Problem F
Primal Representation — Problem Statistics

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Submissions	3173
Accepted submissions	1012
Submission ratio	31.89%
Authors	769
Accepted authors	628
Author ratio	81.66%

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	C	2017-05-26 06:44:13
2	Hidden user	0.04 s	C	2017-04-29 18:33:11
3	John Smith	0.14 s	C	2018-06-20 08:45:46
4	Hidden user	0.14 s	C	2025-03-23 17:01:35
5	Yitian Wang	0.23 s	C	2023-01-28 08:27:55
6	Feliho S. J. Kèfil	0.31 s	C	2016-09-09 19:47:56
7	Gbaguidi E. Hugues	0.39 s	C	2016-09-23 06:55:38
8	Ayoub Chegraoui	0.43 s	C	2018-03-08 17:01:36
9	Erlandas Miezys	0.95 s	C	2018-04-26 23:25:37

#	User	Runtime	Language	Date
1	Mads Storm Hansen	0.17 s	C#	2015-07-19 19:08:22

#	User	Runtime	Language	Date
1	Agis Daniels	0.02 s	C++	2017-02-02 20:17:09
2	Liu Xinan	0.02 s	C++	2017-03-17 12:55:12
3	David Berard	0.02 s	C++	2017-03-28 00:49:11
4	Hidden user	0.02 s	C++	2017-05-26 06:16:18
5	Ludo Pulles	0.02 s	C++	2018-10-12 13:39:12
6	Michael Roberts	0.02 s	C++	2019-04-27 00:39:13
7	Hidden user	0.02 s	C++	2019-11-17 19:33:15
8	Fiona Amaia Tano	0.02 s	C++	2021-03-20 05:42:54
9	Hoang Vu	0.02 s	C++	2021-07-10 20:38:39
10	Shuxin Chen	0.02 s	C++	2021-07-31 20:37:17

#	User	Runtime	Language	Date
1	Matthew Sheldon	0.66 s	Go	2023-09-08 21:11:06
2	Yitian Wang	0.97 s	Go	2023-01-28 08:26:23

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.10 s	Haskell	2025-06-06 15:32:14
2	Brent Yorgey	0.12 s	Haskell	2021-03-30 20:06:45
3	Hidden user	0.52 s	Haskell	2023-01-07 03:08:59

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.13 s	Java	2023-05-31 20:05:29
2	Liam Keliher	0.17 s	Java	2016-05-11 05:54:40
3	Samuel Klingström	0.17 s	Java	2017-07-21 10:48:46
4	Martijn Muijsers	0.29 s	Java	2017-05-11 13:12:14
5	Erik Baalhuis	0.31 s	Java	2016-09-28 15:59:19
6	Micah Stairs	0.31 s	Java	2016-09-28 21:25:18
7	chirurg	0.32 s	Java	2025-03-05 21:22:13
8	Matthew Sheldon	0.38 s	Java	2025-01-17 01:12:33
9	Nhự Nương Họ Vũ	0.39 s	Java	2025-03-26 17:23:32
10	MOHAMMAD NAUFAL HAZIM BIN SAHARUDIN	0.40 s	Java	2025-06-11 08:28:24

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.23 s	JavaScript (Node.js)	2018-06-16 10:35:34

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.07 s	JavaScript (SpiderMonkey)	2016-10-30 12:40:14
2	Michael Laszlo	0.39 s	JavaScript (SpiderMonkey)	2016-10-22 21:14:22
3	Christian Cederquist	1.00 s	JavaScript (SpiderMonkey)	2023-08-15 16:27:25

#	User	Runtime	Language	Date
1	Timothy Gaede	0.66 s	Julia	2024-04-30 10:08:04

#	User	Runtime	Language	Date
1	Adam Koprowski	0.56 s	Kotlin	2021-04-07 14:40:27
2	Phường Lên	0.57 s	Kotlin	2020-03-04 18:37:17
3	Chelsea Hoernemann	0.67 s	Kotlin	2022-12-01 22:27:13
4	Jacob Huebner	0.68 s	Kotlin	2021-07-10 16:25:05
5	Hidden user	0.81 s	Kotlin	2020-03-05 02:49:49
6	Ali M. Nekoh	0.98 s	Kotlin	2025-05-13 11:42:36

#	User	Runtime	Language	Date
1	Bjarki Ágúst Guðmundsson	0.12 s	Python 2	2015-10-03 01:45:53
2	Hermon Mulat	0.19 s	Python 2	2018-11-18 08:36:11
3	William Fiset	0.30 s	Python 2	2016-05-11 02:00:09
4	Liam Keliher	0.31 s	Python 2	2016-05-11 03:46:30
5	Isaac Lee	0.31 s	Python 2	2016-05-11 15:30:46
6	Erik Tjøswold	0.37 s	Python 2	2018-10-11 21:26:51
7	Johan Lyts	0.42 s	Python 2	2019-05-30 22:02:20
8	Greg Hamerly	0.43 s	Python 2	2018-04-30 17:36:04
9	Andre Pratama	0.50 s	Python 2	2018-03-27 05:39:14
10	John Paul Hanson	0.53 s	Python 2	2017-06-04 04:55:49

#	User	Runtime	Language	Date
1	Bisrat Kebere	0.18 s	Python 3	2023-07-12 19:55:30
2	Noah Hessen Bjerke	0.18 s	Python 3	2025-06-30 12:46:26
3	Tylan McKinney	0.19 s	Python 3	2020-07-18 16:03:14
4	Theo Pantoja	0.19 s	Python 3	2025-04-14 11:14:00
5	Victor Hernadi	0.21 s	Python 3	2023-11-30 06:46:41
6	Raymond Christopher	0.21 s	Python 3	2023-12-19 08:09:12
7	Hidden user	0.22 s	Python 3	2025-05-31 02:55:07
8	Ainun Najib	0.24 s	Python 3	2020-10-08 18:03:14
9	Guk Yi Siong	0.24 s	Python 3	2024-12-16 07:52:00
10	apd	0.26 s	Python 3	2025-04-18 18:51:43

#	User	Runtime	Language	Date
1	Thomas Feld	0.92 s	Ruby	2025-07-16 10:55:00

#	User	Runtime	Language	Date
1	Bas Dirks	0.07 s	Rust	2022-02-20 14:11:43
2	Artur Khuziakhmetov	0.10 s	Rust	2022-07-11 12:48:32
3	Isak Jägberg	0.28 s	Rust	2022-01-09 00:18:00
4	Muhammad Rais Fathin Mudzakir	0.38 s	Rust	2021-06-02 19:52:59
5	poppyer	0.51 s	Rust	2022-05-11 07:06:53

#	User	Length	Language	Date
1	Ayoub Chegraoui	490	C	2017-11-13 14:18:53
2	John Smith	589	C	2018-06-20 08:45:46
3	Erlandas Miezys	920	C	2018-04-26 23:25:37
4	Hidden user	1118	C	2025-03-23 17:01:35
5	Gbaguidi E. Hugues	1967	C	2016-09-23 06:55:38
6	Feliho S. J. Kèfil	2378	C	2016-09-09 19:47:56
7	Hidden user	2499	C	2017-05-26 06:44:13
8	Yitian Wang	4001	C	2023-01-28 08:27:55
9	Hidden user	4371	C	2017-04-29 18:33:11

#	User	Length	Language	Date
1	Mads Storm Hansen	3887	C#	2015-07-19 19:08:22

#	User	Length	Language	Date
1	Kiên Nguyễn Tiến Trung	431	C++	2017-03-17 05:45:57
2	Vijaymurali Sridhar	438	C++	2018-05-01 09:54:15
3	Josenildo Silva	446	C++	2020-05-01 12:47:38
4	Ji Kim	484	C++	2020-08-01 05:42:05
5	Nikitha Vishwanath	484	C++	2018-04-28 16:51:49
6	Pooja Patel	484	C++	2018-05-02 23:54:44
7	Ayoub Chegraoui	486	C++	2017-11-12 20:39:50
8	Felix Kaiser	486	C++	2018-05-03 17:58:04
9	raul feier	520	C++	2023-11-30 16:51:26
10	Zac Friggstad	528	C++	2021-07-07 05:21:34

#	User	Length	Language	Date
1	Matthew Sheldon	538	Go	2023-09-08 21:11:06
2	Yitian Wang	2228	Go	2023-01-28 08:26:23

#	User	Length	Language	Date
1	Hidden user	708	Haskell	2023-01-07 03:08:59
2	Brent Yorgey	846	Haskell	2016-02-19 21:14:52
3	Steinar Simonnes	28558	Haskell	2025-06-06 15:33:14

#	User	Length	Language	Date
1	Bivash Pandey	1125	Java	2020-09-19 21:29:55
2	Mouhssine Assaoud	1192	Java	2020-01-11 00:50:40
3	Brent Yorgey	1227	Java	2016-02-21 21:11:15
4	Amos Rafael J. Cacha	1227	Java	2021-03-26 13:57:55
5	Miorel Palii	1352	Java	2017-12-26 09:35:59
6	Gaurav Arora	1378	Java	2019-10-14 23:21:58
7	Nhự Nương Họ Vũ	1421	Java	2025-03-26 17:23:32
8	chirurg	1421	Java	2025-02-06 00:34:59
9	Micah Stairs	1428	Java	2016-09-28 21:04:37
10	John Ladera	1449	Java	2019-04-08 07:30:23

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	59964	JavaScript (Node.js)	2018-06-16 10:35:34

#	User	Length	Language	Date
1	Michael Laszlo	1515	JavaScript (SpiderMonkey)	2016-10-22 21:14:22
2	Christian Cederquist	2390	JavaScript (SpiderMonkey)	2023-08-15 16:27:25
3	Bjørn Chr. Soltvedt	59857	JavaScript (SpiderMonkey)	2016-10-30 12:40:14

#	User	Length	Language	Date
1	Timothy Gaede	1776	Julia	2024-04-30 10:08:04

#	User	Length	Language	Date
1	Jacob Huebner	1271	Kotlin	2021-07-10 16:25:05
2	Phường Lên	1345	Kotlin	2020-03-04 18:37:17
3	Ali M. Nekoh	1525	Kotlin	2025-05-13 11:42:36
4	Hidden user	1964	Kotlin	2020-03-05 02:49:49
5	Chelsea Hoernemann	2260	Kotlin	2022-12-01 22:27:13
6	Adam Koprowski	3048	Kotlin	2021-04-07 14:40:27

#	User	Length	Language	Date
1	Raymond van Venetie	681	Python 2	2019-06-12 18:26:00
2	Johan Lyts	721	Python 2	2019-05-30 22:02:20
3	John Paul Hanson	758	Python 2	2017-06-04 04:55:49
4	Hermon Mulat	813	Python 2	2018-11-18 08:36:11
5	Andre Pratama	867	Python 2	2018-03-27 05:39:14
6	Greg Hamerly	881	Python 2	2018-04-30 17:36:04
7	Erik Tjøswold	927	Python 2	2018-10-11 21:26:51
8	Rob Hochberg	1001	Python 2	2017-05-28 20:10:54
9	Bjarki Ágúst Guðmundsson	1110	Python 2	2015-10-03 01:45:53
10	Christofer Ohlsson	1503	Python 2	2015-04-23 22:50:17

#	User	Length	Language	Date
1	Erik Åman	158	Python 3	2024-03-23 18:36:54
2	Victor Hernadi	163	Python 3	2024-04-27 16:56:29
3	Ahmed Chamseddine	317	Python 3	2025-06-15 01:53:57
4	Hidden user	453	Python 3	2021-05-08 16:21:51
5	Colin Wong	512	Python 3	2023-09-08 21:56:21
6	Hidden user	536	Python 3	2025-04-14 09:29:51
7	Hidden user	589	Python 3	2023-02-11 06:27:13
8	AS_200215	616	Python 3	2024-03-11 15:32:20
9	Charline Brouillard	629	Python 3	2025-03-10 15:34:20
10	Hans Oswald Ibrahim	633	Python 3	2021-03-26 16:18:45

#	User	Length	Language	Date
1	Thomas Feld	120	Ruby	2025-07-16 10:55:00

#	User	Length	Language	Date
1	poppyer	967	Rust	2022-05-11 07:06:53
2	Artur Khuziakhmetov	1063	Rust	2022-07-11 12:48:32
3	Bas Dirks	1934	Rust	2022-02-20 14:11:43
4	Isak Jägberg	2282	Rust	2022-01-09 00:26:24
5	Muhammad Rais Fathin Mudzakir	4553	Rust	2021-06-02 19:52:59

Solution running time distribution