Problem A
Arm Coordination — Problem Statistics

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Submissions	2157
Accepted submissions	1284
Submission ratio	59.53%
Authors	1204
Accepted authors	1135
Author ratio	94.27%

#	User	Runtime	Language	Date
1	Sebastian Banert	0.00 s	Ada	2024-10-27 01:48:34

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-09-04 15:08:04

#	User	Runtime	Language	Date
1	Adrian Bay Dorph	0.02 s	C#	2021-11-26 16:22:26
2	Mikael Fiala-Lundström	0.02 s	C#	2021-11-28 11:20:49
3	Henrik Hallbert	0.02 s	C#	2022-03-12 12:29:58
4	Eric Weiss	0.02 s	C#	2022-07-22 22:37:24
5	Maykal Droshev	0.04 s	C#	2023-06-28 19:25:38
6	Benjamin Bilbeau	0.04 s	C#	2023-12-12 17:20:23
7	traxex	0.04 s	C#	2024-05-10 14:44:41
8	Russell Rios	0.05 s	C#	2024-09-25 01:26:52
9	Rowan Gomanee	0.05 s	C#	2024-10-25 16:21:47
10	Michael Damsgaard	0.05 s	C#	2024-11-29 23:37:43

#	User	Runtime	Language	Date
1	Jesper Bengtson	0.04 s	F#	2021-11-26 16:48:00
2	Jacob Harris Cryer Kragh	0.04 s	F#	2022-06-18 08:34:27
3	Krzys Hejno	0.08 s	F#	2025-02-05 18:07:58

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-11-17 20:53:48
2	Albert Rise Nielsen	0.08 s	Go	2021-11-26 16:24:25
3	Lukas L. Hjelmstrand	0.08 s	Go	2021-11-26 16:26:03
4	Niclas Søgaard Hjortkjær	0.08 s	Go	2021-11-26 16:26:23

#	User	Runtime	Language	Date
1	Ng Tek In	0.00 s	Haskell	2022-08-11 10:27:57
2	Lars Corbijn	0.00 s	Haskell	2022-09-19 21:04:37
3	Jan Hrček	0.00 s	Haskell	2022-11-13 10:52:47
4	Sebastian Banert	0.00 s	Haskell	2023-09-25 21:27:22
5	Hidden user	0.00 s	Haskell	2023-10-02 10:27:44
6	Charley Sheaffer	0.00 s	Haskell	2023-10-31 21:11:46
7	Steinar Simonnes	0.00 s	Haskell	2024-01-21 13:18:27
8	Brent Yorgey	0.01 s	Haskell	2021-11-19 12:15:33
9	Rudy Matela	0.01 s	Haskell	2024-04-22 10:18:46

#	User	Runtime	Language	Date
1	Nathaniel Lahn	0.04 s	Java	2025-02-26 04:28:42
2	Lee Heng Sheng	0.05 s	Java	2024-04-27 15:25:47
3	Asmus Tørsleff	0.06 s	Java	2021-11-26 17:19:53
4	Crystal Sharpe	0.06 s	Java	2021-12-05 04:20:45
5	Sven Rönnbäck	0.06 s	Java	2021-12-10 19:21:01
6	Marcus Peh	0.06 s	Java	2022-01-18 08:29:40
7	Simen Eggebø	0.06 s	Java	2022-02-28 12:39:02
8	Liam Keliher	0.06 s	Java	2022-04-24 13:11:55
9	Bowen Yang	0.06 s	Java	2023-08-25 04:54:03
10	Julius Griebel	0.06 s	Java	2023-12-29 19:33:01

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (Node.js)	2024-07-02 21:30:18
2	Nikola Stojkovski	0.08 s	JavaScript (Node.js)	2022-08-15 10:54:21
3	John	0.09 s	JavaScript (Node.js)	2022-08-19 09:40:37
4	Niamh Limerick	0.42 s	JavaScript (Node.js)	2022-02-21 01:28:48
5	Chris Wong	0.42 s	JavaScript (Node.js)	2022-03-15 17:12:59

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2021-11-16 12:09:12
2	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-10 16:52:49
3	Evan Magill	0.02 s	JavaScript (SpiderMonkey)	2024-04-20 08:08:09
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-06-14 23:39:53

#	User	Runtime	Language	Date
1	Timothy Gaede	0.57 s	Julia	2024-03-27 13:07:16
2	Danny Robinson	0.72 s	Julia	2023-09-04 15:07:27

#	User	Runtime	Language	Date
1	Nicholas Johnson	0.12 s	Kotlin	2022-02-21 04:48:40
2	Jacob Huebner	0.13 s	Kotlin	2022-02-22 23:03:01
3	Emil Wihlander	0.18 s	Kotlin	2023-07-27 13:37:10
4	Adam Rankin	0.19 s	Kotlin	2023-08-25 05:35:03
5	Troy Warmboe	0.19 s	Kotlin	2023-12-21 22:38:38
6	Martijn Muijsers	0.20 s	Kotlin	2024-05-30 21:18:09

#	User	Runtime	Language	Date
1	Zeheng Li	0.00 s	Lua	2023-12-11 23:30:21

#	User	Runtime	Language	Date
1	David Connolly	0.00 s	Pascal	2021-11-17 11:35:33
2	Ingemar Ragnemalm	0.00 s	Pascal	2021-12-11 11:40:13

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2023-07-21 00:19:53

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.02 s	Python 2	2022-06-17 15:42:54
2	Yanmarshus Bachtiar	0.03 s	Python 2	2021-11-27 12:49:08
3	Andreas Björklund	0.03 s	Python 2	2022-01-22 20:37:32
4	Johan Lyts	0.03 s	Python 2	2022-04-19 21:45:17

#	User	Runtime	Language	Date
1	Henry Xia	0.04 s	Python 3	2022-06-06 07:03:20
2	Petr	0.04 s	Python 3	2022-06-06 18:57:44
3	Hasan Kalzi	0.04 s	Python 3	2022-06-17 15:43:32
4	Arnav Sastry	0.04 s	Python 3	2022-06-24 05:11:49
5	Josh Askin	0.04 s	Python 3	2022-07-02 17:41:41
6	Jaga Saju	0.04 s	Python 3	2022-07-02 19:30:15
7	laur	0.04 s	Python 3	2022-07-03 02:45:01
8	Dean Gregory	0.04 s	Python 3	2022-07-08 19:52:10
9	Constantijn Dekker	0.04 s	Python 3	2022-07-09 11:58:13
10	Kattis Speedrun	0.04 s	Python 3	2022-07-22 12:45:57

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Ruby	2021-11-27 23:11:28
2	Nikola Stojkovski	0.05 s	Ruby	2022-08-15 11:16:59
3	Saado, E. (Eli, Student B-CS)	0.06 s	Ruby	2022-09-23 22:57:49
4	Thomas Feld	0.06 s	Ruby	2022-11-16 13:26:38

#	User	Length	Language	Date
1	Sebastian Banert	468	Ada	2024-10-27 01:48:34

#	User	Length	Language	Date
1	Danny Robinson	76	Bash	2023-09-04 15:08:04

#	User	Length	Language	Date
1	Martin Blom	110	C	2023-10-30 14:46:21
2	R.P. Gerner	158	C	2024-09-30 15:52:18
3	Allan Nouri	199	C	2023-11-14 09:39:54
4	林良承	201	C	2024-09-11 04:54:32
5	紅茶	224	C	2023-08-28 00:55:19
6	Szymon Kucharski	227	C	2022-02-16 16:15:59
7	Jeroen Jongkees	229	C	2023-04-12 21:24:37
8	Mikael K Eriksson	239	C	2021-11-26 18:49:16
9	潘治均	244	C	2023-10-29 09:43:20
10	Yang Book	244	C	2024-09-11 05:40:59

#	User	Length	Language	Date
1	traxex	304	C#	2024-05-10 14:44:41
2	Eric Weiss	563	C#	2022-07-22 22:37:24
3	Umar Rasyid	634	C#	2025-06-28 07:37:46
4	Rowan Gomanee	710	C#	2024-10-25 16:21:47
5	Dennis Stegnell	727	C#	2025-03-08 07:48:16
6	Benjamin Bilbeau	809	C#	2023-12-12 17:20:23
7	Maykal Droshev	893	C#	2023-06-28 19:25:38
8	Russell Rios	980	C#	2024-09-25 01:26:52
9	Adrian Bay Dorph	1100	C#	2021-11-26 16:22:26
10	Henrik Hallbert	1139	C#	2022-03-12 12:29:58

#	User	Length	Language	Date
1	Jonas Rouven Schoenauer	154	C++	2023-10-24 02:07:22
2	Gian Peña	191	C++	2021-11-25 10:34:58
3	yok939	198	C++	2024-02-02 15:11:46
4	Tuukka Korhonen	200	C++	2022-02-27 12:14:47
5	chiauyun weng	201	C++	2023-10-29 07:30:11
6	Aak	203	C++	2023-10-04 13:55:20
7	45趙郡儀Ivy	207	C++	2024-11-08 06:26:29
8	卡比獸	209	C++	2024-10-30 04:25:42
9	Grae Yeandle	211	C++	2021-11-19 17:18:49
10	Muhammad Ali	211	C++	2024-04-19 17:47:17

#	User	Length	Language	Date
1	Krzys Hejno	404	F#	2025-02-05 18:07:58
2	Jacob Harris Cryer Kragh	677	F#	2022-06-18 08:34:27
3	Jesper Bengtson	1988	F#	2021-11-26 16:48:00

#	User	Length	Language	Date
1	Lukas L. Hjelmstrand	190	Go	2021-11-26 16:26:03
2	Niclas Søgaard Hjortkjær	382	Go	2021-11-26 16:26:23
3	Norbert Voelker	691	Go	2021-11-17 20:53:48
4	Albert Rise Nielsen	1525	Go	2021-11-26 16:24:25

#	User	Length	Language	Date
1	Rudy Matela	90	Haskell	2024-04-22 10:18:46
2	Brent Yorgey	117	Haskell	2021-11-19 12:15:33
3	Sebastian Banert	163	Haskell	2023-09-25 21:27:22
4	Steinar Simonnes	232	Haskell	2024-01-21 13:18:27
5	Lars Corbijn	246	Haskell	2022-09-19 21:04:37
6	Hidden user	327	Haskell	2023-10-02 10:27:44
7	Charley Sheaffer	366	Haskell	2023-10-31 21:11:46
8	Jan Hrček	443	Haskell	2022-11-13 10:52:47
9	Ng Tek In	457	Haskell	2022-08-11 10:27:57

#	User	Length	Language	Date
1	Carter Henderson	383	Java	2022-04-19 18:04:51
2	Victor Clayton Barnett	395	Java	2022-01-29 02:39:05
3	Leslie Yip	412	Java	2022-08-12 13:27:50
4	David Vinje	416	Java	2021-11-26 16:53:15
5	Andreas Guldborg Hansen	424	Java	2021-11-26 16:22:15
6	Mark van Helvoort	442	Java	2024-03-28 14:16:21
7	Ben Cobb	446	Java	2022-11-14 00:39:50
8	Marshall D Feng	454	Java	2021-12-05 02:51:47
9	Gabriel Porch	455	Java	2025-05-04 15:18:44
10	William Skou Heidemann	456	Java	2021-11-26 16:15:45

#	User	Length	Language	Date
1	Nikola Stojkovski	407	JavaScript (Node.js)	2022-08-15 10:54:21
2	Hidden user	458	JavaScript (Node.js)	2023-09-13 05:16:07
3	Chris Wong	709	JavaScript (Node.js)	2022-03-15 17:12:59
4	Niamh Limerick	772	JavaScript (Node.js)	2022-02-21 01:28:48
5	John	1686	JavaScript (Node.js)	2022-08-19 09:40:37

#	User	Length	Language	Date
1	Evan Magill	120	JavaScript (SpiderMonkey)	2024-04-20 08:08:09
2	Jimmy Gustafsson	144	JavaScript (SpiderMonkey)	2024-06-14 23:43:21
3	Christian Cederquist	156	JavaScript (SpiderMonkey)	2023-01-10 16:52:49
4	Bjørn Chr. Soltvedt	185	JavaScript (SpiderMonkey)	2021-11-16 12:27:58

#	User	Length	Language	Date
1	Danny Robinson	105	Julia	2023-09-04 15:07:27
2	Timothy Gaede	550	Julia	2024-03-27 13:07:16

#	User	Length	Language	Date
1	Adam Rankin	250	Kotlin	2023-08-25 05:35:03
2	Emil Wihlander	274	Kotlin	2023-07-27 13:37:10
3	Jacob Huebner	291	Kotlin	2022-02-22 23:03:01
4	Troy Warmboe	355	Kotlin	2023-12-21 22:38:38
5	Martijn Muijsers	563	Kotlin	2024-05-30 21:18:09
6	Nicholas Johnson	2193	Kotlin	2022-02-21 04:48:40

#	User	Length	Language	Date
1	Zeheng Li	109	Lua	2023-12-11 23:30:21

#	User	Length	Language	Date
1	Ingemar Ragnemalm	195	Pascal	2021-12-11 11:40:13
2	David Connolly	823	Pascal	2021-11-17 11:35:33

#	User	Length	Language	Date
1	Renate	283	PHP	2023-07-21 00:19:53

#	User	Length	Language	Date
1	Johan Lyts	114	Python 2	2022-04-19 21:45:17
2	Andreas Björklund	165	Python 2	2022-01-22 20:37:32
3	Yanmarshus Bachtiar	201	Python 2	2021-11-27 12:49:08
4	Hasan Kalzi	422	Python 2	2022-06-17 15:42:54

#	User	Length	Language	Date
1	Clement Oh	76	Python 3	2023-07-01 09:48:27
2	Hao Ye	82	Python 3	2024-09-04 11:27:55
3	Benjamin Z White	91	Python 3	2023-05-03 13:39:40
4	Guillermo Hernández	95	Python 3	2022-09-29 08:22:54
5	Charles Ancheta	95	Python 3	2023-04-09 08:30:34
6	Maximilien Vanhaverbeke	95	Python 3	2024-11-25 21:40:29
7	Victorio NASCIMENTO	95	Python 3	2024-11-28 00:06:26
8	Henrik Olsen Eide	95	Python 3	2023-09-05 18:02:39
9	Kévin Dubrulle	95	Python 3	2024-04-02 11:50:57
10	PRIYADHARSHIKA M	97	Python 3	2025-04-09 07:57:16

#	User	Length	Language	Date
1	Thomas Feld	66	Ruby	2023-01-11 08:44:26
2	Hidden user	126	Ruby	2021-11-27 23:11:28
3	Saado, E. (Eli, Student B-CS)	174	Ruby	2022-09-23 22:57:49
4	Nikola Stojkovski	257	Ruby	2022-08-15 11:16:59

#	User	Length	Language	Date
1	David Rasch	361	Rust	2022-10-03 14:05:56
2	Vincent Lagerros	400	Rust	2025-02-04 14:45:17
3	Aaron Yeoh Cruz	469	Rust	2022-01-19 18:17:40
4	Isak Jägberg	526	Rust	2024-10-18 21:25:35
5	Pankajkumar Patro	567	Rust	2024-10-20 19:11:22
6	Bas Dirks	600	Rust	2022-01-05 05:50:49
7	Alex G	601	Rust	2022-02-08 23:07:56
8	Luna Peshkov	675	Rust	2022-09-18 16:48:00
9	Alice Ryhl	780	Rust	2021-11-26 16:18:21
10	Eric Pinter	983	Rust	2021-11-27 17:47:38

Solution running time distribution