Problem D
Primal Representation — Problem Statistics

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Submissions	3276
Accepted submissions	1050
Submission ratio	32.05%
Authors	802
Full solves [?]	656
Full solve Ratio	81.80%

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	C	2017-05-26 04:44:13
2	Hidden user	0.04 s	C	2017-04-29 16:33:11
3	John Smith	0.14 s	C	2018-06-20 06:45:46
4	Mirel Cosulschi	0.14 s	C	2025-03-23 16:01:35
5	Yitian Wang	0.23 s	C	2023-01-28 07:27:55
6	Feliho S. J. Kèfil	0.31 s	C	2016-09-09 17:47:56
7	Gbaguidi E. Hugues	0.39 s	C	2016-09-23 04:55:38
8	Ayoub Chegraoui	0.43 s	C	2018-03-08 16:01:36
9	Erlandas Miezys	0.95 s	C	2018-04-26 21:25:37

#	User	Runtime	Language	Date
1	Mads Storm Hansen	0.17 s	C#	2015-07-19 17:08:22

#	User	Runtime	Language	Date
1	Agis Daniels	0.02 s	C++	2017-02-02 19:17:09
2	Liu Xinan	0.02 s	C++	2017-03-17 11:55:12
3	David Berard	0.02 s	C++	2017-03-27 22:49:11
4	Hidden user	0.02 s	C++	2017-05-26 04:16:18
5	Ludo Pulles	0.02 s	C++	2018-10-12 11:39:12
6	Michael Roberts	0.02 s	C++	2019-04-26 22:39:13
7	Hidden user	0.02 s	C++	2019-11-17 18:33:15
8	Fiona Amaia Tano	0.02 s	C++	2021-03-20 04:42:54
9	Hoang Vu	0.02 s	C++	2021-07-10 18:38:39
10	Shuxin Chen	0.02 s	C++	2021-07-31 18:37:17

#	User	Runtime	Language	Date
1	Matthew Sheldon	0.66 s	Go	2023-09-08 19:11:06
2	Yitian Wang	0.97 s	Go	2023-01-28 07:26:23

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.10 s	Haskell	2025-06-06 13:32:14
2	Brent Yorgey	0.12 s	Haskell	2021-03-30 18:06:45
3	Hidden user	0.52 s	Haskell	2023-01-07 02:08:59

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.13 s	Java	2023-05-31 18:05:29
2	Liam Keliher	0.17 s	Java	2016-05-11 03:54:40
3	Samuel Klingström	0.17 s	Java	2017-07-21 08:48:46
4	Martijn Muijsers	0.29 s	Java	2017-05-11 11:12:14
5	Erik Baalhuis	0.31 s	Java	2016-09-28 13:59:19
6	Micah Stairs	0.31 s	Java	2016-09-28 19:25:18
7	chirurg	0.32 s	Java	2025-03-05 20:22:13
8	Matthew Sheldon	0.38 s	Java	2025-01-17 00:12:33
9	Nhự Nương Họ Vũ	0.39 s	Java	2025-03-26 16:23:32
10	Mohammad Naufal Hazim Bin Saharudin	0.40 s	Java	2025-06-11 06:28:24

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.23 s	JavaScript (Node.js)	2018-06-16 08:35:34

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.07 s	JavaScript (SpiderMonkey)	2016-10-30 11:40:14
2	Michael Laszlo	0.39 s	JavaScript (SpiderMonkey)	2016-10-22 19:14:22
3	Christian Pilegaard Cederquist	1.00 s	JavaScript (SpiderMonkey)	2023-08-15 14:27:25

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

#	User	Runtime	Language	Date
1	Adam Koprowski	0.56 s	Kotlin	2021-04-07 12:40:27
2	Phường Lên	0.57 s	Kotlin	2020-03-04 17:37:17
3	Chelsea Hoernemann	0.67 s	Kotlin	2022-12-01 21:27:13
4	Jacob Huebner	0.68 s	Kotlin	2021-07-10 14:25:05
5	Hidden user	0.81 s	Kotlin	2020-03-05 01:49:49
6	Ali M. Nekoh	0.98 s	Kotlin	2025-05-13 09:42:36

#	User	Runtime	Language	Date
1	Bjarki Ágúst Guðmundsson	0.12 s	Python 2	2015-10-02 23:45:53
2	Hermon Mulat	0.19 s	Python 2	2018-11-18 07:36:11
3	William Fiset	0.30 s	Python 2	2016-05-11 00:00:09
4	Liam Keliher	0.31 s	Python 2	2016-05-11 01:46:30
5	Isaac Lee	0.31 s	Python 2	2016-05-11 13:30:46
6	Erik Tjøswold	0.37 s	Python 2	2018-10-11 19:26:51
7	Johan Lyts	0.42 s	Python 2	2019-05-30 20:02:20
8	Greg Hamerly	0.43 s	Python 2	2018-04-30 15:36:04
9	Andre Pratama	0.50 s	Python 2	2018-03-27 03:39:14
10	John Paul Hanson	0.53 s	Python 2	2017-06-04 02:55:49

#	User	Runtime	Language	Date
1	Bisrat Kebere	0.18 s	Python 3	2023-07-12 17:55:30
2	Noah Hessen Bjerke	0.18 s	Python 3	2025-06-30 10:46:26
3	Tylan McKinney	0.19 s	Python 3	2020-07-18 14:03:14
4	Theo Pantoja	0.19 s	Python 3	2025-04-14 09:14:00
5	Gustav Hermansson	0.20 s	Python 3	2025-05-22 10:23:29
6	Victor Hernadi	0.21 s	Python 3	2023-11-30 05:46:41
7	Raymond Christopher	0.21 s	Python 3	2023-12-19 07:09:12
8	Borui Xu	0.22 s	Python 3	2025-05-31 00:55:07
9	Kattis Speedrun2026	0.22 s	Python 3	2026-01-03 18:13:56
10	Rasmus Hulthe	0.22 s	Python 3	2026-01-04 13:20:12

#	User	Runtime	Language	Date
1	Thomas Feld	0.92 s	Ruby	2025-07-16 08:55:00
2	Matzuka	0.92 s	Ruby	2025-11-19 08:58:04

#	User	Runtime	Language	Date
1	Bas Dirks	0.07 s	Rust	2022-02-20 13:11:43
2	Artur Khuziakhmetov	0.10 s	Rust	2022-07-11 10:48:32
3	Isak Jägberg	0.28 s	Rust	2022-01-08 23:18:00
4	Muhammad Rais Fathin Mudzakir	0.38 s	Rust	2021-06-02 17:52:59
5	poppyer	0.51 s	Rust	2022-05-11 05:06:53

#	User	Length	Language	Date
1	Ayoub Chegraoui	490	C	2017-11-13 13:18:53
2	John Smith	589	C	2018-06-20 06:45:46
3	Erlandas Miezys	920	C	2018-04-26 21:25:37
4	Mirel Cosulschi	1118	C	2025-03-23 16:01:35
5	Gbaguidi E. Hugues	1967	C	2016-09-23 04:55:38
6	Feliho S. J. Kèfil	2378	C	2016-09-09 17:47:56
7	Hidden user	2499	C	2017-05-26 04:44:13
8	Yitian Wang	4001	C	2023-01-28 07:27:55
9	Hidden user	4371	C	2017-04-29 16:33:11

#	User	Length	Language	Date
1	Mads Storm Hansen	3887	C#	2015-07-19 17:08:22

#	User	Length	Language	Date
1	Kiên Nguyễn Tiến Trung	431	C++	2017-03-17 04:45:57
2	Vijaymurali Sridhar	438	C++	2018-05-01 07:54:15
3	Josenildo Silva	446	C++	2020-05-01 10:47:38
4	Nikitha Vishwanath	484	C++	2018-04-28 14:51:49
5	Pooja Patel	484	C++	2018-05-02 21:54:44
6	Ji Kim	484	C++	2020-08-01 03:42:05
7	Ayoub Chegraoui	486	C++	2017-11-12 19:39:50
8	Felix Kaiser	486	C++	2018-05-03 15:58:04
9	raul feier	520	C++	2023-11-30 15:51:26
10	Zac Friggstad	528	C++	2021-07-07 03:21:34

#	User	Length	Language	Date
1	Matthew Sheldon	538	Go	2023-09-08 19:11:06
2	Yitian Wang	2228	Go	2023-01-28 07:26:23

#	User	Length	Language	Date
1	Hidden user	708	Haskell	2023-01-07 02:08:59
2	Brent Yorgey	846	Haskell	2016-02-19 20:14:52
3	Steinar Simonnes	28558	Haskell	2025-06-06 13:33:14

#	User	Length	Language	Date
1	Bivash Pandey	1125	Java	2020-09-19 19:29:55
2	Mouhssine Assaoud	1192	Java	2020-01-10 23:50:40
3	Brent Yorgey	1227	Java	2016-02-21 20:11:15
4	Amos Rafael J. Cacha	1227	Java	2021-03-26 12:57:55
5	Miorel Palii	1352	Java	2017-12-26 08:35:59
6	Gaurav Arora	1378	Java	2019-10-14 21:21:58
7	chirurg	1421	Java	2025-02-05 23:34:59
8	Nhự Nương Họ Vũ	1421	Java	2025-03-26 16:23:32
9	Micah Stairs	1428	Java	2016-09-28 19:04:37
10	John Ladera	1449	Java	2019-04-08 05:30:23

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	59964	JavaScript (Node.js)	2018-06-16 08:35:34

#	User	Length	Language	Date
1	Michael Laszlo	1515	JavaScript (SpiderMonkey)	2016-10-22 19:14:22
2	Christian Pilegaard Cederquist	2390	JavaScript (SpiderMonkey)	2023-08-15 14:27:25
3	Bjørn Chr. Soltvedt	59857	JavaScript (SpiderMonkey)	2016-10-30 11:40:14

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

#	User	Length	Language	Date
1	Jacob Huebner	1271	Kotlin	2021-07-10 14:25:05
2	Phường Lên	1345	Kotlin	2020-03-04 17:37:17
3	Ali M. Nekoh	1525	Kotlin	2025-05-13 09:42:36
4	Hidden user	1964	Kotlin	2020-03-05 01:49:49
5	Chelsea Hoernemann	2260	Kotlin	2022-12-01 21:27:13
6	Adam Koprowski	3048	Kotlin	2021-04-07 12:40:27

#	User	Length	Language	Date
1	Raymond van Venetie	681	Python 2	2019-06-12 16:26:00
2	Johan Lyts	721	Python 2	2019-05-30 20:02:20
3	John Paul Hanson	758	Python 2	2017-06-04 02:55:49
4	Hermon Mulat	813	Python 2	2018-11-18 07:36:11
5	Andre Pratama	867	Python 2	2018-03-27 03:39:14
6	Greg Hamerly	881	Python 2	2018-04-30 15:36:04
7	Erik Tjøswold	927	Python 2	2018-10-11 19:26:51
8	Rob Hochberg	1001	Python 2	2017-05-28 18:10:54
9	Bjarki Ágúst Guðmundsson	1110	Python 2	2015-10-02 23:45:53
10	Christofer Ohlsson	1503	Python 2	2015-04-23 20:50:17

#	User	Length	Language	Date
1	Erik Åman	158	Python 3	2024-03-23 17:36:54
2	Victor Hernadi	163	Python 3	2023-12-03 02:35:48
3	David Aldenbro	263	Python 3	2025-10-21 16:09:35
4	Ahmed Chamseddine	317	Python 3	2025-06-14 23:53:57
5	Hidden user	453	Python 3	2021-05-08 14:21:51
6	Colin Wong	512	Python 3	2023-09-08 19:56:21
7	Hussin Suleiman	524	Python 3	2026-03-07 15:34:14
8	Hidden user	536	Python 3	2025-04-14 07:29:51
9	Hidden user	589	Python 3	2023-02-11 05:27:13
10	AS_200215	616	Python 3	2024-03-11 14:32:20

#	User	Length	Language	Date
1	Thomas Feld	119	Ruby	2025-08-26 11:21:13
2	Matzuka	694	Ruby	2025-11-19 09:03:41

#	User	Length	Language	Date
1	poppyer	967	Rust	2022-05-11 05:06:53
2	Artur Khuziakhmetov	1063	Rust	2022-07-11 10:48:32
3	Bas Dirks	1934	Rust	2022-02-20 13:11:43
4	Isak Jägberg	2282	Rust	2022-01-08 23:26:24
5	Muhammad Rais Fathin Mudzakir	4553	Rust	2021-06-02 17:52:59

Solution running time distribution