Problem I
How many squares? — Problem Statistics

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Submissions	837
Accepted submissions	201
Submission ratio	24.01%
Authors	205
Full solves [?]	144
Full solve Ratio	70.24%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.28 s	C	2019-05-31 13:44:26
2	Andreas Björklund	0.29 s	C	2018-12-02 17:52:25

#	User	Runtime	Language	Date
1	Dmitry Lyubshin	0.03 s	C++	2018-08-05 12:44:57
2	天天 张	0.03 s	C++	2024-08-13 13:22:51
3	Andrew Stelter	0.05 s	C++	2017-04-22 21:29:40
4	Richard Peng	0.07 s	C++	2017-12-11 06:15:35
5	Mike de Vries	0.07 s	C++	2019-05-24 11:49:34
6	Arthur Nascimento	0.08 s	C++	2018-11-19 12:18:05
7	Moses Mayer	0.08 s	C++	2022-05-21 23:09:47
8	Benjamin Sølvberg Buan	0.09 s	C++	2020-11-05 08:29:04
9	Adrian Vidal	0.10 s	C++	2015-09-19 11:35:51
10	Og Astorga Diaz	0.10 s	C++	2015-11-10 21:13:37

#	User	Runtime	Language	Date
1	David Brink	0.26 s	Java	2015-11-15 08:14:46
2	Michael O'Brien	0.30 s	Java	2022-05-21 23:50:10
3	Tobias Glimmerfors	0.37 s	Java	2018-11-21 20:31:50
4	Finn Lidbetter	0.39 s	Java	2016-06-21 18:35:15
5	Martin Jakobsson	0.42 s	Java	2018-05-15 01:14:44
6	Antipov Andrew	0.45 s	Java	2014-10-04 15:04:48
7	Nick Wu	0.46 s	Java	2016-04-08 01:25:58
8	Gaurav Arora	0.47 s	Java	2019-11-06 20:55:14
9	Marco Vincenzo Karaan	0.48 s	Java	2016-02-13 10:04:39
10	Benjamin Scott Pruett	0.55 s	Java	2015-02-24 05:41:46

#	User	Runtime	Language	Date
1	Jacob Huebner	0.51 s	Kotlin	2022-05-26 23:47:26

#	User	Runtime	Language	Date
1	Måns Magnusson	0.12 s	Python 2	2018-03-26 15:39:56
2	Jesper Öqvist	0.29 s	Python 2	2018-05-15 15:35:27
3	Maj Stenmark	0.79 s	Python 2	2018-05-17 23:27:54

#	User	Runtime	Language	Date
1	Joshua Andersson	0.11 s	Python 3	2024-10-04 14:10:26
2	Ryan Farrell	0.14 s	Python 3	2024-06-27 23:21:42
3	Michael Goldwasser	0.16 s	Python 3	2024-10-28 20:15:26
4	Gustavo Fadel	0.22 s	Python 3	2021-05-13 22:40:18
5	Teikn Smith	0.26 s	Python 3	2022-12-12 23:32:30
6	Thomas Draper	0.29 s	Python 3	2022-12-13 01:46:42
7	Hidden user	0.30 s	Python 3	2022-05-21 23:47:10
8	Duoduo Zhao	0.52 s	Python 3	2025-07-16 17:20:09
9	Lennart Meyling	0.53 s	Python 3	2024-08-12 11:29:57
10	Iman Khodadi	0.83 s	Python 3	2025-08-29 20:45:03

#	User	Runtime	Language	Date
1	Niklas Sandén	0.06 s	Rust	2022-10-01 19:10:20
2	Hidden user	0.22 s	Rust	2025-07-09 13:50:12

#	User	Length	Language	Date
1	Andreas Björklund	3825	C	2018-12-02 17:52:25
2	Ivan Petrov	3876	C	2019-05-31 13:44:26

#	User	Length	Language	Date
1	Joseph Durie	1124	C++	2022-05-26 21:21:11
2	Ziqian Zhong	1188	C++	2022-05-21 20:51:39
3	天天 张	1303	C++	2024-08-13 13:30:08
4	Johan Wind	1349	C++	2018-04-16 15:05:12
5	Victor Chen	1370	C++	2022-05-21 22:43:42
6	Simon Lindholm	1440	C++	2017-04-22 21:16:46
7	Weiying Chen	1468	C++	2022-05-21 22:41:17
8	Paul Wild	1486	C++	2018-09-02 02:58:31
9	Elias Lolck	1486	C++	2023-01-02 18:24:10
10	Alexander Skidanov	1490	C++	2025-07-13 22:36:50

#	User	Length	Language	Date
1	Åke Wettergren	2891	Java	2018-10-24 11:52:32
2	Malte Larsson	2891	Java	2018-10-24 15:11:43
3	Marco Vincenzo Karaan	3164	Java	2016-02-13 10:04:39
4	Benjamin Scott Pruett	3361	Java	2015-02-24 05:41:46
5	Hà Minh Ngọc	3975	Java	2016-06-09 05:32:44
6	David Brink	4187	Java	2015-11-15 08:14:46
7	Benjamin Reidys	4447	Java	2019-09-09 17:56:40
8	Michael O'Brien	4473	Java	2022-05-21 23:50:10
9	Gaurav Arora	4506	Java	2019-11-06 20:55:14
10	Nick Wu	5004	Java	2016-04-08 01:25:58

#	User	Length	Language	Date
1	Jacob Huebner	1787	Kotlin	2022-05-26 23:47:26

#	User	Length	Language	Date
1	Måns Magnusson	1046	Python 2	2018-03-26 15:39:56
2	Maj Stenmark	1778	Python 2	2018-05-17 23:27:54
3	Jesper Öqvist	2840	Python 2	2018-05-15 15:35:27

#	User	Length	Language	Date
1	Michael Goldwasser	427	Python 3	2024-10-28 20:21:45
2	Thomas Draper	861	Python 3	2022-12-13 01:46:42
3	Joshua Andersson	1057	Python 3	2024-10-04 14:10:26
4	Hidden user	1086	Python 3	2022-05-21 23:47:10
5	Gustavo Fadel	1387	Python 3	2021-05-13 22:40:18
6	Teikn Smith	1796	Python 3	2022-05-25 06:11:22
7	Max Nilsson	2213	Python 3	2020-10-02 10:09:04
8	Iman Khodadi	2622	Python 3	2025-08-29 20:45:03
9	Ryan Farrell	2903	Python 3	2024-06-27 23:21:42
10	Duoduo Zhao	3829	Python 3	2025-07-16 17:20:09

#	User	Length	Language	Date
1	Hidden user	10123	Rust	2025-07-09 13:50:12
2	Niklas Sandén	20475	Rust	2022-10-01 19:10:20

Solution running time distribution