Problem U
What Does It Mean? — Problem Statistics

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Submissions	3350
Accepted submissions	987
Submission ratio	29.46%
Authors	916
Full solves [?]	712
Full solve Ratio	77.73%

#	User	Runtime	Language	Date
1	Muhammad Irham Rasyidi	0.00 s	C	2017-10-11 06:41:45
2	Alexander Bilde Pedersen	0.00 s	C	2023-03-31 00:50:01
3	Mirel Cosulschi	0.00 s	C	2025-02-19 15:01:32

#	User	Runtime	Language	Date
1	Nabeel Mirza	0.04 s	C#	2023-11-27 07:14:55
2	Daniel Acosta	0.04 s	C#	2025-08-28 06:34:27
3	Jens Erik	0.05 s	C#	2025-11-19 23:11:19
4	Simon Thillemann Nielsen	0.05 s	C#	2025-11-19 23:11:48

#	User	Runtime	Language	Date
1	James Robb	0.02 s	Go	2020-05-06 18:14:59
2	James Robb	0.09 s	Go	2020-05-12 12:32:26

#	User	Runtime	Language	Date
1	Morten Lohne	0.05 s	Haskell	2017-05-09 02:09:16

#	User	Runtime	Language	Date
1	Christer Bru	0.07 s	Java	2016-04-16 12:21:51
2	Anders Kvalvaag	0.07 s	Java	2016-04-16 14:25:16
3	Simon Xue	0.07 s	Java	2016-04-21 00:08:02
4	Jørund Leknes	0.07 s	Java	2016-06-24 14:37:19
5	Rob Hochberg	0.07 s	Java	2016-10-02 21:39:12
6	Martijn Muijsers	0.07 s	Java	2016-11-12 22:34:32
7	Åsmund Hammer	0.07 s	Java	2017-05-05 18:48:12
8	Ragnhild Aalvik	0.07 s	Java	2017-05-26 20:17:08
9	Ronald Rojas	0.07 s	Java	2017-06-03 22:59:27
10	Ronald Cruz	0.07 s	Java	2017-06-04 05:45:43

#	User	Runtime	Language	Date
1	Karra Caye Santillan	0.05 s	JavaScript (Node.js)	2025-08-06 03:08:19

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-10-30 19:40:55

#	User	Runtime	Language	Date
1	Hidden user	0.28 s	Kotlin	2021-07-02 18:31:15

#	User	Runtime	Language	Date
1	Andreas Løve Selvik	0.03 s	Python 2	2016-04-16 13:22:44
2	Jonas Kylling	0.03 s	Python 2	2016-04-16 13:22:54
3	Arne Tobias Malkenes Ødegaard	0.03 s	Python 2	2016-04-16 14:55:55
4	Erlend Åmdal	0.03 s	Python 2	2016-04-16 15:02:56
5	Marius Thoresen	0.03 s	Python 2	2016-04-16 15:14:47
6	Kasper Borys	0.03 s	Python 2	2016-10-02 20:02:35
7	Jack Baumann	0.03 s	Python 2	2016-10-02 22:18:09
8	Oscar Lindvall	0.03 s	Python 2	2016-10-11 18:49:13
9	Ethan Arnold	0.03 s	Python 2	2017-01-11 15:15:26
10	Knut Anders Stokke	0.03 s	Python 2	2017-05-23 00:05:52

#	User	Runtime	Language	Date
1	Sigurjón Freyr Viktorsson	0.02 s	Python 3	2016-05-02 13:38:43
2	Daniel Dopp	0.02 s	Python 3	2017-10-27 01:20:56
3	Eythor Andri	0.02 s	Python 3	2018-05-02 17:03:08
4	Guðný Lára Guðmundsdóttir	0.02 s	Python 3	2018-05-03 17:28:00
5	Jesse Ventura	0.02 s	Python 3	2018-06-19 21:14:33
6	Thomas Vu	0.02 s	Python 3	2018-11-21 23:32:14
7	Evan Mottais	0.02 s	Python 3	2019-01-23 17:35:53
8	Pavlo Malynin	0.02 s	Python 3	2019-03-08 08:27:09
9	Sverrir Hákon Marteinsson	0.02 s	Python 3	2019-04-12 20:27:45
10	Bjarni Jens Kristinsson	0.02 s	Python 3	2019-05-08 16:58:25

#	User	Runtime	Language	Date
1	Jonas Fuhr Høyer	0.00 s	Rust	2023-06-11 19:04:59

#	User	Runtime	Language	Date
1	Danial Haseeb	0.00 s	Swift	2023-10-25 18:46:46

#	User	Length	Language	Date
1	Mirel Cosulschi	923	C	2025-02-19 15:01:32
2	Muhammad Irham Rasyidi	1168	C	2017-10-11 06:41:45
3	Alexander Bilde Pedersen	2064	C	2023-03-31 00:50:01

#	User	Length	Language	Date
1	Simon Thillemann Nielsen	1032	C#	2025-11-19 23:11:48
2	Jens Erik	1033	C#	2025-11-19 23:11:19
3	Nabeel Mirza	1152	C#	2023-11-27 07:14:55
4	Daniel Acosta	2526	C#	2025-08-28 06:34:27

#	User	Length	Language	Date
1	Ke Bi	543	C++	2016-04-16 11:38:39
2	thiamine	561	C++	2023-10-22 17:39:14
3	Atul Anand	569	C++	2017-06-21 15:39:06
4	Seo Byeong-Chan	572	C++	2016-09-16 16:38:11
5	Alfredo Beaumont	576	C++	2020-06-03 11:03:31
6	Arnþór Logi Arnarson	582	C++	2020-05-09 17:22:26
7	Ojas Deshpande	587	C++	2017-06-04 22:03:31
8	Armen Andreasyan	591	C++	2021-10-20 11:43:48
9	Gerth Stølting Brodal	592	C++	2016-04-16 13:42:27
10	William Gan	595	C++	2018-02-05 08:30:47

#	User	Length	Language	Date
1	James Robb	912	Go	2020-05-06 18:14:59
2	James Robb	912	Go	2020-05-12 12:32:26

#	User	Length	Language	Date
1	Morten Lohne	1386	Haskell	2017-05-09 02:11:23

#	User	Length	Language	Date
1	Joey Chan	839	Java	2016-10-06 22:19:01
2	Ronald Rojas	850	Java	2017-06-03 22:59:27
3	Alexandros Antonorsi	972	Java	2018-10-18 17:07:40
4	Arup Ratan Guha	1060	Java	2026-02-03 17:19:38
5	Doug Goodman	1065	Java	2017-06-10 16:37:45
6	Mark Wen	1068	Java	2020-04-13 04:08:46
7	Sam Huynh	1095	Java	2021-02-27 06:17:04
8	Emilie Hyslop	1104	Java	2021-02-27 06:19:24
9	Peter Steele	1108	Java	2016-10-02 22:25:37
10	Eric Williamson	1118	Java	2016-10-02 20:21:48

#	User	Length	Language	Date
1	Karra Caye Santillan	552	JavaScript (Node.js)	2025-08-06 03:08:19

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	845	JavaScript (SpiderMonkey)	2023-10-30 19:40:55

#	User	Length	Language	Date
1	Hidden user	953	Kotlin	2021-07-02 18:31:15

#	User	Length	Language	Date
1	Andreas Björklund	293	Python 2	2019-05-12 17:38:51
2	Ethan Arnold	373	Python 2	2017-01-11 15:15:26
3	Lars Åström	377	Python 2	2019-10-25 09:50:30
4	Mel Shu	403	Python 2	2017-10-21 20:30:21
5	Björn Magnusson	454	Python 2	2020-10-27 18:06:46
6	Seyoon Ragavan	474	Python 2	2017-10-21 19:41:20
7	Sigurður Jens Albertsson	479	Python 2	2017-11-29 17:47:38
8	Jack Baumann	524	Python 2	2016-10-02 22:18:09
9	Brynjar Sigurðsson	524	Python 2	2018-05-02 17:18:01
10	Kasper Borys	566	Python 2	2016-10-02 20:02:35

#	User	Length	Language	Date
1	Paul Swingle	207	Python 3	2023-05-30 01:31:34
2	Jayden Pahukula	222	Python 3	2023-10-04 18:29:11
3	Thomas Draper	228	Python 3	2023-03-10 06:08:12
4	Lennart Meyling	289	Python 3	2022-12-02 01:48:23
5	Shashank Bhatt	295	Python 3	2022-12-13 04:17:34
6	Rickard Torén	325	Python 3	2016-10-26 22:23:04
7	Christian Lebeda	326	Python 3	2021-03-07 17:37:15
8	Bryan Juniano	341	Python 3	2025-05-02 16:33:22
9	vance	357	Python 3	2020-04-01 05:42:11
10	Thomas Vu	365	Python 3	2018-12-16 00:49:56

#	User	Length	Language	Date
1	Jonas Fuhr Høyer	1498	Rust	2023-06-11 19:04:59

#	User	Length	Language	Date
1	Danial Haseeb	1092	Swift	2023-10-25 18:46:46

Solution running time distribution