Problem A
Milestone Counter — Problem Statistics

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Submissions	485
Accepted submissions	245
Submission ratio	50.52%
Authors	221
Full solves [?]	196
Full solve Ratio	88.69%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2019-03-19 09:18:59

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-10-23 00:25:21
2	Nico Weber	0.10 s	Go	2016-10-19 02:21:00

#	User	Runtime	Language	Date
1	Brent Yorgey	0.03 s	Haskell	2019-01-06 22:51:10

#	User	Runtime	Language	Date
1	José Vander Meulen	0.06 s	Java	2018-03-08 21:25:36
2	Santiago Rivas	0.06 s	Java	2025-08-14 09:59:09
3	Finn Lidbetter	0.07 s	Java	2016-09-26 21:21:44
4	Micah Stairs	0.07 s	Java	2016-09-26 21:45:28
5	Paul Boddington	0.07 s	Java	2017-01-08 03:53:10
6	Steven Cheng	0.07 s	Java	2017-12-29 02:34:52
7	Bjørn Dons	0.07 s	Java	2023-06-27 20:55:13
8	Måns Magnusson	0.08 s	Java	2016-09-30 11:08:17
9	Mouhssine Assaoud	0.08 s	Java	2017-05-04 23:56:26
10	Alex Coleman	0.08 s	Java	2018-03-12 00:58:14

#	User	Runtime	Language	Date
1	Peter Kedemo	0.03 s	JavaScript (SpiderMonkey)	2017-07-18 22:10:25
2	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2019-03-13 22:20:50

#	User	Runtime	Language	Date
1	Timothy Gaede	0.65 s	Julia	2024-09-21 07:35:59

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.03 s	Python 2	2016-11-30 22:01:43
2	Dmitry Lyubshin	0.03 s	Python 2	2018-07-09 21:00:19
3	Martin Wan	0.04 s	Python 2	2018-03-15 03:21:14
4	Lars Åström	0.04 s	Python 2	2019-11-03 10:26:58
5	Björn Magnusson	0.04 s	Python 2	2019-11-03 11:47:53
6	Johan Lyts	0.04 s	Python 2	2020-12-17 14:22:24
7	Maj Stenmark	0.05 s	Python 2	2019-11-03 13:54:04
8	Thomas Feld	0.06 s	Python 2	2019-10-18 12:22:04
9	Frederik Højholt	0.11 s	Python 2	2016-11-12 15:13:02
10	Jesper Öqvist	0.14 s	Python 2	2019-03-09 13:36:54

#	User	Runtime	Language	Date
1	Yang Li	0.02 s	Python 3	2018-05-08 03:26:58
2	Mikael Häglund	0.04 s	Python 3	2024-09-15 16:04:27
3	Duoduo Zhao	0.04 s	Python 3	2025-06-29 18:03:51
4	Jiaming Kong	0.04 s	Python 3	2025-07-10 07:49:43
5	Truls Rustad Fossum	0.05 s	Python 3	2016-10-08 01:40:26
6	Anton Hansson	0.05 s	Python 3	2019-10-29 22:02:11
7	Viktor Bello Thomsen	0.05 s	Python 3	2019-11-03 12:12:04
8	Peter Stauder	0.05 s	Python 3	2023-02-19 21:45:36
9	Hugo Bäckman	0.05 s	Python 3	2025-03-18 15:01:22
10	Daniel Adams	0.05 s	Python 3	2025-05-30 12:11:14

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-05-22 16:39:46

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Swift	2023-10-20 00:04:45

#	User	Length	Language	Date
1	Ivan Petrov	1541	C	2019-03-19 09:18:59

#	User	Length	Language	Date
1	Johan Wind	610	C++	2019-02-08 12:57:24
2	Hidden user	631	C++	2020-02-25 01:05:55
3	Hidden user	683	C++	2019-05-03 04:54:56
4	Alexander Skidanov	738	C++	2024-12-27 10:45:06
5	Markus Mathiasen	739	C++	2022-01-31 19:08:16
6	alaDIN	773	C++	2024-12-27 10:45:22
7	Nathan Maier	788	C++	2018-12-01 15:29:53
8	Lego Haryanto	802	C++	2025-05-29 19:00:28
9	Way Tan	820	C++	2019-01-02 18:25:40
10	Hyunjun Lee	834	C++	2022-12-04 10:05:14

#	User	Length	Language	Date
1	Norbert Voelker	1173	Go	2021-10-23 00:25:21
2	Nico Weber	3132	Go	2016-10-19 02:21:00

#	User	Length	Language	Date
1	Brent Yorgey	1160	Haskell	2019-01-06 22:51:10

#	User	Length	Language	Date
1	Alex Coleman	1106	Java	2018-03-10 08:04:58
2	Doug Goodman	1156	Java	2018-02-22 21:16:04
3	Paul Boddington	1413	Java	2017-01-08 03:36:38
4	Erik Tegler	1418	Java	2019-11-03 11:36:10
5	Tyler VanHaren	1426	Java	2018-03-14 05:30:49
6	Crystal Sharpe	1453	Java	2020-10-11 07:47:07
7	Finn Lidbetter	1499	Java	2016-09-26 21:21:44
8	Micah Stairs	1499	Java	2016-09-26 21:45:28
9	Lukas Miedema	1590	Java	2017-10-10 21:42:21
10	Nguyen Anh Vu	1600	Java	2017-11-01 07:55:31

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	745	JavaScript (SpiderMonkey)	2019-03-13 22:20:50
2	Peter Kedemo	776	JavaScript (SpiderMonkey)	2017-07-18 22:10:25

#	User	Length	Language	Date
1	Timothy Gaede	1682	Julia	2024-09-21 07:35:59

#	User	Length	Language	Date
1	Thomas Feld	421	Python 2	2019-10-18 12:22:04
2	Dmitry Lyubshin	422	Python 2	2018-07-09 21:00:19
3	Lars Åström	511	Python 2	2019-11-03 10:26:58
4	Martin Wan	515	Python 2	2018-03-15 03:21:14
5	Frederik Højholt	549	Python 2	2016-11-12 15:16:31
6	Maj Stenmark	631	Python 2	2019-11-03 13:54:04
7	Christofer Ohlsson	688	Python 2	2016-11-30 22:01:43
8	Johan Lyts	702	Python 2	2020-12-17 14:22:24
9	Björn Magnusson	708	Python 2	2019-11-03 11:47:53
10	Jesper Öqvist	721	Python 2	2019-03-09 13:36:54

#	User	Length	Language	Date
1	Peter Stauder	306	Python 3	2023-02-19 22:01:36
2	Jason Cannon	310	Python 3	2019-12-17 22:53:18
3	Iman Khodadi	385	Python 3	2024-08-03 12:18:32
4	Hannes Bredberg	388	Python 3	2016-09-20 19:51:14
5	Nicholas Russell Saerang	422	Python 3	2023-08-14 21:44:33
6	Mikael Häglund	434	Python 3	2024-09-15 16:04:27
7	Casper Rysgaard	440	Python 3	2020-07-01 15:24:42
8	Yong Mao	450	Python 3	2024-01-28 22:42:22
9	Jorke de Vlas	507	Python 3	2019-06-26 13:17:41
10	Atli Fannar Franklín	508	Python 3	2020-04-28 18:48:05

#	User	Length	Language	Date
1	Bas Dirks	1909	Rust	2022-05-22 16:39:46

#	User	Length	Language	Date
1	Hidden user	1069	Swift	2023-10-20 00:04:45

Solution running time distribution