Problem A
The King of the North — Problem Statistics

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Submissions	3147
Accepted submissions	889
Submission ratio	28.25%
Authors	685
Full solves [?]	555
Full solve Ratio	81.02%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.05 s	C	2019-09-18 10:23:24
2	Mirel Cosulschi	0.11 s	C	2023-01-12 17:00:59
3	Alexander Bilde Pedersen	0.15 s	C	2023-03-10 17:51:03
4	Yucheng Niu	0.16 s	C	2019-04-10 04:06:06
5	Raymond Yang	0.17 s	C	2019-04-10 03:40:56
6	Jacob Gummesson Atroshi	0.17 s	C	2019-06-02 20:40:49
7	Svein Høgemo	0.23 s	C	2018-05-27 23:29:36

#	User	Runtime	Language	Date
1	Mark Lekkerkerker	0.42 s	C#	2018-05-23 17:13:24
2	Dick Appel	0.42 s	C#	2018-05-29 12:17:23
3	Fredrik Baldhagen	2.90 s	C#	2024-11-13 16:02:37

#	User	Runtime	Language	Date
1	Tiancheng Jin	0.02 s	C++	2017-10-15 23:14:29
2	Xingyu Zhou	0.02 s	C++	2018-11-14 04:44:00
3	Johan Sannemo	0.04 s	C++	2013-09-19 21:24:02
4	Paul Jungeblut	0.04 s	C++	2016-02-23 11:51:48
5	Michael Zündorf	0.04 s	C++	2019-09-09 02:32:02
6	Constantijn Dekker	0.04 s	C++	2021-03-22 12:54:21
7	Hubert Yang	0.04 s	C++	2022-02-05 08:36:07
8	Steven Halim	0.05 s	C++	2016-02-17 08:19:31
9	Dmitry Lyubshin	0.05 s	C++	2018-07-31 12:49:00
10	Josenildo Silva	0.05 s	C++	2018-08-17 18:30:18

#	User	Runtime	Language	Date
1	Darren Potts	1.16 s	Dart	2024-08-18 08:44:28

#	User	Runtime	Language	Date
1	Ilhame Qaflanova	0.63 s	Go	2025-01-23 20:44:13

#	User	Runtime	Language	Date
1	Kevin Lim Yong Shen	0.39 s	Java	2022-03-07 09:22:30
2	Samuel Klingström	0.49 s	Java	2017-08-15 22:47:07
3	Nick Wu	0.50 s	Java	2016-08-05 12:41:36
4	Suhas T. Nagar	0.52 s	Java	2022-11-15 07:24:47
5	Micah Stairs	0.53 s	Java	2016-12-29 22:51:44
6	William Fiset	0.55 s	Java	2018-07-04 20:03:52
7	Noah Goldsmid	0.59 s	Java	2016-11-14 14:43:14
8	Hidden user	0.60 s	Java	2018-12-24 19:31:50
9	Finn Lidbetter	0.62 s	Java	2017-08-26 21:14:21
10	Morten Flensborg Jensen	0.62 s	Java	2020-08-01 12:03:42

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	3.67 s	JavaScript (SpiderMonkey)	2023-11-13 17:55:32

#	User	Runtime	Language	Date
1	Phường Lên	2.73 s	Kotlin	2020-05-26 10:06:21
2	Ali Amid	3.60 s	Kotlin	2025-04-01 17:26:50

#	User	Runtime	Language	Date
1	Caleb Austin	2.90 s	Lua	2024-11-17 06:41:51

#	User	Runtime	Language	Date
1	Oskar Larsson	0.37 s	Python 2	2019-06-01 20:41:34
2	Måns Magnusson	0.71 s	Python 2	2018-06-26 20:52:39
3	Maj Stenmark	0.81 s	Python 2	2019-09-27 21:58:28
4	Andreas Björklund	1.08 s	Python 2	2019-06-02 16:58:55
5	Gunvor Lemvik	3.79 s	Python 2	2018-04-29 17:36:55

#	User	Runtime	Language	Date
1	Maarten Sebregts	0.29 s	Python 3	2018-05-27 20:50:56
2	Sonny Chan	0.32 s	Python 3	2020-07-15 23:58:45
3	Hidden user	0.52 s	Python 3	2024-04-14 20:35:03
4	Ryan Farrell	0.53 s	Python 3	2024-09-27 22:28:37
5	Christian Lebeda	0.58 s	Python 3	2021-03-21 16:29:10
6	Alexander Schiller	0.58 s	Python 3	2024-11-12 15:54:30
7	Andrew Leach	0.59 s	Python 3	2024-04-13 22:18:52
8	Hidden user	0.60 s	Python 3	2023-10-10 21:09:33
9	Nicholas Russell Saerang	0.61 s	Python 3	2023-07-07 05:45:56
10	Ole Vik Lysne	0.69 s	Python 3	2025-03-28 12:23:45

#	User	Runtime	Language	Date
1	Benjamin Juul Jensen	0.60 s	Rust	2025-06-11 15:43:14
2	Christofer Nolander	1.41 s	Rust	2019-02-10 09:48:51

#	User	Length	Language	Date
1	Ivan Petrov	2148	C	2019-09-18 10:23:24
2	Raymond Yang	2344	C	2019-04-10 03:40:56
3	Yucheng Niu	2346	C	2019-04-10 04:06:06
4	Jacob Gummesson Atroshi	2537	C	2019-06-02 20:42:22
5	Mirel Cosulschi	3449	C	2023-01-12 17:00:59
6	Svein Høgemo	4393	C	2018-05-27 23:29:36
7	Alexander Bilde Pedersen	7075	C	2023-03-08 22:24:09

#	User	Length	Language	Date
1	Fredrik Baldhagen	4741	C#	2024-11-13 16:02:37
2	Dick Appel	17031	C#	2018-05-29 12:17:23
3	Mark Lekkerkerker	17514	C#	2018-05-23 17:13:24

#	User	Length	Language	Date
1	Josenildo Silva	1407	C++	2018-08-17 18:30:18
2	Mario Luigi	1642	C++	2024-04-14 23:43:41
3	Shibbir Ahmed	1652	C++	2018-12-11 21:02:15
4	Hidden user	1687	C++	2024-04-22 02:53:11
5	Steven Halim	1747	C++	2016-02-17 08:19:31
6	How Si Wei	1760	C++	2016-03-06 16:09:53
7	Hidden user	1763	C++	2015-11-16 08:45:12
8	Ravi Chandak	1774	C++	2016-03-08 10:26:02
9	Victor Lecomte	1802	C++	2017-03-14 15:38:15
10	Donald Dong	1824	C++	2019-05-15 20:34:51

#	User	Length	Language	Date
1	Darren Potts	4653	Dart	2024-08-18 08:44:28

#	User	Length	Language	Date
1	Ilhame Qaflanova	2406	Go	2025-01-23 20:44:13

#	User	Length	Language	Date
1	Shibbir Ahmed	2786	Java	2018-12-12 04:02:50
2	Doug Goodman	2848	Java	2018-05-31 22:37:04
3	Noah Goldsmid	3066	Java	2016-11-10 20:24:44
4	Hidden user	3405	Java	2019-03-20 22:37:39
5	Maximiliano Pombo	3460	Java	2024-04-15 04:47:04
6	Finn Lidbetter	3583	Java	2017-08-26 21:14:21
7	Hidden user	3619	Java	2022-05-01 09:31:59
8	Darrin Wiley	4029	Java	2017-09-19 22:05:52
9	Csaba Szülek	4045	Java	2020-02-25 23:33:23
10	Jiru Xu	4055	Java	2017-10-16 06:24:30

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	3996	JavaScript (SpiderMonkey)	2023-11-13 17:55:32

#	User	Length	Language	Date
1	Ali Amid	3419	Kotlin	2025-04-01 17:26:50
2	Phường Lên	3840	Kotlin	2020-05-26 10:06:21

#	User	Length	Language	Date
1	Caleb Austin	3750	Lua	2024-11-17 06:41:51

#	User	Length	Language	Date
1	Oskar Larsson	1570	Python 2	2019-06-01 20:41:34
2	Måns Magnusson	1624	Python 2	2018-06-26 20:52:39
3	Andreas Björklund	1757	Python 2	2019-06-02 16:58:55
4	Maj Stenmark	2184	Python 2	2018-06-25 20:10:24
5	Gunvor Lemvik	7074	Python 2	2018-04-29 17:48:38

#	User	Length	Language	Date
1	Nicholas Russell Saerang	1647	Python 3	2023-07-07 05:45:56
2	Andrew Leach	2036	Python 3	2024-04-13 22:18:52
3	Sebastian Cloos Hylander	2162	Python 3	2024-03-14 23:18:16
4	Håkon Kjelseth	2165	Python 3	2021-01-30 20:34:30
5	Hidden user	2166	Python 3	2024-04-14 20:35:03
6	Ole Vik Lysne	2204	Python 3	2025-03-27 12:30:52
7	Emil Rapp	2205	Python 3	2025-08-02 20:33:24
8	Christoffer Sommerlund	2213	Python 3	2022-03-15 17:19:22
9	Bjarke Brodin	2315	Python 3	2021-05-15 20:49:33
10	Magnus Sverdrup	2346	Python 3	2023-03-14 13:12:05

#	User	Length	Language	Date
1	Benjamin Juul Jensen	5042	Rust	2025-06-11 15:43:14
2	Christofer Nolander	6142	Rust	2019-02-10 09:48:51

Solution running time distribution