Problem U
Square Fields (Hard) — Problem Statistics

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Submissions	800
Accepted submissions	249
Submission ratio	31.13%
Authors	196
Full solves [?]	146
Full solve Ratio	74.49%

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	C	2017-07-05 15:28:57
2	Ivan Petrov	1.08 s	C	2019-08-20 13:36:06

#	User	Runtime	Language	Date
1	Juan Miguel Vilar	0.11 s	Haskell	2020-12-31 14:06:10

#	User	Runtime	Language	Date
1	Axel Lewenhaupt	0.06 s	Java	2013-02-18 13:26:14
2	Crystal Sharpe	0.06 s	Java	2020-08-08 20:54:30
3	Erik Odenman	0.07 s	Java	2013-02-14 01:42:25
4	Linus Hansson	0.08 s	Java	2013-02-20 16:03:30
5	Darrin Wiley	0.10 s	Java	2016-01-15 07:12:27
6	Håkan Warnquist	0.19 s	Java	2013-02-22 10:53:48
7	Doug Goodman	0.19 s	Java	2018-05-08 17:20:23
8	Simon Klein	0.50 s	Java	2012-03-16 20:05:44
9	Ahmad Barhamje	1.12 s	Java	2023-11-24 03:00:06
10	Herman Appelgren	1.14 s	Java	2018-07-22 18:57:23

#	User	Runtime	Language	Date
1	Jiaxun Wei	0.06 s	JavaScript (Node.js)	2025-12-28 13:19:06

#	User	Runtime	Language	Date
1	Hidden user	0.07 s	Python 2	2017-07-05 17:08:07
2	Andreas Björklund	0.55 s	Python 2	2020-04-13 11:33:04

#	User	Runtime	Language	Date
1	Torstein Strømme	0.03 s	Python 3	2017-11-15 21:04:13
2	Nora Neset	0.03 s	Python 3	2018-04-10 15:52:37
3	Anton Nilsson	0.06 s	Python 3	2025-09-01 12:24:55
4	Josh Taylor	0.16 s	Python 3	2022-11-15 21:11:59
5	Denil Bouafia	0.18 s	Python 3	2024-10-25 16:11:31
6	Xiaoyang Xu	0.19 s	Python 3	2025-11-20 23:28:32
7	paopaomate	0.87 s	Python 3	2026-03-16 16:47:54
8	Ruizhe Jiang	3.00 s	Python 3	2025-12-06 01:39:48

#	User	Runtime	Language	Date
1	Ole Johan Walderhaug	0.00 s	Rust	2020-11-14 16:23:53

#	User	Length	Language	Date
1	Ivan Petrov	1107	C	2019-08-20 13:36:06
2	Hidden user	1620	C	2017-07-05 15:28:57

#	User	Length	Language	Date
1	Josenildo Silva	824	C++	2017-04-12 21:34:28
2	Yeung Man Tsung	901	C++	2023-01-05 08:06:03
3	Mathias Gernez	908	C++	2025-06-25 02:00:14
4	Clarence Chew	983	C++	2018-03-20 07:06:40
5	Hidden user	1063	C++	2024-03-03 10:48:42
6	Om Mahesh	1090	C++	2025-11-27 22:56:16
7	eliska macakova	1115	C++	2024-10-19 14:23:01
8	Nils Wikström	1115	C++	2025-09-23 15:28:45
9	Marc Vinyals	1129	C++	2013-02-21 00:03:06
10	Meysam Aghighi	1138	C++	2016-02-16 09:53:57

#	User	Length	Language	Date
1	Juan Miguel Vilar	9373	Haskell	2020-12-31 14:06:10

#	User	Length	Language	Date
1	Crystal Sharpe	1905	Java	2020-08-08 20:54:30
2	Doug Goodman	2215	Java	2018-05-08 17:20:23
3	Nick Wu	3089	Java	2016-08-08 06:12:47
4	Darrin Wiley	3172	Java	2016-01-15 07:12:27
5	Erik Odenman	3190	Java	2013-02-14 01:42:25
6	Ahmad Barhamje	4237	Java	2023-11-24 03:00:06
7	Herman Appelgren	4568	Java	2018-07-22 18:57:23
8	Simon Klein	5448	Java	2012-03-16 20:05:44
9	Linus Hansson	5702	Java	2013-02-20 16:03:30
10	Axel Lewenhaupt	5756	Java	2013-02-18 13:26:14

#	User	Length	Language	Date
1	Jiaxun Wei	2548	JavaScript (Node.js)	2024-12-22 06:27:35

#	User	Length	Language	Date
1	Andreas Björklund	986	Python 2	2020-04-13 11:33:04
2	Hidden user	1256	Python 2	2017-07-05 17:08:07

#	User	Length	Language	Date
1	Xiaoyang Xu	1318	Python 3	2025-11-20 23:28:32
2	Denil Bouafia	1460	Python 3	2024-12-12 08:55:40
3	Ruizhe Jiang	1899	Python 3	2025-12-06 01:39:48
4	Josh Taylor	2054	Python 3	2022-11-15 21:02:28
5	Anton Nilsson	2133	Python 3	2025-09-01 12:24:55
6	Nora Neset	2363	Python 3	2018-04-10 15:52:37
7	Torstein Strømme	2624	Python 3	2017-11-15 21:04:13
8	paopaomate	2704	Python 3	2026-03-16 16:47:54

#	User	Length	Language	Date
1	Ole Johan Walderhaug	3918	Rust	2020-11-14 16:23:53

Solution running time distribution