Problem F
Quadratic Residues — Problem Statistics

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Submissions	626
Accepted submissions	136
Submission ratio	21.73%
Authors	120
Full solves [?]	99
Full solve Ratio	82.50%

#	User	Runtime	Language	Date
1	YanHao Ling	0.00 s	C	2017-12-13 03:39:42
2	Bergur Snorrason	0.00 s	C	2019-04-11 23:48:49

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2023-04-03 10:34:59

#	User	Runtime	Language	Date
1	Brent Yorgey	0.02 s	Haskell	2020-05-12 16:52:50

#	User	Runtime	Language	Date
1	Måns Magnusson	0.07 s	Java	2016-10-03 01:12:26
2	Issam Baskati	0.07 s	Java	2017-11-27 14:16:57
3	Erik Baalhuis	0.08 s	Java	2016-08-13 23:18:10
4	Terrence Park	0.09 s	Java	2018-06-09 21:59:27
5	Alex Edwards	0.10 s	Java	2018-09-16 22:04:35
6	Åke Wettergren	0.11 s	Java	2016-10-15 14:04:33
7	Sophia Khalis	0.11 s	Java	2017-08-05 00:26:05
8	Sophia Khalis	0.15 s	Java	2017-08-01 19:44:15

#	User	Runtime	Language	Date
1	Håkon Verås	0.03 s	Python 2	2015-07-07 10:15:16
2	Jesper Öqvist	0.03 s	Python 2	2018-06-10 17:53:03
3	Johan Lyts	0.03 s	Python 2	2019-12-28 22:15:14
4	Haggai Liu	0.04 s	Python 2	2017-02-24 21:59:38
5	Andreas Björklund	0.04 s	Python 2	2019-06-28 18:17:11
6	Anshil Gandhi	0.05 s	Python 2	2019-10-25 21:38:40
7	Lars Åström	0.09 s	Python 2	2019-10-08 22:14:55
8	Olav Røthe Bakken	0.10 s	Python 2	2018-11-08 15:27:12

#	User	Runtime	Language	Date
1	Teodor Bucht	0.02 s	Python 3	2019-01-25 22:19:59
2	Bergur Snorrason	0.02 s	Python 3	2019-04-11 20:00:55
3	Anshil Gandhi	0.02 s	Python 3	2019-10-25 21:40:56
4	UTM CS AI	0.04 s	Python 3	2024-10-04 06:00:57
5	Jón Steinn Elíasson	0.04 s	Python 3	2024-10-06 18:40:54
6	Alexandre Charland	0.04 s	Python 3	2024-10-21 04:42:39
7	Christian Yongwhan Lim	0.04 s	Python 3	2024-12-31 00:27:56
8	Hrant Hovhannisyan	0.04 s	Python 3	2025-03-31 11:45:32
9	Linh B. Ngo	0.04 s	Python 3	2025-03-31 17:40:11
10	Noah Hessen Bjerke	0.04 s	Python 3	2025-04-17 14:41:49

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-10-11 09:34:06

#	User	Length	Language	Date
1	YanHao Ling	1068	C	2017-12-13 03:39:42
2	Bergur Snorrason	2332	C	2019-04-11 23:50:33

#	User	Length	Language	Date
1	Nicholas Winschel	332	C++	2023-05-03 09:18:19
2	David Wärn	392	C++	2015-02-12 09:09:13
3	N41h_Dr3s	417	C++	2025-03-23 20:27:59
4	Yeung Man Tsung	464	C++	2023-03-22 14:12:25
5	Antoni Guz	491	C++	2018-04-22 23:41:15
6	Simon Lindholm	567	C++	2012-09-09 13:09:35
7	Emil Lenngren	585	C++	2012-09-09 15:00:03
8	Alexander Skidanov	615	C++	2024-11-12 17:26:15
9	Michael Zündorf	685	C++	2019-01-22 14:51:27
10	Mårten Wiman	732	C++	2012-09-09 14:15:25

#	User	Length	Language	Date
1	Norbert Voelker	849	Go	2023-04-03 10:42:43

#	User	Length	Language	Date
1	Brent Yorgey	2427	Haskell	2020-05-12 16:52:50

#	User	Length	Language	Date
1	Åke Wettergren	837	Java	2016-10-15 14:04:33
2	Sophia Khalis	1308	Java	2017-08-05 00:26:05
3	Sophia Khalis	1768	Java	2017-08-01 19:44:15
4	Erik Baalhuis	1959	Java	2016-08-13 23:18:10
5	Måns Magnusson	3252	Java	2016-10-03 01:12:26
6	Issam Baskati	3654	Java	2017-11-27 14:16:57
7	Terrence Park	3767	Java	2018-06-09 21:59:27
8	Alex Edwards	4356	Java	2018-09-16 22:04:35

#	User	Length	Language	Date
1	Jesper Öqvist	242	Python 2	2018-06-10 17:53:03
2	Johan Lyts	267	Python 2	2019-12-28 22:15:14
3	Andreas Björklund	323	Python 2	2019-06-28 18:17:11
4	Anshil Gandhi	351	Python 2	2019-10-25 21:38:40
5	Haggai Liu	391	Python 2	2017-02-24 21:59:38
6	Håkon Verås	701	Python 2	2015-07-07 10:15:16
7	Olav Røthe Bakken	741	Python 2	2018-11-08 15:27:12
8	Lars Åström	848	Python 2	2019-10-08 22:14:55

#	User	Length	Language	Date
1	Jeremy Lim	102	Python 3	2023-12-12 17:03:10
2	Nicholas Russell Saerang	105	Python 3	2023-09-30 20:51:05
3	嘉雯 江	105	Python 3	2025-07-19 10:25:20
4	Russell	105	Python 3	2025-09-21 16:11:58
5	Ryan Pitasky	109	Python 3	2023-03-04 04:46:16
6	Alexandre Charland	113	Python 3	2024-10-27 03:03:02
7	Brandon Zhang	140	Python 3	2020-05-13 06:33:01
8	Bjørn Dons	147	Python 3	2023-12-16 16:27:27
9	Hrant Hovhannisyan	147	Python 3	2025-03-31 11:45:32
10	Jakob Rødal Skaar	173	Python 3	2023-12-22 14:46:43

#	User	Length	Language	Date
1	Thomas Feld	75	Ruby	2023-10-11 09:43:30

Solution running time distribution