Problem A
Feistel Fun — Problem Statistics

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Submissions	192
Accepted submissions	65
Submission ratio	33.85%
Authors	56
Full solves [?]	32
Full solve Ratio	57.14%

#	User	Runtime	Language	Date
1	Jason Yuen	0.00 s	C++	2019-03-16 18:49:08
2	Eric Hu	0.00 s	C++	2019-03-16 21:17:41
3	Bezaliel Silva	0.00 s	C++	2019-03-16 21:51:26
4	Matthew Joseph Schallenkamp	0.00 s	C++	2019-03-18 20:03:56
5	Dmitry Lyubshin	0.00 s	C++	2019-03-19 02:42:53
6	Atli Fannar Franklín	0.00 s	C++	2019-03-20 23:42:17
7	Richard Qi	0.00 s	C++	2020-04-03 02:31:51
8	Bjarki Ágúst Guðmundsson	0.00 s	C++	2020-05-05 20:31:50
9	Yuesong Zou	0.00 s	C++	2022-01-31 00:12:29
10	Zac Friggstad	0.00 s	C++	2022-03-04 23:27:21

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2020-04-26 19:39:31

#	User	Runtime	Language	Date
1	Liam Keliher	0.06 s	Java	2020-06-06 09:34:55
2	Crystal Sharpe	0.06 s	Java	2021-11-27 21:46:05
3	Finn Lidbetter	0.09 s	Java	2019-03-17 17:33:41
4	William Quiroga	0.09 s	Java	2019-03-22 04:30:39
5	Micah Stairs	0.18 s	Java	2019-03-17 17:16:15
6	Travis Meade	0.43 s	Java	2019-03-21 23:36:52

#	User	Runtime	Language	Date
1	Andreas Björklund	0.03 s	Python 2	2019-09-12 18:28:15
2	Hidden user	0.04 s	Python 2	2019-10-14 16:44:53

#	User	Runtime	Language	Date
1	Isaac Lee	0.02 s	Python 3	2019-06-07 23:09:35
2	Graeme Zinck	0.02 s	Python 3	2019-11-22 14:35:57
3	Nick Wu	0.04 s	Python 3	2023-07-07 22:42:21
4	George Zhang	0.04 s	Python 3	2025-10-26 19:11:50
5	Nicholas Russell Saerang	0.05 s	Python 3	2023-10-16 18:38:55

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-10-18 10:34:25

#	User	Length	Language	Date
1	Zac Friggstad	435	C++	2022-03-04 23:28:17
2	Matthew Joseph Schallenkamp	436	C++	2019-03-18 20:03:56
3	Bezaliel Silva	478	C++	2019-03-16 21:51:26
4	Hidden user	721	C++	2019-03-17 23:29:27
5	Eric Hu	894	C++	2019-03-16 21:17:41
6	Horace He	900	C++	2019-03-18 00:47:07
7	Alexander Skidanov	903	C++	2025-07-14 14:28:29
8	Jeremy Lim	910	C++	2025-08-27 16:16:34
9	Hidden user	1021	C++	2024-12-30 05:56:02
10	Atli Fannar Franklín	1201	C++	2019-03-20 23:42:17

#	User	Length	Language	Date
1	Brent Yorgey	521	Haskell	2020-04-26 19:39:31

#	User	Length	Language	Date
1	Crystal Sharpe	684	Java	2021-11-27 21:46:05
2	Liam Keliher	795	Java	2020-06-06 09:34:55
3	Finn Lidbetter	817	Java	2019-03-17 17:33:41
4	William Quiroga	1026	Java	2019-03-22 04:30:39
5	Micah Stairs	1958	Java	2019-03-17 17:16:15
6	Travis Meade	2304	Java	2019-03-21 23:36:52

#	User	Length	Language	Date
1	Andreas Björklund	286	Python 2	2019-09-12 18:28:15
2	Hidden user	468	Python 2	2019-10-14 16:44:53

#	User	Length	Language	Date
1	Nick Wu	232	Python 3	2023-07-07 22:42:21
2	Nicholas Russell Saerang	232	Python 3	2023-10-16 18:38:55
3	Graeme Zinck	288	Python 3	2019-11-22 14:35:57
4	Isaac Lee	294	Python 3	2019-06-07 23:09:35
5	George Zhang	699	Python 3	2025-10-26 19:11:50

#	User	Length	Language	Date
1	Thomas Feld	168	Ruby	2023-10-18 11:47:22

Solution running time distribution