Problem C
Magic Checkerboard — Problem Statistics

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Submissions	558
Accepted submissions	73
Submission ratio	13.08%
Authors	113
Full solves [?]	55
Full solve Ratio	48.67%

#	User	Runtime	Language	Date
1	Presley Graham	0.08 s	C++	2020-02-28 21:27:32
2	Alex Labbane	0.26 s	C++	2020-02-12 03:12:55
3	Joshua Lass	0.28 s	C++	2023-02-22 02:55:22
4	Hidden user	0.29 s	C++	2018-02-18 18:18:51
5	Hidden user	0.30 s	C++	2026-02-25 03:02:07
6	Jack Lewicki	0.31 s	C++	2025-02-22 04:38:46
7	Vineel Kondapalli	0.31 s	C++	2026-02-26 01:44:23
8	Giovanna Kobus Conrado	0.35 s	C++	2019-04-30 21:33:36
9	Ethan Luo	0.35 s	C++	2022-02-21 02:05:26
10	Nguyen Xuan Minh	0.35 s	C++	2022-02-24 07:27:24

#	User	Runtime	Language	Date
1	Andrey Pridgen	0.98 s	C++ with Memory Check	2026-02-22 00:43:42

#	User	Runtime	Language	Date
1	Hidden user	0.75 s	Java	2020-02-16 02:31:14
2	Mark Sturtevant	0.76 s	Java	2022-02-27 06:10:38
3	Nathan Leake	2.18 s	Java	2017-03-24 06:40:11

#	User	Runtime	Language	Date
1	Hidden user	0.44 s	Python 3	2026-03-01 06:25:25
2	Axel Fontaine	0.60 s	Python 3	2026-02-26 03:33:29
3	Hidden user	0.76 s	Python 3	2026-02-25 05:46:19
4	Kane Dong	0.76 s	Python 3	2026-02-25 16:40:16
5	Laith Bohsali	0.81 s	Python 3	2025-02-21 00:44:49
6	Hamad Chughtai	0.99 s	Python 3	2025-12-16 05:28:28
7	Hidden user	1.16 s	Python 3	2026-02-21 03:34:43
8	Kevin Chen	1.31 s	Python 3	2026-02-26 20:50:00
9	Arjun Mahableshwarkar	1.39 s	Python 3	2026-03-01 05:08:10
10	Hidden user	1.90 s	Python 3	2025-02-19 22:50:46

#	User	Runtime	Language	Date
1	Mckinley Xie	0.49 s	Rust	2025-02-24 23:19:13

#	User	Length	Language	Date
1	Presley Graham	1517	C++	2021-03-07 21:53:40
2	Hidden user	1539	C++	2018-02-17 03:18:18
3	Hidden user	1846	C++	2025-03-01 06:07:04
4	Hidden user	2049	C++	2026-02-25 03:02:07
5	Kevin Zhang	2057	C++	2025-02-25 01:36:05
6	Hidden user	2139	C++	2018-02-18 18:18:51
7	Giovanna Kobus Conrado	2297	C++	2019-04-30 21:33:36
8	Tanner Hoke	2619	C++	2020-02-18 02:55:07
9	Yuan Yao	2785	C++	2018-02-25 07:00:17
10	Nguyen Xuan Minh	2829	C++	2022-02-24 07:27:24

#	User	Length	Language	Date
1	Andrey Pridgen	2286	C++ with Memory Check	2026-02-22 00:43:42

#	User	Length	Language	Date
1	Hidden user	3855	Java	2020-02-16 02:31:14
2	Nathan Leake	4300	Java	2017-03-24 06:40:11
3	Mark Sturtevant	4783	Java	2023-02-21 21:44:58

#	User	Length	Language	Date
1	Kevin Chen	1445	Python 3	2026-02-26 20:50:00
2	Hidden user	1588	Python 3	2026-02-25 05:46:19
3	Arjun Mahableshwarkar	1704	Python 3	2026-03-01 05:08:10
4	Laith Bohsali	1749	Python 3	2025-02-21 00:44:49
5	Hamad Chughtai	1782	Python 3	2025-12-16 05:28:28
6	Hidden user	2021	Python 3	2026-03-01 06:25:25
7	Axel Fontaine	2533	Python 3	2026-02-26 03:33:29
8	Rahul Gonsalves	2910	Python 3	2026-02-22 00:27:26
9	Kane Dong	2915	Python 3	2026-02-25 16:40:16
10	Hidden user	3119	Python 3	2025-02-19 22:50:46

#	User	Length	Language	Date
1	Mckinley Xie	2515	Rust	2025-02-24 23:19:13

Solution running time distribution