Problem A
Ball Bearings — Problem Statistics

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Submissions	1191
Accepted submissions	421
Submission ratio	35.35%
Authors	419
Accepted authors	333
Author ratio	79.47%

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	APL	2023-03-23 13:13:32
2	Andrea Piseri	0.01 s	APL	2023-12-01 00:36:20

#	User	Runtime	Language	Date
1	Henrik Sandström	0.00 s	C	2009-12-03 12:43:28
2	Ivan Petrov	0.00 s	C	2019-09-10 16:34:12
3	André Palmborg	0.00 s	C	2021-04-01 02:26:07
4	Axel Svensson	0.00 s	C	2022-07-18 22:09:37

#	User	Runtime	Language	Date
1	Simon Ståhlberg	0.02 s	C#	2014-05-12 13:41:53
2	Andreas Löfwenmark	0.02 s	C#	2014-05-12 16:54:38
3	Bryan Albert	0.02 s	C#	2014-12-30 20:18:38
4	Klas af Geijerstam	0.02 s	C#	2017-06-05 14:39:55
5	Jeremiah A. Stringer	0.02 s	C#	2017-09-24 04:20:45
6	Vijaya Sekhar Gullapalli	0.02 s	C#	2017-12-11 21:18:03
7	Armin Krauss	0.02 s	C#	2018-11-08 11:19:47
8	Rickard Bemm	0.02 s	C#	2021-03-26 17:44:20
9	Kasper Kabell	0.02 s	C#	2023-01-29 02:29:12
10	Ruben Rystedt	0.05 s	C#	2024-11-17 17:21:44

#	User	Runtime	Language	Date
1	Thomas Cole	0.00 s	Go	2024-03-20 06:03:18
2	Norbert Voelker	0.02 s	Go	2023-03-23 17:24:56

#	User	Runtime	Language	Date
1	Niklas Rosén	0.00 s	Haskell	2014-05-12 15:27:25
2	Blake Hyde	0.00 s	Haskell	2016-06-10 14:41:52
3	Lars Corbijn	0.00 s	Haskell	2016-09-03 18:47:33
4	Brent Yorgey	0.00 s	Haskell	2018-06-11 21:18:32
5	Intrets	0.00 s	Haskell	2019-12-29 22:18:18
6	Bjarki Baldursson Harksen	0.01 s	Haskell	2021-11-09 12:43:42
7	William Henrich	0.01 s	Haskell	2021-11-12 23:23:45

#	User	Runtime	Language	Date
1	Linus Tufvesson	0.05 s	Java	2009-10-02 14:37:21
2	Fredrik Atmer	0.05 s	Java	2009-10-26 10:19:58
3	Hans Gylling	0.05 s	Java	2010-05-29 14:24:57
4	Andreas Serra	0.05 s	Java	2014-05-12 14:51:02
5	Jens Ståhl	0.05 s	Java	2014-05-12 15:20:11
6	Jonas Haglund	0.05 s	Java	2014-05-12 16:56:57
7	Nick Wu	0.05 s	Java	2015-10-19 12:47:50
8	Gustaf Pihl	0.05 s	Java	2016-03-25 21:01:13
9	Finn Lidbetter	0.05 s	Java	2016-08-20 17:41:53
10	Erik Baalhuis	0.05 s	Java	2016-10-17 21:03:20

#	User	Runtime	Language	Date
1	Samuel Högfeldt	0.08 s	JavaScript (Node.js)	2022-07-19 13:51:22

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2017-07-08 16:51:04
2	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-04-20 07:54:41

#	User	Runtime	Language	Date
1	Timothy Gaede	0.67 s	Julia	2024-09-15 09:29:13

#	User	Runtime	Language	Date
1	Alexandre Conte	0.20 s	Kotlin	2021-08-24 16:43:50
2	Adam Rankin	0.20 s	Kotlin	2023-09-02 05:26:18

#	User	Runtime	Language	Date
1	이정섭	0.00 s	OCaml	2023-11-30 23:57:37

#	User	Runtime	Language	Date
1	Haggai Liu	0.02 s	Python 2	2017-04-18 05:55:20
2	Abdul Zakkar	0.02 s	Python 2	2017-08-28 01:04:05
3	Andreas Björklund	0.03 s	Python 2	2018-12-14 09:14:34
4	Garðar Ingvarsson	0.03 s	Python 2	2019-03-24 15:29:16
5	Wang Zhi Jian	0.03 s	Python 2	2019-05-11 14:49:57
6	Lars Åström	0.03 s	Python 2	2019-11-01 12:12:24
7	Yanmarshus Bachtiar	0.03 s	Python 2	2020-10-01 07:33:42

#	User	Runtime	Language	Date
1	Nils Gustafsson	0.02 s	Python 3	2015-04-14 20:44:58
2	Adrien Coulier	0.02 s	Python 3	2015-09-26 17:29:03
3	Robin Andersson	0.02 s	Python 3	2016-05-23 15:18:44
4	Lionel KITIHOUN	0.02 s	Python 3	2017-02-15 15:01:43
5	Hidden user	0.02 s	Python 3	2017-07-03 20:47:56
6	Eric Törnqvist	0.02 s	Python 3	2017-09-21 23:52:48
7	Michael McEwan	0.02 s	Python 3	2017-09-26 16:49:11
8	Doris Brown	0.02 s	Python 3	2017-10-05 01:39:50
9	Atli Fannar Franklín	0.02 s	Python 3	2017-12-05 14:04:29
10	Hien Le	0.02 s	Python 3	2018-02-02 23:59:44

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-03-23 13:06:39

#	User	Runtime	Language	Date
1	Joshua Ji	0.00 s	Rust	2020-08-31 17:08:10
2	Chun Mun Soon	0.00 s	Rust	2021-07-26 03:34:38

#	User	Length	Language	Date
1	Thomas Feld	55	APL	2023-03-23 13:13:32
2	Andrea Piseri	75	APL	2023-12-01 00:36:20

#	User	Length	Language	Date
1	Ivan Petrov	216	C	2019-09-10 16:34:12
2	Axel Svensson	245	C	2022-07-18 22:09:37
3	Henrik Sandström	359	C	2009-12-03 12:43:28
4	André Palmborg	367	C	2021-04-01 02:26:07

#	User	Length	Language	Date
1	Ruben Rystedt	414	C#	2024-11-17 17:21:44
2	Klas af Geijerstam	560	C#	2017-06-05 14:39:55
3	Armin Krauss	651	C#	2018-11-08 11:19:47
4	Jeremiah A. Stringer	847	C#	2017-09-24 04:20:45
5	Bryan Albert	882	C#	2014-12-30 20:18:38
6	Rickard Bemm	1055	C#	2021-03-26 17:44:20
7	Vijaya Sekhar Gullapalli	1089	C#	2017-12-11 21:18:03
8	Kasper Kabell	1610	C#	2023-01-29 02:29:12
9	Simon Ståhlberg	4081	C#	2014-05-12 13:41:53
10	Andreas Löfwenmark	4081	C#	2014-05-12 16:54:38

#	User	Length	Language	Date
1	Mikko Sysikaski	224	C++	2008-10-02 18:39:36
2	Xavier Loose	230	C++	2017-09-25 19:15:12
3	Frederick Pek	232	C++	2021-05-23 05:45:05
4	محمد أبتور	246	C++	2017-03-29 03:09:51
5	Anders Sjöqvist	252	C++	2008-10-02 16:11:31
6	Robert Cummings	261	C++	2018-01-05 21:00:01
7	Garðar Ingvarsson	266	C++	2019-03-24 15:21:39
8	Hidden user	291	C++	2009-03-12 22:28:12
9	Greg Hamerly	294	C++	2020-11-19 23:16:59
10	Hidden user	298	C++	2006-12-08 16:11:56

#	User	Length	Language	Date
1	Norbert Voelker	361	Go	2023-03-23 17:30:30
2	Thomas Cole	2060	Go	2024-03-20 06:03:18

#	User	Length	Language	Date
1	Niklas Rosén	211	Haskell	2014-05-12 15:27:25
2	Bjarki Baldursson Harksen	277	Haskell	2021-11-09 12:43:42
3	Intrets	317	Haskell	2019-12-29 22:18:18
4	Lars Corbijn	370	Haskell	2016-09-03 18:47:33
5	Blake Hyde	562	Haskell	2016-06-10 14:41:52
6	William Henrich	751	Haskell	2021-11-12 23:23:45
7	Brent Yorgey	1755	Haskell	2018-06-11 21:18:32

#	User	Length	Language	Date
1	Soldà Federico	363	Java	2019-08-28 19:24:04
2	Lucas Wood	380	Java	2017-04-22 01:44:35
3	Zimu Qin	381	Java	2015-07-14 19:51:56
4	Xuehui Chen	391	Java	2018-08-17 18:09:33
5	Veronica von Bose	406	Java	2017-06-24 19:41:20
6	Doug Goodman	422	Java	2017-09-02 15:50:32
7	Nguyen Phuoc Bao Hoang	445	Java	2017-07-29 07:46:28
8	Erik Baalhuis	536	Java	2015-09-16 16:34:48
9	Aaron Michael	539	Java	2024-04-05 22:46:41
10	Hidden user	540	Java	2017-09-26 01:55:23

#	User	Length	Language	Date
1	Samuel Högfeldt	785	JavaScript (Node.js)	2022-07-19 13:51:22

#	User	Length	Language	Date
1	Peter Kedemo	221	JavaScript (SpiderMonkey)	2017-07-08 16:51:04
2	Christian Cederquist	226	JavaScript (SpiderMonkey)	2023-04-20 07:54:41

#	User	Length	Language	Date
1	Timothy Gaede	1760	Julia	2024-09-15 09:29:13

#	User	Length	Language	Date
1	Adam Rankin	345	Kotlin	2023-09-02 05:27:11
2	Alexandre Conte	557	Kotlin	2021-08-24 16:43:50

#	User	Length	Language	Date
1	이정섭	252	OCaml	2023-11-30 23:57:37

#	User	Length	Language	Date
1	Garðar Ingvarsson	152	Python 2	2019-03-24 15:29:16
2	Haggai Liu	166	Python 2	2017-04-18 05:55:20
3	Andreas Björklund	171	Python 2	2018-12-14 09:14:34
4	Yanmarshus Bachtiar	308	Python 2	2020-10-01 07:33:42
5	Lars Åström	376	Python 2	2019-11-01 12:12:24
6	Abdul Zakkar	385	Python 2	2017-08-28 01:04:05
7	Wang Zhi Jian	413	Python 2	2019-05-11 14:49:57

#	User	Length	Language	Date
1	Benjamin Z White	100	Python 3	2023-06-10 16:40:19
2	Lawry Sorenson	108	Python 3	2023-09-07 17:06:00
3	Tommi Järvenpää	111	Python 3	2024-03-27 14:42:22
4	Henna K	111	Python 3	2024-03-28 19:48:29
5	Hidden user	116	Python 3	2023-11-30 21:53:55
6	Ahmed Chamseddine	119	Python 3	2025-07-01 09:31:56
7	Peter Stauder	122	Python 3	2023-03-26 14:16:12
8	Hidden user	126	Python 3	2023-07-13 04:22:14
9	Andrew Tapia	127	Python 3	2022-11-21 06:07:52
10	Isaac Erdman	129	Python 3	2024-11-22 03:02:48

#	User	Length	Language	Date
1	Thomas Feld	75	Ruby	2023-03-23 13:08:06

#	User	Length	Language	Date
1	Chun Mun Soon	865	Rust	2021-07-26 03:34:38
2	Joshua Ji	866	Rust	2020-08-31 17:08:10

Solution running time distribution