Problem J
A Vicious Pikeman (Hard) — Problem Statistics

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Submissions	3093
Accepted submissions	547
Submission ratio	17.69%
Authors	548
Full solves [?]	287
Full solve Ratio	52.37%

#	User	Runtime	Language	Date
1	Henning Koehler	0.01 s	C	2016-05-15 03:18:50
2	Ivan Petrov	0.02 s	C	2019-12-02 13:54:55
3	Lukas Rickie	0.02 s	C	2021-09-02 09:58:45
4	Bergur Snorrason	0.03 s	C	2019-02-01 09:35:09

#	User	Runtime	Language	Date
1	Simon Lindholm	0.01 s	C++	2012-03-21 18:12:52
2	Oskar Werkelin Ahlin	0.01 s	C++	2012-03-21 21:52:21
3	Lukas Polacek	0.01 s	C++	2012-03-22 11:52:36
4	Niklas Bäckström	0.01 s	C++	2012-03-22 20:19:45
5	Urban Pettersson	0.01 s	C++	2012-10-03 19:49:36
6	David Wärn	0.01 s	C++	2015-06-10 22:28:17
7	Syx Pek	0.01 s	C++	2016-01-25 11:04:07
8	Estelle Lee	0.01 s	C++	2016-01-25 11:39:56
9	Lim Yun Kai	0.01 s	C++	2016-06-21 11:02:55
10	Clarence Chew	0.01 s	C++	2017-05-10 10:42:28

#	User	Runtime	Language	Date
1	Fulano de Tal	0.07 s	Haskell	2022-02-04 04:06:59
2	Hidden user	0.07 s	Haskell	2022-05-04 09:48:09

#	User	Runtime	Language	Date
1	Henrik Sandström	0.08 s	Java	2015-02-18 20:39:41
2	Simon Klein	0.10 s	Java	2012-03-21 19:01:54
3	Erik Odenman	0.10 s	Java	2015-05-09 07:27:00
4	Kurtis Van Gent	0.10 s	Java	2016-06-13 18:53:08
5	Micah Stairs	0.10 s	Java	2016-08-16 14:26:01
6	Nick Wu	0.11 s	Java	2016-02-02 05:36:15
7	Doug Goodman	0.11 s	Java	2016-06-13 13:36:27
8	Kristoffer Åhgren	0.12 s	Java	2017-07-13 19:32:49
9	Crystal Sharpe	0.16 s	Java	2020-08-12 21:53:20
10	Fajrin Aziz	0.16 s	Java	2025-12-26 18:30:13

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.54 s	JavaScript (SpiderMonkey)	2023-05-22 14:12:37

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Python 2	2017-03-22 05:56:16
2	Jessica Fang	0.05 s	Python 2	2017-03-22 06:41:16
3	Yang Li	0.05 s	Python 2	2018-05-10 04:47:29
4	Victor Zheng	0.05 s	Python 2	2018-12-14 17:10:38
5	Hidden user	0.07 s	Python 2	2017-07-12 14:24:55
6	Jesper Öqvist	0.08 s	Python 2	2018-07-14 14:26:55
7	Hermon Mulat	0.08 s	Python 2	2018-10-04 16:03:08
8	Michael Hoffmann	0.09 s	Python 2	2017-03-09 06:41:39
9	Klas Björkqvist	0.10 s	Python 2	2014-07-19 15:12:22
10	Andreas Björklund	0.43 s	Python 2	2019-03-22 04:00:58

#	User	Runtime	Language	Date
1	Michael Goldwasser	0.06 s	Python 3	2024-10-04 05:25:37
2	Ole Vik Lysne	0.07 s	Python 3	2025-02-03 11:52:32
3	Caleb Dastrup	0.07 s	Python 3	2025-05-18 18:17:42
4	Arnav Sastry	0.08 s	Python 3	2023-10-15 02:11:58
5	Paco Criado	0.08 s	Python 3	2023-10-30 22:11:27
6	Tai Tze Kin	0.08 s	Python 3	2024-03-25 16:46:34
7	Nicholas Russell Saerang	0.08 s	Python 3	2025-03-29 15:38:03
8	Isaac Lee	0.09 s	Python 3	2020-08-14 03:12:31
9	Hidden user	0.11 s	Python 3	2023-04-24 00:16:20
10	Hidden user	0.11 s	Python 3	2023-11-05 19:53:45

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2025-05-28 17:09:06
2	Mckinley Xie	0.02 s	Rust	2025-04-23 20:26:32
3	Daniel Anker Hermansen	0.03 s	Rust	2023-03-24 15:05:09
4	Ole Vik Lysne	0.03 s	Rust	2025-03-07 15:40:58
5	Erik Magnusson	0.04 s	Rust	2024-02-29 11:58:33

#	User	Length	Language	Date
1	Ivan Petrov	1573	C	2019-12-02 13:54:55
2	Henning Koehler	2145	C	2016-05-15 03:18:50
3	Lukas Rickie	2383	C	2021-09-02 09:58:45
4	Bergur Snorrason	6001	C	2019-02-01 09:39:59

#	User	Length	Language	Date
1	Li Yao'an	462	C++	2017-02-06 12:30:52
2	a_b__c	736	C++	2021-03-03 07:41:34
3	Johan Sannemo	747	C++	2012-03-21 22:37:51
4	Hyunjun Lee	882	C++	2023-01-12 13:30:54
5	Hiep Trinh	892	C++	2023-09-14 06:09:45
6	Joel Au	911	C++	2020-05-25 12:18:52
7	Johan Wind	952	C++	2017-05-11 16:37:27
8	David Wärn	1007	C++	2015-06-10 22:28:17
9	Evan Michael Bailey	1010	C++	2024-01-29 22:00:11
10	Rafael Kristoforus Yanto	1054	C++	2025-03-31 13:36:25

#	User	Length	Language	Date
1	Fulano de Tal	3018	Haskell	2022-02-04 04:06:59
2	Hidden user	3525	Haskell	2022-05-04 09:48:09

#	User	Length	Language	Date
1	Erik Odenman	1664	Java	2015-05-09 07:27:00
2	Doug Goodman	1694	Java	2016-06-13 13:36:27
3	Kurtis Van Gent	1814	Java	2016-06-13 18:53:08
4	Crystal Sharpe	2549	Java	2020-08-12 21:53:20
5	Chris Xinyu Li	2692	Java	2019-09-09 14:12:49
6	Micah Stairs	2770	Java	2016-08-16 14:26:01
7	Lukas Miedema	3058	Java	2017-12-09 01:43:45
8	Fajrin Aziz	3163	Java	2025-12-26 18:30:13
9	Steven Jones	3199	Java	2019-05-05 01:04:18
10	William Li	3214	Java	2018-11-08 01:10:32

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	4168	JavaScript (SpiderMonkey)	2023-05-22 14:12:37

#	User	Length	Language	Date
1	Andreas Björklund	772	Python 2	2019-03-22 04:00:58
2	Klas Björkqvist	783	Python 2	2014-07-19 15:12:22
3	Hidden user	856	Python 2	2017-07-12 14:24:55
4	Jesper Öqvist	890	Python 2	2018-07-14 14:26:55
5	Victor Zheng	906	Python 2	2018-12-14 18:51:42
6	Yang Li	975	Python 2	2018-05-10 04:47:29
7	Michael Hoffmann	1147	Python 2	2017-03-09 06:41:39
8	Hermon Mulat	1225	Python 2	2018-10-04 16:11:49
9	Hidden user	1257	Python 2	2017-03-22 05:56:16
10	Jessica Fang	1355	Python 2	2017-03-22 06:41:16

#	User	Length	Language	Date
1	Ahmed Chamseddine	397	Python 3	2025-05-08 14:57:09
2	Michael Goldwasser	445	Python 3	2024-10-04 05:28:57
3	Tai Tze Kin	468	Python 3	2024-03-25 16:46:34
4	Caleb Dastrup	605	Python 3	2025-05-18 18:17:42
5	Zac Friggstad	626	Python 3	2020-12-18 15:30:36
6	Danny Chen	626	Python 3	2023-04-24 23:18:57
7	Nicholas Russell Saerang	708	Python 3	2024-03-25 17:12:04
8	Ole Vik Lysne	749	Python 3	2025-02-04 11:18:16
9	Muhammad Rais Fathin Mudzakir	794	Python 3	2025-06-18 16:52:17
10	Victor Zheng	878	Python 3	2018-12-14 18:36:46

#	User	Length	Language	Date
1	Mckinley Xie	2443	Rust	2025-04-23 20:26:32
2	Ole Vik Lysne	4602	Rust	2025-03-07 15:40:58
3	Erik Magnusson	6833	Rust	2024-02-29 11:58:33
4	Vincent Lagerros	10131	Rust	2025-05-28 16:49:20
5	Daniel Anker Hermansen	23346	Rust	2023-03-24 15:05:09

Solution running time distribution