Problem A
Administrative Difficulties — Problem Statistics

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Submissions	4154
Accepted submissions	838
Submission ratio	20.17%
Authors	719
Full solves [?]	516
Full solve Ratio	71.77%

#	User	Runtime	Language	Date
1	Seth Carter	0.08 s	C	2019-09-28 04:31:47
2	Hidden user	0.08 s	C	2025-03-27 17:12:41
3	David Wüstenhagen	0.10 s	C	2020-03-24 22:22:33
4	Ivan Petrov	0.12 s	C	2019-07-01 09:10:27
5	Isaac Pashenkov	0.25 s	C	2020-08-22 07:49:52
6	Wael Al Saeed	0.33 s	C	2014-09-29 02:56:24

#	User	Runtime	Language	Date
1	Efe Erdoğru	0.15 s	C#	2017-03-25 18:25:24
2	Jayant Notani	0.19 s	C#	2020-01-31 22:53:09
3	Johan Franzén	0.20 s	C#	2022-04-18 16:22:43
4	Trung Anh	0.20 s	C#	2022-11-29 14:09:53
5	Timm Rothe	0.59 s	C#	2022-06-17 08:18:26

#	User	Runtime	Language	Date
1	Steven Gay	0.02 s	C++	2023-11-17 10:40:05
2	Hidden user	0.02 s	C++	2024-10-23 14:33:28
3	Hidden user	0.02 s	C++	2024-11-30 02:57:29
4	Hidden user	0.02 s	C++	2025-03-02 08:01:13
5	Hidden user	0.02 s	C++	2025-04-10 10:13:04
6	Rohan	0.02 s	C++	2025-05-02 08:41:14
7	Julian Ramirez	0.02 s	C++	2025-07-21 19:08:01
8	Johan Sannemo	0.03 s	C++	2014-12-03 11:28:57
9	David Wärn	0.03 s	C++	2015-06-09 21:07:42
10	Herman Karlsson	0.03 s	C++	2015-07-20 23:00:00

#	User	Runtime	Language	Date
1	Oskar Johanson	0.14 s	Go	2019-10-12 09:40:32
2	Frank Endriss	0.28 s	Go	2021-12-27 08:57:50

#	User	Runtime	Language	Date
1	Jan Hlavacek	0.14 s	Haskell	2017-02-03 05:28:13
2	Ng Tek In	0.39 s	Haskell	2023-10-26 20:54:14
3	Patrik Berggren	0.72 s	Haskell	2014-07-25 22:26:26

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.25 s	Java	2016-10-06 11:39:10
2	Hidden user	0.26 s	Java	2016-09-16 19:49:12
3	Marius de Vogel	0.30 s	Java	2016-09-26 21:33:11
4	Ahmad Barhamje	0.30 s	Java	2024-09-01 13:16:44
5	Łukasz Antkowiak	0.32 s	Java	2015-10-04 09:41:32
6	Erik Nyström	0.34 s	Java	2015-12-10 12:51:02
7	Bjørn Dons	0.35 s	Java	2019-05-08 07:21:04
8	Rene Argento	0.35 s	Java	2021-06-08 23:41:33
9	Nick Wu	0.36 s	Java	2016-04-25 08:53:33
10	Lee Heng Sheng	0.36 s	Java	2021-06-30 11:16:03

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.28 s	JavaScript (Node.js)	2018-06-16 16:45:14

#	User	Runtime	Language	Date
1	Peter Kedemo	0.10 s	JavaScript (SpiderMonkey)	2016-07-14 21:07:51
2	Bjørn Chr. Soltvedt	0.11 s	JavaScript (SpiderMonkey)	2016-08-21 07:15:09
3	Christian Cederquist	0.14 s	JavaScript (SpiderMonkey)	2023-08-16 03:27:31

#	User	Runtime	Language	Date
1	Jacob Huebner	0.35 s	Kotlin	2022-03-08 03:29:19
2	Nicholas Johnson	0.37 s	Kotlin	2021-11-16 03:58:47
3	Adam Koprowski	0.46 s	Kotlin	2020-08-30 23:31:08
4	Kasper Ingelvide	0.51 s	Kotlin	2020-11-12 08:21:23
5	Johnny Baloney	0.62 s	Kotlin	2022-01-22 22:38:02

#	User	Runtime	Language	Date
1	Martin Jackson	0.13 s	Python 2	2016-08-19 17:20:03
2	Erik Odenman	0.14 s	Python 2	2015-05-14 13:25:18
3	Asger Hautop Drewsen	0.14 s	Python 2	2015-11-16 15:47:21
4	Mark van Helvoort	0.14 s	Python 2	2018-11-15 15:16:44
5	Michael Laszlo	0.16 s	Python 2	2016-10-10 00:08:36
6	Andreas Björklund	0.16 s	Python 2	2019-10-07 18:06:22
7	Eivind Fonn	0.17 s	Python 2	2014-10-06 20:38:48
8	Emílio Weba	0.17 s	Python 2	2016-04-03 19:47:32
9	Lars Åström	0.17 s	Python 2	2018-11-29 19:39:57

#	User	Runtime	Language	Date
1	David Bundgaard	0.10 s	Python 3	2016-02-08 21:24:21
2	Vincent Tandya	0.10 s	Python 3	2019-01-23 06:13:29
3	Glenn Bruns	0.10 s	Python 3	2019-04-08 02:30:32
4	Ram Basnet	0.10 s	Python 3	2019-10-24 22:19:47
5	Leon Tham	0.10 s	Python 3	2019-11-14 05:51:07
6	Bryan Wong Wei Heng	0.10 s	Python 3	2019-11-20 14:54:13
7	Avery	0.10 s	Python 3	2025-08-11 03:57:25
8	Brian Harrington	0.13 s	Python 3	2014-09-12 20:07:21
9	R E	0.13 s	Python 3	2017-04-19 16:14:26
10	Chase Weimer	0.14 s	Python 3	2017-11-14 14:17:25

#	User	Runtime	Language	Date
1	Thomas Feld	0.20 s	Ruby	2023-10-23 15:29:27

#	User	Runtime	Language	Date
1	Klas af Geijerstam	0.02 s	Rust	2021-11-05 16:53:39
2	Jakub Jagiello	0.02 s	Rust	2021-11-07 20:14:58
3	Daniel Anker Hermansen	0.02 s	Rust	2023-05-24 12:43:09
4	asdlfkja i4irjdfmn	0.04 s	Rust	2021-11-25 16:02:11
5	Mckinley Xie	0.06 s	Rust	2025-02-22 00:06:10

#	User	Runtime	Language	Date
1	Daniel Olausson	0.01 s	Zig	2024-11-10 19:47:29

#	User	Length	Language	Date
1	Ivan Petrov	2030	C	2019-07-01 09:10:27
2	Wael Al Saeed	2629	C	2014-09-29 02:56:24
3	Hidden user	3025	C	2025-03-27 17:12:41
4	Seth Carter	3331	C	2019-09-28 04:31:47
5	Isaac Pashenkov	4857	C	2020-08-22 07:49:52
6	David Wüstenhagen	4913	C	2020-03-24 22:22:33

#	User	Length	Language	Date
1	Johan Franzén	3686	C#	2022-04-18 16:51:40
2	Trung Anh	3997	C#	2022-11-29 14:09:53
3	Efe Erdoğru	5176	C#	2017-03-25 18:25:24
4	Jayant Notani	5456	C#	2020-01-31 22:53:09
5	Timm Rothe	7540	C#	2022-06-17 08:18:26

#	User	Length	Language	Date
1	Anna Roczek	1090	C++	2023-08-11 15:35:52
2	Hidden user	1125	C++	2024-07-24 11:51:11
3	Johan Wind	1200	C++	2019-02-10 15:11:52
4	William Gan	1210	C++	2018-12-06 05:51:33
5	Hyunjun Lee	1225	C++	2022-11-12 04:06:26
6	Oskar Haarklou Veileborg	1229	C++	2015-11-13 20:12:05
7	Mugeon Kim	1238	C++	2024-03-19 06:41:06
8	Herman Karlsson	1246	C++	2015-07-20 23:00:00
9	Brandon Zhang	1276	C++	2023-03-25 09:07:09
10	Jeremy Lim	1289	C++	2025-03-31 16:03:38

#	User	Length	Language	Date
1	Frank Endriss	3239	Go	2021-12-27 08:57:50
2	Oskar Johanson	3356	Go	2019-10-12 09:40:32

#	User	Length	Language	Date
1	Patrik Berggren	1845	Haskell	2014-07-25 22:26:26
2	Jan Hlavacek	3414	Haskell	2017-02-03 05:28:13
3	Ng Tek In	4090	Haskell	2023-10-26 20:54:14

#	User	Length	Language	Date
1	Ryan Hunt	2163	Java	2017-09-27 20:34:44
2	Adam Abdalla	2510	Java	2017-02-06 05:15:45
3	Marc Dominic San Pedro	2538	Java	2023-03-31 19:41:49
4	Laura de Waard	2558	Java	2016-09-30 13:59:43
5	Zimu Qin	2589	Java	2015-07-23 15:44:01
6	Sarthak Suri	2621	Java	2017-09-27 21:40:16
7	Doug Goodman	2783	Java	2018-12-14 18:35:55
8	Crystal Sharpe	2786	Java	2020-05-14 17:27:33
9	Luke Eales	2930	Java	2024-04-03 16:24:42
10	Dave Poplawski	2932	Java	2016-10-04 15:31:47

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	1952	JavaScript (Node.js)	2018-06-16 16:45:14

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	1729	JavaScript (SpiderMonkey)	2016-08-21 07:15:09
2	Peter Kedemo	1818	JavaScript (SpiderMonkey)	2016-07-14 21:07:51
3	Christian Cederquist	1826	JavaScript (SpiderMonkey)	2023-08-16 03:27:31
4	Al Saleh	2428	JavaScript (SpiderMonkey)	2019-02-03 14:38:22

#	User	Length	Language	Date
1	Adam Koprowski	2256	Kotlin	2020-08-30 23:31:08
2	Johnny Baloney	2852	Kotlin	2022-01-22 22:38:02
3	Kasper Ingelvide	3366	Kotlin	2020-11-03 16:32:56
4	Jacob Huebner	3681	Kotlin	2022-03-08 03:29:19
5	Nicholas Johnson	4924	Kotlin	2021-11-16 03:58:47

#	User	Length	Language	Date
1	Asger Hautop Drewsen	974	Python 2	2015-11-16 15:47:21
2	Andreas Björklund	1074	Python 2	2019-10-07 18:06:22
3	Lars Åström	1137	Python 2	2018-11-29 19:39:57
4	Erik Odenman	1590	Python 2	2015-05-14 13:25:18
5	Eivind Fonn	1672	Python 2	2014-10-06 20:38:48
6	Emílio Weba	1729	Python 2	2016-04-03 19:47:32
7	Mark van Helvoort	1982	Python 2	2018-11-15 15:16:44
8	Martin Jackson	2056	Python 2	2016-08-19 17:20:03
9	Michael Laszlo	2640	Python 2	2016-10-10 00:08:36

#	User	Length	Language	Date
1	Avery	490	Python 3	2025-08-11 03:45:22
2	Benjamin Z White	502	Python 3	2023-04-04 20:02:57
3	Thibault Raffaillac	755	Python 3	2020-03-02 08:47:38
4	Hidden user	1039	Python 3	2023-08-21 22:15:31
5	Nate Lowry	1039	Python 3	2023-10-30 10:40:44
6	Shiven Patel	1039	Python 3	2024-05-24 02:45:38
7	RDSM	1039	Python 3	2024-05-24 18:02:39
8	Alissar Almhaisen	1039	Python 3	2024-06-14 21:05:15
9	MARAKA HANSIKA MARAKA HANSIKA	1039	Python 3	2025-05-14 15:48:36
10	oscar llain	1045	Python 3	2024-03-16 03:34:45

#	User	Length	Language	Date
1	Thomas Feld	360	Ruby	2023-10-23 15:39:48

#	User	Length	Language	Date
1	asdlfkja i4irjdfmn	2897	Rust	2021-11-25 00:47:49
2	Mckinley Xie	3616	Rust	2025-02-22 00:06:10
3	Jakub Jagiello	5241	Rust	2021-11-07 20:38:02
4	Klas af Geijerstam	9013	Rust	2021-11-05 16:53:39
5	Daniel Anker Hermansen	21827	Rust	2023-05-24 12:43:09

#	User	Length	Language	Date
1	Daniel Olausson	5723	Zig	2024-11-10 19:47:29

Solution running time distribution