Problem I
How many squares? — Problem Statistics

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Submissions	837
Accepted submissions	203
Submission ratio	24.25%
Authors	205
Full solves [?]	145
Full solve Ratio	70.73%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.28 s	C	2019-05-31 11:44:26
2	Andreas Björklund	0.29 s	C	2018-12-02 16:52:25

#	User	Runtime	Language	Date
1	Dmitry Lyubshin	0.03 s	C++	2018-08-05 10:44:57
2	天天 张	0.03 s	C++	2024-08-13 11:22:51
3	Andrew Stelter	0.05 s	C++	2017-04-22 19:29:40
4	Richard Peng	0.07 s	C++	2017-12-11 05:15:35
5	Mike de Vries	0.07 s	C++	2019-05-24 09:49:34
6	Arthur Nascimento	0.08 s	C++	2018-11-19 11:18:05
7	Moses Mayer	0.08 s	C++	2022-05-21 21:09:47
8	Benjamin Sølvberg Buan	0.09 s	C++	2020-11-05 07:29:04
9	Adrian Vidal	0.10 s	C++	2015-09-19 09:35:51
10	Og Astorga Diaz	0.10 s	C++	2015-11-10 20:13:37

#	User	Runtime	Language	Date
1	David Brink	0.26 s	Java	2015-11-15 07:14:46
2	Michael O'Brien	0.30 s	Java	2022-05-21 21:50:10
3	Tobias Glimmerfors	0.37 s	Java	2018-11-21 19:31:50
4	Finn Lidbetter	0.39 s	Java	2016-06-21 16:35:15
5	Martin Jakobsson	0.42 s	Java	2018-05-14 23:14:44
6	Antipov Andrew	0.45 s	Java	2014-10-04 13:04:48
7	Nick Wu	0.46 s	Java	2016-04-07 23:25:58
8	Gaurav Arora	0.47 s	Java	2019-11-06 19:55:14
9	Marco Vincenzo Karaan	0.48 s	Java	2016-02-13 09:04:39
10	Benjamin Scott Pruett	0.55 s	Java	2015-02-24 04:41:46

#	User	Runtime	Language	Date
1	Jacob Huebner	0.51 s	Kotlin	2022-05-26 21:47:26

#	User	Runtime	Language	Date
1	Måns Magnusson	0.12 s	Python 2	2018-03-26 13:39:56
2	Jesper Öqvist	0.29 s	Python 2	2018-05-15 13:35:27
3	Maj Stenmark	0.79 s	Python 2	2018-05-17 21:27:54

#	User	Runtime	Language	Date
1	Joshua Andersson	0.11 s	Python 3	2024-10-04 12:10:26
2	Ryan Farrell	0.14 s	Python 3	2024-06-27 21:21:42
3	Michael Goldwasser	0.16 s	Python 3	2024-10-28 19:15:26
4	Gustavo Fadel	0.22 s	Python 3	2021-05-13 20:40:18
5	Teikn Smith	0.26 s	Python 3	2022-12-12 22:32:30
6	Thomas Draper	0.29 s	Python 3	2022-12-13 00:46:42
7	Hidden user	0.30 s	Python 3	2022-05-21 21:47:10
8	Hidden user	0.50 s	Python 3	2025-11-24 14:13:51
9	Lennart Meyling	0.53 s	Python 3	2024-08-12 09:29:57
10	Iman Khodadi	0.83 s	Python 3	2025-08-29 18:45:03

#	User	Runtime	Language	Date
1	Artur Khuziakhmetov	0.03 s	Rust	2025-11-05 13:19:43
2	Niklas Sandén	0.06 s	Rust	2022-10-01 17:10:20
3	Hidden user	0.22 s	Rust	2025-07-09 11:50:12

#	User	Length	Language	Date
1	Andreas Björklund	3825	C	2018-12-02 16:52:25
2	Ivan Petrov	3876	C	2019-05-31 11:44:26

#	User	Length	Language	Date
1	Joseph Durie	1124	C++	2022-05-26 19:21:11
2	Ziqian Zhong	1188	C++	2022-05-21 18:51:39
3	天天 张	1303	C++	2024-08-13 11:30:08
4	Johan Wind	1349	C++	2018-04-16 13:05:12
5	Victor Chen	1370	C++	2022-05-21 20:43:42
6	Simon Lindholm	1440	C++	2017-04-22 19:16:46
7	Weiying Chen	1468	C++	2022-05-21 20:41:17
8	Paul Wild	1486	C++	2018-09-02 00:58:31
9	Elias Lolck	1486	C++	2023-01-02 17:24:10
10	Alexander Skidanov	1490	C++	2025-07-13 20:36:50

#	User	Length	Language	Date
1	Åke Wettergren	2891	Java	2018-10-24 09:52:32
2	Malte Larsson	2891	Java	2018-10-24 13:11:43
3	Marco Vincenzo Karaan	3164	Java	2016-02-13 09:04:39
4	Benjamin Scott Pruett	3361	Java	2015-02-24 04:41:46
5	Hà Minh Ngọc	3975	Java	2016-06-09 03:32:44
6	David Brink	4187	Java	2015-11-15 07:14:46
7	Benjamin Reidys	4447	Java	2019-09-09 15:56:40
8	Michael O'Brien	4473	Java	2022-05-21 21:50:10
9	Gaurav Arora	4506	Java	2019-11-06 19:55:14
10	Nick Wu	5004	Java	2016-04-07 23:25:58

#	User	Length	Language	Date
1	Jacob Huebner	1787	Kotlin	2022-05-26 21:47:26

#	User	Length	Language	Date
1	Måns Magnusson	1046	Python 2	2018-03-26 13:39:56
2	Maj Stenmark	1778	Python 2	2018-05-17 21:27:54
3	Jesper Öqvist	2840	Python 2	2018-05-15 13:35:27

#	User	Length	Language	Date
1	Michael Goldwasser	427	Python 3	2024-10-28 19:21:45
2	Thomas Draper	861	Python 3	2022-12-13 00:46:42
3	Joshua Andersson	1057	Python 3	2024-10-04 12:10:26
4	Hidden user	1086	Python 3	2022-05-21 21:47:10
5	Gustavo Fadel	1387	Python 3	2021-05-13 20:40:18
6	Teikn Smith	1796	Python 3	2022-05-25 04:11:22
7	Hidden user	1967	Python 3	2025-11-24 14:13:51
8	Max Nilsson	2213	Python 3	2020-10-02 08:09:04
9	Iman Khodadi	2622	Python 3	2025-08-29 18:45:03
10	Ryan Farrell	2903	Python 3	2024-06-27 21:21:42

#	User	Length	Language	Date
1	Artur Khuziakhmetov	1682	Rust	2025-11-05 13:52:26
2	Hidden user	10123	Rust	2025-07-09 11:50:12
3	Niklas Sandén	20475	Rust	2022-10-01 17:10:20

Solution running time distribution