Problem D
Please, Go First — Problem Statistics

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Submissions	403
Accepted submissions	223
Submission ratio	55.33%
Authors	205
Full solves [?]	177
Full solve Ratio	86.34%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2019-07-29 08:46:47
2	Sanjiv Dinakar	0.01 s	C	2022-06-30 19:43:38

#	User	Runtime	Language	Date
1	Niklas Larsson	0.11 s	C#	2021-05-26 21:27:06

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-11-27 20:53:06

#	User	Runtime	Language	Date
1	Tim Put	0.01 s	Haskell	2021-06-19 19:58:12
2	Steinar Simonnes	0.01 s	Haskell	2025-03-13 12:10:39
3	Aaron Allen	0.03 s	Haskell	2021-06-26 03:07:42
4	Ryan Yates	0.05 s	Haskell	2021-07-01 01:50:26
5	Md Akif Chowdhury	0.06 s	Haskell	2023-06-21 07:04:31
6	TJ Takei	0.06 s	Haskell	2025-06-09 08:35:17
7	Anurudh Reddy	0.16 s	Haskell	2021-06-22 14:31:48
8	Brent Yorgey	0.21 s	Haskell	2021-06-11 00:50:30
9	Ng Tek In	0.33 s	Haskell	2022-09-13 18:08:13

#	User	Runtime	Language	Date
1	Micah Stairs	0.07 s	Java	2016-07-28 05:42:30
2	Peter Beattie	0.07 s	Java	2017-12-19 17:26:57
3	Liam Keliher	0.08 s	Java	2016-07-23 21:58:37
4	Paul Boddington	0.08 s	Java	2017-01-19 00:18:11
5	Mehdi Maick	0.09 s	Java	2016-09-23 17:23:37
6	Bjørn Dons	0.09 s	Java	2023-07-03 11:15:36
7	Finn Lidbetter	0.10 s	Java	2016-07-26 02:43:14
8	Crystal Sharpe	0.12 s	Java	2020-08-06 21:55:45
9	Doug Goodman	0.14 s	Java	2018-03-23 16:26:31
10	Andrew Polizzotto	0.14 s	Java	2020-02-29 07:03:06

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.07 s	JavaScript (SpiderMonkey)	2023-07-24 09:17:54

#	User	Runtime	Language	Date
1	Adam Rankin	0.33 s	Kotlin	2023-09-25 05:56:47

#	User	Runtime	Language	Date
1	Jesper Öqvist	0.04 s	Python 2	2018-11-09 13:19:51
2	Andreas Björklund	0.05 s	Python 2	2019-08-14 18:09:16

#	User	Runtime	Language	Date
1	Hidden user	0.06 s	Python 3	2023-09-11 19:55:13
2	Zach Hacking	0.06 s	Python 3	2023-10-26 03:11:28
3	Christian Komusiewicz	0.07 s	Python 3	2019-02-14 23:28:59
4	Daryll Ko	0.07 s	Python 3	2022-01-24 10:10:46
5	Leslie Yip	0.07 s	Python 3	2022-07-25 15:08:22
6	Michelle Sweering	0.07 s	Python 3	2022-11-04 17:05:00
7	Peter Stauder	0.07 s	Python 3	2023-04-07 10:40:37
8	Benjamin Z White	0.07 s	Python 3	2023-05-21 23:29:22
9	Nicholas Russell Saerang	0.07 s	Python 3	2023-08-14 21:54:23
10	Jtest	0.07 s	Python 3	2023-10-24 07:14:04

#	User	Runtime	Language	Date
1	Thomas Feld	0.11 s	Ruby	2023-08-10 13:20:32
2	Donald Dong	0.15 s	Ruby	2019-03-08 17:54:11
3	Carlos Agarie	0.32 s	Ruby	2023-02-20 04:10:43

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2019-09-18 06:19:47
2	Arnav Sastry	0.01 s	Rust	2021-06-25 06:38:00
3	Muhammad Rais Fathin Mudzakir	0.02 s	Rust	2021-05-30 11:32:01
4	Bas Dirks	0.04 s	Rust	2022-02-07 14:19:27

#	User	Length	Language	Date
1	Ivan Petrov	660	C	2019-07-29 08:46:47
2	Sanjiv Dinakar	3918	C	2022-06-30 19:43:38

#	User	Length	Language	Date
1	Niklas Larsson	2657	C#	2021-05-26 21:27:06

#	User	Length	Language	Date
1	Dmitry Lyubshin	466	C++	2023-04-12 03:02:44
2	人外沙耶	491	C++	2021-06-21 07:39:41
3	Hidden user	494	C++	2017-10-26 00:28:12
4	Chris Sun	528	C++	2020-10-29 02:10:14
5	Phuwadon Phuchumni_	568	C++	2025-06-29 13:43:53
6	Koen	576	C++	2020-04-01 20:06:58
7	Ignacio Castellano Vega	581	C++	2023-03-29 12:09:55
8	Marc Phua	584	C++	2020-12-10 09:47:03
9	Johan Wind	592	C++	2018-11-01 03:25:51
10	Matthew Fahrbach	595	C++	2018-11-06 19:29:48

#	User	Length	Language	Date
1	Norbert Voelker	996	Go	2021-11-27 20:54:49

#	User	Length	Language	Date
1	Ryan Yates	608	Haskell	2021-07-01 01:50:26
2	Aaron Allen	683	Haskell	2021-06-26 03:30:08
3	Tim Put	707	Haskell	2021-06-19 19:58:12
4	Md Akif Chowdhury	737	Haskell	2023-06-21 07:04:31
5	Anurudh Reddy	818	Haskell	2021-06-21 10:55:37
6	Ng Tek In	1060	Haskell	2022-09-13 18:08:13
7	Steinar Simonnes	2124	Haskell	2025-03-13 12:10:39
8	TJ Takei	2430	Haskell	2025-06-09 08:35:17
9	Brent Yorgey	6780	Haskell	2021-06-11 00:50:30

#	User	Length	Language	Date
1	Doug Goodman	761	Java	2018-03-23 16:26:31
2	Hidden user	971	Java	2022-09-24 16:18:10
3	Haobo Jiang	1032	Java	2016-11-16 16:57:36
4	Andrew Polizzotto	1128	Java	2020-02-29 07:03:06
5	Mack Wong Yoong Yee	1199	Java	2024-02-21 09:03:17
6	Matt Peter	1209	Java	2019-02-22 21:33:20
7	Erik Baalhuis	1225	Java	2016-04-04 20:05:22
8	Joshua Workman	1245	Java	2020-09-17 01:47:33
9	Ta Quang Minh	1254	Java	2016-10-04 00:25:28
10	Liam Keliher	1301	Java	2016-07-23 21:59:24

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	474	JavaScript (SpiderMonkey)	2023-07-24 09:17:54

#	User	Length	Language	Date
1	Adam Rankin	658	Kotlin	2023-09-25 05:56:47

#	User	Length	Language	Date
1	Andreas Björklund	387	Python 2	2019-08-14 18:09:16
2	Jesper Öqvist	534	Python 2	2018-11-09 13:19:51

#	User	Length	Language	Date
1	Benjamin Z White	186	Python 3	2023-05-21 23:59:00
2	Yong Mao	208	Python 3	2023-12-08 02:34:41
3	Peter Stauder	219	Python 3	2023-04-07 10:47:28
4	Hidden user	261	Python 3	2023-09-11 19:55:13
5	Bryan Juniano	285	Python 3	2025-04-22 19:35:39
6	Jtest	289	Python 3	2023-10-24 07:14:04
7	Jason Oliphant	289	Python 3	2023-10-24 07:14:15
8	Nicholas Russell Saerang	323	Python 3	2023-08-14 21:54:23
9	Rafael Kristoforus Yanto	333	Python 3	2025-05-09 11:07:09
10	Sarek Høverstad Skotåm	335	Python 3	2022-02-13 21:19:45

#	User	Length	Language	Date
1	Thomas Feld	90	Ruby	2023-08-10 13:29:17
2	Donald Dong	327	Ruby	2019-03-08 17:54:11
3	Carlos Agarie	1244	Ruby	2023-02-20 04:10:43

#	User	Length	Language	Date
1	Bas Dirks	1115	Rust	2022-02-07 14:19:27
2	Hidden user	1666	Rust	2019-09-17 07:03:13
3	Arnav Sastry	2686	Rust	2021-06-25 06:38:00
4	Muhammad Rais Fathin Mudzakir	4830	Rust	2021-05-30 11:32:01

Solution running time distribution