Problem J
Hall O' Wee Mirrors — Problem Statistics

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Submissions	272
Accepted submissions	105
Submission ratio	38.60%
Authors	109
Full solves [?]	83
Full solve Ratio	76.15%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2019-04-15 10:20:55
2	Ivan Petrov	0.01 s	C	2020-03-16 09:08:40

#	User	Runtime	Language	Date
1	Jakub Jarząbek	0.04 s	C#	2020-10-18 16:30:54
2	Jessica Whyrick	0.06 s	C#	2021-10-23 22:24:34
3	Andrzej Krajniak	0.07 s	C#	2020-10-15 09:14:56
4	Marek	0.08 s	C#	2020-10-14 11:52:54

#	User	Runtime	Language	Date
1	Ludo Pulles	0.00 s	C++	2015-11-21 16:03:49
2	Duy Hồ	0.00 s	C++	2015-12-02 08:28:10
3	Alexander Kravberg	0.00 s	C++	2023-07-27 00:16:09
4	Brandon Zhang	0.00 s	C++	2024-08-30 08:42:38
5	Winston Cat	0.00 s	C++	2025-09-14 20:44:45
6	Mason Everett	0.01 s	C++	2015-10-22 01:46:05
7	Greg Walkup	0.01 s	C++	2015-10-23 02:55:00
8	Andrew Baas	0.01 s	C++	2015-10-26 22:56:12
9	Captain Ahmadi	0.01 s	C++	2015-11-15 13:43:03
10	Toby Cathcart Burn	0.01 s	C++	2015-11-15 16:31:23

#	User	Runtime	Language	Date
1	Matthew Li	0.07 s	Haskell	2025-03-17 08:29:51
2	Brent Yorgey	0.11 s	Haskell	2020-03-27 20:38:56

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.08 s	Java	2024-01-13 20:22:06
2	Simon Xue	0.13 s	Java	2016-04-06 15:46:37
3	Sam Reinehr	0.13 s	Java	2018-02-07 22:07:01
4	Martijn Muijsers	0.15 s	Java	2016-11-12 03:10:37
5	Nick Wu	0.17 s	Java	2016-06-13 01:26:54
6	Finn Lidbetter	0.17 s	Java	2016-09-12 13:14:36
7	Mehdi Ichou	0.18 s	Java	2017-09-30 03:54:37
8	Micah Stairs	0.21 s	Java	2016-09-12 05:54:58
9	Doug Goodman	0.32 s	Java	2017-12-16 18:38:46
10	Michael Sullivan	0.39 s	Java	2016-02-16 06:56:25

#	User	Runtime	Language	Date
1	Johannes Jensen	0.04 s	JavaScript (SpiderMonkey)	2016-03-06 16:10:42

#	User	Runtime	Language	Date
1	Neal Zane	0.10 s	Python 2	2016-08-01 01:07:37
2	Michael Laszlo	0.13 s	Python 2	2016-11-04 07:04:39
3	Lars Åström	0.13 s	Python 2	2018-10-09 15:15:41
4	Thomas Feld	0.16 s	Python 2	2020-07-22 16:12:25
5	Svend Christian Svendsen	0.19 s	Python 2	2017-11-28 10:09:56

#	User	Runtime	Language	Date
1	Bjørn Dons	0.11 s	Python 3	2024-12-28 17:27:37
2	Peter Ton	0.13 s	Python 3	2024-10-20 21:08:17
3	Melody Horn	0.15 s	Python 3	2017-10-12 01:39:34
4	Andrzej Krajniak	0.19 s	Python 3	2020-10-14 17:32:35
5	Duoduo Zhao	0.19 s	Python 3	2025-07-09 04:41:45
6	vance	0.21 s	Python 3	2020-04-20 06:30:05
7	Ian Orzel	0.22 s	Python 3	2020-10-07 19:26:43
8	Ron Joshi	0.27 s	Python 3	2019-04-09 15:19:25
9	Garway Mei	0.42 s	Python 3	2020-02-16 04:12:37
10	Mark Liu	0.42 s	Python 3	2020-02-16 04:13:17

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Swift	2024-05-10 10:32:30

#	User	Length	Language	Date
1	Ivan Petrov	1787	C	2020-03-16 09:08:40
2	Bergur Snorrason	2455	C	2019-04-15 10:20:33

#	User	Length	Language	Date
1	Jessica Whyrick	2505	C#	2021-10-23 22:24:34
2	Marek	4481	C#	2020-10-14 11:52:54
3	Jakub Jarząbek	7367	C#	2020-10-18 16:30:54
4	Andrzej Krajniak	17944	C#	2020-10-15 09:14:56

#	User	Length	Language	Date
1	Captain Ahmadi	665	C++	2015-11-15 13:43:03
2	Yeung Man Tsung	686	C++	2022-06-21 17:41:59
3	Emil Wärnberg	758	C++	2017-10-03 19:03:23
4	Brandon Zhang	778	C++	2024-08-30 08:42:38
5	Catalin-Andrei Ilie	858	C++	2015-11-18 17:36:06
6	David Venhoek	902	C++	2016-03-03 09:28:03
7	Rico Tiongson	980	C++	2015-12-05 12:02:31
8	Nils Gustafsson	1066	C++	2017-10-03 18:37:56
9	Bryce Robinson	1161	C++	2022-10-22 05:21:19
10	Duy Hồ	1169	C++	2015-12-02 08:28:10

#	User	Length	Language	Date
1	Matthew Li	1436	Haskell	2025-03-17 08:29:51
2	Brent Yorgey	2257	Haskell	2020-03-27 20:38:56

#	User	Length	Language	Date
1	Doug Goodman	776	Java	2017-12-16 18:38:46
2	Finn Lidbetter	1294	Java	2016-09-12 13:14:36
3	Hidden user	1323	Java	2022-07-23 21:08:37
4	Micah Stairs	1677	Java	2016-09-12 05:54:58
5	Sam Reinehr	1705	Java	2018-02-07 22:07:01
6	Nick Wu	2434	Java	2016-06-13 01:26:54
7	Joey Bream	2521	Java	2019-04-09 15:16:59
8	Simon Xue	2562	Java	2016-04-06 15:46:37
9	Martijn Muijsers	2984	Java	2016-11-12 03:10:37
10	Mehdi Ichou	3739	Java	2017-09-30 03:54:37

#	User	Length	Language	Date
1	Johannes Jensen	1017	JavaScript (SpiderMonkey)	2016-03-06 16:10:42

#	User	Length	Language	Date
1	Thomas Feld	339	Python 2	2020-07-22 16:12:25
2	Neal Zane	513	Python 2	2016-08-01 01:07:37
3	Michael Laszlo	1020	Python 2	2016-11-04 07:04:39
4	Svend Christian Svendsen	1615	Python 2	2017-11-28 10:09:56
5	Lars Åström	2830	Python 2	2018-10-09 15:15:41

#	User	Length	Language	Date
1	Melody Horn	649	Python 3	2017-10-12 01:39:34
2	Bjørn Dons	692	Python 3	2024-12-28 17:27:37
3	Raymond Yang	727	Python 3	2019-04-08 17:14:16
4	vance	816	Python 3	2020-04-20 06:30:05
5	Garway Mei	938	Python 3	2020-02-16 04:12:37
6	Mark Liu	938	Python 3	2020-02-16 04:13:17
7	Peter Ton	944	Python 3	2024-10-20 21:08:17
8	Matias Frank Jensen	1087	Python 3	2016-10-11 21:36:49
9	Ian Orzel	1153	Python 3	2020-10-07 19:26:43
10	Chinagorom Mbaraonye	1256	Python 3	2019-10-31 19:38:06

#	User	Length	Language	Date
1	Hidden user	1094	Swift	2024-05-10 10:32:30

Solution running time distribution