Problem A
Ministry of Magic — Problem Statistics

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Submissions	828
Accepted submissions	233
Submission ratio	28.14%
Authors	192
Full solves [?]	149
Full solve Ratio	77.60%

#	User	Runtime	Language	Date
1	Evan Michael Bailey	0.06 s	C++	2021-07-17 20:28:53
2	Hidden user	0.07 s	C++	2018-11-02 18:30:04
3	Herman Karlsson	0.07 s	C++	2018-11-02 19:24:06
4	Dmitry Lyubshin	0.07 s	C++	2018-11-13 11:05:43
5	Johan Wind	0.07 s	C++	2018-11-14 13:25:24
6	Johan Sannemo	0.07 s	C++	2019-01-01 10:07:50
7	Bay Wei Heng	0.07 s	C++	2019-01-18 14:39:48
8	Hidden user	0.07 s	C++	2019-02-28 09:31:45
9	Steven Halim	0.07 s	C++	2019-05-02 12:12:52
10	Atli Fannar Franklín	0.07 s	C++	2020-04-04 18:37:16

#	User	Runtime	Language	Date
1	Isaac Arvestad	0.07 s	Haskell	2018-11-06 20:44:03

#	User	Runtime	Language	Date
1	Fan Wenzhen	0.15 s	Java	2025-11-15 08:40:20
2	Bjørn Dons	0.16 s	Java	2022-05-20 22:32:36
3	Åke Wettergren	0.39 s	Java	2018-11-07 11:01:52
4	Doug Goodman	0.40 s	Java	2019-07-08 17:21:15
5	Benjamin Reidys	0.44 s	Java	2019-07-19 07:23:00
6	Tobias Glimmerfors	0.48 s	Java	2018-11-02 18:33:07
7	Simon Klein	0.50 s	Java	2018-11-02 18:51:31
8	Erik Tegler	0.55 s	Java	2020-01-27 15:03:59
9	Crystal Sharpe	0.55 s	Java	2020-06-01 05:00:18
10	Elaica Dela Cruz	0.62 s	Java	2024-10-11 14:04:27

#	User	Runtime	Language	Date
1	Andreas Björklund	0.12 s	Python 2	2019-04-04 16:58:53
2	Björn Magnusson	0.13 s	Python 2	2018-11-02 18:38:18
3	Hidden user	0.14 s	Python 2	2018-11-02 19:24:58
4	Måns Magnusson	0.16 s	Python 2	2018-11-02 18:35:28
5	Jonatan Nilsson	0.17 s	Python 2	2018-11-02 19:13:51
6	Maj Stenmark	0.17 s	Python 2	2018-11-02 19:40:57
7	Lars Åström	0.27 s	Python 2	2018-11-02 18:53:47
8	Alfred Olsson	0.50 s	Python 2	2019-08-19 19:08:35
9	Oskar Larsson	1.71 s	Python 2	2019-04-11 08:20:50
10	Thore Husfeldt	1.93 s	Python 2	2018-11-04 08:01:01

#	User	Runtime	Language	Date
1	Vu Minh Hieu	0.13 s	Python 3	2024-10-21 17:44:55
2	Nicholas Russell Saerang	0.13 s	Python 3	2026-01-21 10:10:09
3	Isaac Lee	0.14 s	Python 3	2020-08-19 05:52:36
4	ss ss	0.14 s	Python 3	2024-11-09 11:10:47
5	Petr	0.14 s	Python 3	2025-08-09 03:44:41
6	Jacob Parry	0.18 s	Python 3	2020-12-01 09:46:03
7	Vincent Tandya	0.31 s	Python 3	2021-04-09 06:55:21
8	Russell Ng	0.73 s	Python 3	2026-01-25 14:10:34
9	Tai Tze Kin	0.85 s	Python 3	2026-01-19 15:41:33
10	Oskar Haarklou Veileborg	0.86 s	Python 3	2020-05-08 21:26:47

#	User	Runtime	Language	Date
1	Hidden user	0.13 s	Rust	2019-10-03 06:48:54
2	Pahlevi Fikri Auliya	1.54 s	Rust	2020-11-07 08:31:32

#	User	Length	Language	Date
1	Markus Mathiasen	747	C++	2021-10-19 10:48:39
2	Tuukka Korhonen	841	C++	2018-11-02 18:41:33
3	Hyunjun Lee	896	C++	2022-11-12 00:13:21
4	Antti Laaksonen	907	C++	2018-11-02 18:41:41
5	Johan Wind	925	C++	2018-11-14 13:25:24
6	Hidden user	984	C++	2020-01-27 15:24:42
7	Brandon Zhang	1025	C++	2020-12-31 06:54:55
8	Lav Radosavljevic	1096	C++	2018-11-02 19:43:38
9	Aykhan Damirli	1098	C++	2026-01-24 16:59:25
10	Ernest Ng Zi Xuan	1101	C++	2026-03-06 13:35:54

#	User	Length	Language	Date
1	Isaac Arvestad	2664	Haskell	2018-11-06 20:39:55

#	User	Length	Language	Date
1	Doug Goodman	1371	Java	2019-07-08 17:21:15
2	Crystal Sharpe	1762	Java	2020-06-01 05:00:18
3	Danniel Alcantara	1920	Java	2024-03-01 09:39:06
4	Hidden user	2175	Java	2024-09-20 08:54:34
5	Erik Tegler	2179	Java	2020-01-27 15:03:59
6	Fan Wenzhen	2342	Java	2025-10-27 13:54:11
7	Elaica Dela Cruz	2348	Java	2024-10-11 14:05:04
8	Marc Dominic San Pedro	3084	Java	2024-09-30 08:08:23
9	Benjamin Reidys	3208	Java	2019-07-19 07:25:59
10	Tylan McKinney	3384	Java	2020-12-03 20:08:43

#	User	Length	Language	Date
1	Måns Magnusson	503	Python 2	2018-11-02 18:35:28
2	Alfred Olsson	699	Python 2	2019-08-19 19:08:35
3	Andreas Björklund	721	Python 2	2019-04-04 16:58:53
4	Lars Åström	818	Python 2	2018-11-02 18:53:47
5	Thore Husfeldt	892	Python 2	2018-11-04 08:01:01
6	Björn Magnusson	1024	Python 2	2018-11-02 18:38:18
7	Jonatan Nilsson	1303	Python 2	2018-11-02 19:13:51
8	Hidden user	1426	Python 2	2018-11-02 19:24:58
9	Oskar Larsson	1428	Python 2	2019-04-11 08:20:50
10	Maj Stenmark	1803	Python 2	2018-11-02 19:40:57

#	User	Length	Language	Date
1	ss ss	489	Python 3	2024-11-09 11:10:47
2	Nicholas Russell Saerang	528	Python 3	2026-01-21 10:10:09
3	Vu Minh Hieu	543	Python 3	2024-10-21 17:44:55
4	Tai Tze Kin	557	Python 3	2026-01-19 15:41:33
5	Oskar Haarklou Veileborg	670	Python 3	2020-05-08 21:26:47
6	Alfred Olsson	699	Python 3	2019-08-19 19:09:02
7	Vincent Tandya	767	Python 3	2021-04-09 06:55:21
8	Matthew Cheney	1106	Python 3	2020-12-04 04:34:20
9	Petr	1188	Python 3	2025-08-09 04:08:35
10	Russell Ng	1190	Python 3	2026-01-25 14:10:34

#	User	Length	Language	Date
1	Hidden user	2857	Rust	2019-10-02 07:08:14
2	Pahlevi Fikri Auliya	3350	Rust	2020-11-07 08:31:32

Solution running time distribution