s	Python 3	2020-01-28 01:52:39
8	Jim Wang	1.19 s	Python 3	2024-04-18 10:46:57
9	Victor H Garcia	1.31 s	Python 3	2024-04-28 04:40:58
10	Tyler Canepa	1.34 s	Python 3	2024-04-30 02:43:19

#	User	Runtime	Language	Date
1	Timothy Choi	0.94 s	Python 3 with NumPy	2024-04-29 07:10:02

#	User	Runtime	Language	Date
1	Minghao Zhang	0.12 s	Rust	2024-04-26 02:13:12

#	User	Length	Language	Date
1	kerem celik	2376	C	2020-01-30 21:41:14
2	Benjamin Darnell	2508	C	2020-01-29 22:09:33
3	Seif Ibrahim	2832	C	2020-01-29 11:55:42

#	User	Length	Language	Date
1	Daniel Lokshtanov	1235	C++	2020-01-28 06:43:57
2	Ruizhe Jiang	1656	C++	2024-05-01 06:43:55
3	Yerassyl Shakhmardanov	2154	C++	2024-04-19 21:25:55
4	Timothy Yuan	2314	C++	2020-01-27 22:39:05
5	Alec Song	2354	C++	2024-05-01 07:24:14
6	Justin Hao	2542	C++	2024-05-01 08:16:06
7	Sarvesh Jayaraman	2560	C++	2024-05-01 08:56:58
8	Xingbu Qin	2814	C++	2020-02-01 01:45:16
9	Andy Jin	3004	C++	2024-04-29 21:47:56
10	Luke Li	3027	C++	2024-05-01 02:03:27

#	User	Length	Language	Date
1	Yagnya Patel	2933	Java	2020-02-01 06:37:12
2	Kelly Wang	3060	Java	2020-01-31 05:52:05
3	Ashley Wang	3563	Java	2020-01-29 08:44:48
4	kerem celik	4475	Java	2020-01-27 03:51:43
5	Gabriel Soule	5354	Java	2020-01-30 00:08:19
6	Cole Bergmann	5645	Java	2020-01-31 01:21:33
7	Allen Yao	6084	Java	2020-02-01 00:40:38
8	Daemon Wei	6122	Java	2024-04-29 01:00:51
9	Rhianna So	8232	Java	2020-01-31 19:41:26

#	User	Length	Language	Date
1	Ursula Hebert-Johnson	6397	JavaScript (Node.js)	2020-01-31 23:24:04

#	User	Length	Language	Date
1	Zeyu He	6813	Python 2	2020-01-31 21:02:49

#	User	Length	Language	Date
1	Christy Yu	1288	Python 3	2024-05-01 03:20:59
2	Mai Dang	1630	Python 3	2024-04-30 23:27:13
3	Hidden user	1656	Python 3	2024-04-30 14:50:44
4	Aaron	1859	Python 3	2024-05-01 08:43:16
5	Jesse Cobb	2190	Python 3	2024-04-26 04:47:21
6	Benjamin Darnell	2706	Python 3	2020-01-28 22:56:22
7	Seif Ibrahim	2863	Python 3	2020-01-29 00:24:46
8	Andrew Zhang	2945	Python 3	2020-01-28 01:52:39
9	Anikait Mundhra	2976	Python 3	2024-04-20 00:02:01
10	Ashley Wang	3092	Python 3	2020-01-30 05:07:59

#	User	Length	Language	Date
1	Timothy Choi	3610	Python 3 with NumPy	2024-04-29 07:10:02

#	User	Length	Language	Date
1	Minghao Zhang	4867	Rust	2024-04-25 23:41:07

Solution running time distribution