Problem D
Bounding Robots — Problem Statistics

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Submissions	4190
Accepted submissions	2249
Submission ratio	53.68%
Authors	2177
Full solves [?]	2018
Full solve Ratio	92.70%

#	User	Runtime	Language	Date
1	Robert Low	0.02 s	C#	2016-07-17 11:34:52
2	Duelene Olson	0.02 s	C#	2016-09-30 20:59:22
3	Ugnius Skučas	0.02 s	C#	2016-10-18 12:23:03
4	Jens Mossig	0.02 s	C#	2017-02-19 19:33:42
5	Rasmus Brants	0.02 s	C#	2017-05-11 15:00:09
6	Alejandro Cabrerizo	0.02 s	C#	2017-09-07 02:50:32
7	Hidden user	0.02 s	C#	2017-09-08 03:25:20
8	Johan Pettersson	0.02 s	C#	2018-02-11 08:11:25
9	Kunwei Zhang	0.02 s	C#	2018-02-15 05:13:48
10	Дмитро Рудий	0.02 s	C#	2018-04-23 14:04:00

#	User	Runtime	Language	Date
1	David Cawthon	0.02 s	Common Lisp	2020-09-13 17:48:19

#	User	Runtime	Language	Date
1	Carson Black	0.04 s	F#	2022-11-19 01:22:35
2	Patrick Bahr	0.05 s	F#	2021-02-23 21:33:18
3	Jacob Harris Cryer Kragh	0.05 s	F#	2022-06-13 20:41:37

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2021-04-14 19:45:53
2	Krzysztof Gibuła	0.02 s	Go	2021-07-03 02:27:29
3	My Name	0.05 s	Go	2018-10-30 16:42:19
4	Vaughan Andrews	0.05 s	Go	2019-03-28 02:39:56
5	Felix Fatum	0.07 s	Go	2022-11-09 14:24:46

#	User	Runtime	Language	Date
1	Peter Deal	0.01 s	Haskell	2016-05-16 04:09:39
2	Matthew Johnson	0.01 s	Haskell	2017-02-17 03:44:28
3	John Grzechowiak	0.01 s	Haskell	2017-03-25 20:06:23
4	Abel Martin	0.01 s	Haskell	2017-03-27 11:17:16
5	Morten Lohne	0.01 s	Haskell	2017-09-06 17:43:48
6	Brent Yorgey	0.01 s	Haskell	2017-10-13 07:11:37
7	Håkon Flatval	0.01 s	Haskell	2018-08-20 23:37:15
8	Hidden user	0.01 s	Haskell	2019-08-22 21:47:20
9	Jan Hrček	0.01 s	Haskell	2020-10-27 11:33:18
10	Caleb Surovik	0.01 s	Haskell	2021-07-02 01:10:39

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.07 s	Java	2016-09-26 00:48:14
2	CUX "INDIO" PRADA	0.07 s	Java	2025-01-09 00:33:20
3	Zachary Stewart	0.08 s	Java	2015-10-02 05:11:16
4	Merlin Govier	0.08 s	Java	2015-10-19 15:04:21
5	Michael Sullivan	0.08 s	Java	2015-12-27 01:37:29
6	Hidden user	0.08 s	Java	2016-05-16 17:34:03
7	Aron Bergman	0.08 s	Java	2017-04-18 08:37:40
8	William Brigham	0.08 s	Java	2017-04-27 19:50:05
9	Jasper van Merle	0.08 s	Java	2017-05-01 12:30:49
10	Steven Cheng	0.08 s	Java	2017-09-02 17:39:52

#	User	Runtime	Language	Date
1	Daniel Fitzpatrick	0.06 s	JavaScript (Node.js)	2024-08-26 12:30:13
2	Chris Wong	0.43 s	JavaScript (Node.js)	2021-02-10 16:38:51
3	John	0.43 s	JavaScript (Node.js)	2021-03-08 10:21:05
4	Andoko Chandra	0.48 s	JavaScript (Node.js)	2020-10-08 20:25:34

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-01-09 19:10:21
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-03-16 22:32:40
3	Peter Menyes	0.01 s	JavaScript (SpiderMonkey)	2017-08-28 11:38:27
4	Michael Laszlo	0.02 s	JavaScript (SpiderMonkey)	2016-09-29 15:39:30
5	Omar Saad	0.03 s	JavaScript (SpiderMonkey)	2017-09-06 17:13:23
6	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2022-11-21 01:03:18
7	Jimmy Gustafsson	0.03 s	JavaScript (SpiderMonkey)	2024-07-19 22:17:50
8	Zach Tschetter	0.03 s	JavaScript (SpiderMonkey)	2025-02-06 02:49:43
9	Nicklas Utgaard	0.09 s	JavaScript (SpiderMonkey)	2018-06-28 15:29:16

#	User	Runtime	Language	Date
1	Danny Robinson	0.61 s	Julia	2023-06-24 15:48:10
2	Timothy Gaede	0.96 s	Julia	2024-04-04 06:56:11

#	User	Runtime	Language	Date
1	Hidden user	0.18 s	Kotlin	2019-12-28 05:10:05
2	Adam Rankin	0.24 s	Kotlin	2023-09-02 17:12:49
3	Dayan Ruben Gonzalez	0.26 s	Kotlin	2020-10-05 16:04:46
4	Nick Ivanov	0.27 s	Kotlin	2018-03-07 06:28:17
5	Einar Kjellback	0.29 s	Kotlin	2019-12-06 10:34:27
6	Neil Harmon	0.30 s	Kotlin	2019-04-19 10:44:48
7	Troy Warmboe	0.33 s	Kotlin	2020-02-11 00:20:23

#	User	Runtime	Language	Date
1	Matt Schwartz	0.00 s	OCaml	2023-12-30 03:02:38

#	User	Runtime	Language	Date
1	Silvena Lam	0.01 s	PHP	2018-03-01 16:37:18
2	Renate	0.01 s	PHP	2022-08-14 01:41:24

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.04 s	Python 2	2015-08-18 22:11:20
2	Urban Pettersson	0.04 s	Python 2	2015-11-25 18:45:18
3	Alexander Teno	0.04 s	Python 2	2016-03-21 16:15:47
4	Matas Kairaitis	0.04 s	Python 2	2016-05-05 15:16:47
5	Maksym Bendeberia	0.04 s	Python 2	2016-09-13 16:25:49
6	Frederik Højholt	0.04 s	Python 2	2016-09-27 13:15:20
7	Andrei Stoica	0.04 s	Python 2	2017-11-25 01:15:43
8	Mark Kaius Helenurm	0.04 s	Python 2	2018-09-04 15:49:41
9	Hasan Ramezani	0.05 s	Python 2	2016-07-07 11:49:14
10	Michael Laszlo	0.05 s	Python 2	2016-09-29 15:12:20

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2016-10-22 15:43:14
2	Hidden user	0.02 s	Python 3	2016-10-23 15:00:53
3	Natalie Gray	0.02 s	Python 3	2016-10-23 16:42:27
4	Melissa Tartari	0.02 s	Python 3	2016-10-23 20:48:49
5	Peter Wiggin	0.02 s	Python 3	2016-10-24 01:33:00
6	Hidden user	0.02 s	Python 3	2016-10-24 07:46:15
7	Hidden user	0.02 s	Python 3	2016-10-24 19:07:43
8	Yida Cai	0.02 s	Python 3	2016-10-24 19:52:46
9	Hidden user	0.02 s	Python 3	2016-10-24 20:57:38
10	Felicia Jiang	0.02 s	Python 3	2016-10-24 21:52:11

#	User	Runtime	Language	Date
1	Lasse Berglund	0.03 s	Ruby	2016-04-16 09:42:41
2	Hidden user	0.05 s	Ruby	2019-09-27 20:38:12
3	Macdara mac an tSionnaigh	0.05 s	Ruby	2019-09-27 20:47:57
4	Thomas Feld	0.07 s	Ruby	2022-11-14 09:32:14
5	Russell Ng	0.07 s	Ruby	2025-05-28 19:12:34

#	User	Length	Language	Date
1	Olle Eriksson	671	C	2016-11-28 23:45:15
2	Nguyễn Hoàng	697	C	2016-03-08 05:59:19
3	Matthew Weston	725	C	2022-01-07 13:14:11
4	Viet Anh Ho	740	C	2016-05-15 18:01:30
5	Yap Yi Juinn Jacelyn	753	C	2016-12-17 07:45:42
6	Emil Wihlander	833	C	2020-12-02 08:49:25
7	Andrew Roberts	867	C	2017-08-16 00:23:31
8	Johan Öhlin	921	C	2017-09-06 12:30:35
9	PhilCampbell	922	C	2021-01-04 18:42:25
10	Jerome Tujague	977	C	2018-06-28 18:58:04

#	User	Length	Language	Date
1	Göran Andersson	1050	C#	2022-05-12 19:53:09
2	Thomas Norris	1099	C#	2019-09-27 16:46:56
3	Hidden user	1263	C#	2017-09-08 03:25:20
4	Jens Mossig	1308	C#	2017-02-19 19:33:42
5	Henrik Andersson	1340	C#	2018-10-28 22:25:22
6	Kunwei Zhang	1375	C#	2018-02-15 05:13:48
7	Eric Bäckhage	1806	C#	2019-02-27 20:53:51
8	Robert Low	2280	C#	2016-07-17 11:34:52
9	Andriy Zyevakov	2402	C#	2015-10-14 11:12:20
10	Rasmus Brants	2443	C#	2017-05-11 15:00:09

#	User	Length	Language	Date
1	Tyler Fernando	309	C++	2022-11-08 04:29:57
2	Jordan A Hopkins	357	C++	2023-07-21 16:46:58
3	Antonio Molina Lovett	477	C++	2016-08-07 09:35:07
4	Jan Livens	533	C++	2017-04-09 15:12:12
5	William Gan	536	C++	2017-08-13 04:58:59
6	Chenghao Wang	571	C++	2023-02-11 21:52:12
7	Kelly Lu	574	C++	2019-02-10 03:40:26
8	Markus Mathiasen	577	C++	2021-05-09 12:30:54
9	Johan Wind	594	C++	2018-03-20 17:21:55
10	Subramanian Ramasamy	604	C++	2022-10-03 15:47:15

#	User	Length	Language	Date
1	David Cawthon	1138	Common Lisp	2020-09-13 17:48:19

#	User	Length	Language	Date
1	Carson Black	901	F#	2022-11-19 01:22:35
2	Jacob Harris Cryer Kragh	1971	F#	2022-06-13 20:41:37
3	Patrick Bahr	2589	F#	2021-02-23 21:33:18

#	User	Length	Language	Date
1	Felix Fatum	729	Go	2022-11-09 14:24:46
2	Vaughan Andrews	984	Go	2019-03-28 02:39:56
3	Krzysztof Gibuła	1019	Go	2021-07-03 02:27:29
4	My Name	1226	Go	2018-10-30 16:42:19
5	Norbert Voelker	1622	Go	2021-04-14 19:45:53

#	User	Length	Language	Date
1	Håkon Flatval	940	Haskell	2018-08-20 23:37:15
2	Morten Lohne	1080	Haskell	2017-09-06 17:43:48
3	Sebastian Banert	1109	Haskell	2023-10-24 14:18:19
4	Caleb Surovik	1175	Haskell	2021-07-02 01:10:39
5	Hidden user	1216	Haskell	2023-01-17 02:56:47
6	Matthew Johnson	1236	Haskell	2017-02-17 03:44:28
7	Brent Yorgey	1279	Haskell	2017-10-13 07:11:37
8	Hidden user	1323	Haskell	2019-08-22 21:47:20
9	Steinar Simonnes	1343	Haskell	2024-02-10 18:15:58
10	John Grzechowiak	1346	Haskell	2017-03-25 20:06:23

#	User	Length	Language	Date
1	Hidden user	890	Java	2017-03-31 00:06:31
2	Frank Ruskey	890	Java	2017-03-31 00:08:10
3	Prakash Sanyasi	901	Java	2018-10-15 20:42:31
4	Stephen Atwood	904	Java	2016-09-25 22:16:33
5	Doug Goodman	933	Java	2017-05-13 21:05:16
6	Carter Henderson	951	Java	2022-01-27 17:33:19
7	Emilie Hyslop	960	Java	2021-01-02 05:45:32
8	Maegan Patterson	979	Java	2019-10-14 00:22:52
9	Nathan Nguyen	979	Java	2020-06-15 18:49:33
10	Emil Saric	980	Java	2017-05-13 13:36:07

#	User	Length	Language	Date
1	Andoko Chandra	1691	JavaScript (Node.js)	2020-10-08 20:25:34
2	Daniel Fitzpatrick	1700	JavaScript (Node.js)	2024-08-26 12:30:13
3	Chris Wong	1705	JavaScript (Node.js)	2021-02-10 16:38:51
4	John	1904	JavaScript (Node.js)	2021-03-08 10:21:05

#	User	Length	Language	Date
1	Jimmy Gustafsson	299	JavaScript (SpiderMonkey)	2024-07-19 22:17:50
2	Zach Tschetter	600	JavaScript (SpiderMonkey)	2025-02-06 02:49:43
3	Christian Cederquist	731	JavaScript (SpiderMonkey)	2022-11-21 01:03:18
4	Bjørn Chr. Soltvedt	795	JavaScript (SpiderMonkey)	2016-03-16 22:32:40
5	Peter Kedemo	811	JavaScript (SpiderMonkey)	2016-01-09 19:10:21
6	Peter Menyes	870	JavaScript (SpiderMonkey)	2017-08-28 11:38:27
7	Omar Saad	921	JavaScript (SpiderMonkey)	2017-09-06 17:13:23
8	Michael Laszlo	1224	JavaScript (SpiderMonkey)	2016-09-29 15:39:30
9	Nicklas Utgaard	1556	JavaScript (SpiderMonkey)	2018-06-28 15:29:16

#	User	Length	Language	Date
1	Danny Robinson	320	Julia	2023-06-24 16:00:09
2	Timothy Gaede	2100	Julia	2024-04-04 06:56:11

#	User	Length	Language	Date
1	Einar Kjellback	1198	Kotlin	2019-12-06 10:34:27
2	Dayan Ruben Gonzalez	1260	Kotlin	2020-10-05 16:04:46
3	Adam Rankin	1327	Kotlin	2023-09-02 17:12:49
4	Troy Warmboe	1581	Kotlin	2020-02-11 00:20:23
5	Nick Ivanov	1597	Kotlin	2018-03-07 06:28:17
6	Hidden user	1914	Kotlin	2019-12-28 05:10:05
7	Neil Harmon	1966	Kotlin	2019-04-19 10:44:48

#	User	Length	Language	Date
1	Matt Schwartz	1335	OCaml	2023-12-30 03:02:38

#	User	Length	Language	Date
1	Renate	906	PHP	2022-08-14 01:41:24
2	Silvena Lam	1808	PHP	2018-03-01 18:09:29

#	User	Length	Language	Date
1	Thomas Feld	418	Python 2	2019-08-27 11:22:57
2	Jesper Öqvist	466	Python 2	2018-10-20 12:51:01
3	Andreas Björklund	521	Python 2	2021-03-25 16:14:23
4	Justin Su	523	Python 2	2019-10-06 06:41:05
5	Neal Zane	550	Python 2	2016-03-16 01:49:09
6	Haggai Liu	560	Python 2	2017-01-21 01:05:58
7	Hasan Ramezani	671	Python 2	2016-07-07 11:49:14
8	Johan Lyts	672	Python 2	2019-07-13 21:04:44
9	Nick Wu	683	Python 2	2015-11-19 19:40:45
10	John Tyler Beckingham	683	Python 2	2017-10-10 07:21:29

#	User	Length	Language	Date
1	Benjamin Z White	298	Python 3	2023-05-18 00:37:51
2	Charles Ancheta	307	Python 3	2023-03-24 10:12:53
3	Farzam Abrishami	325	Python 3	2024-01-19 00:03:14
4	Ahmed Chamseddine	331	Python 3	2024-07-22 10:30:09
5	Shashank Bhatt	373	Python 3	2022-11-18 07:07:44
6	Thibault Raffaillac	383	Python 3	2023-08-01 16:14:29
7	Philippe Hubert	434	Python 3	2024-01-08 19:08:25
8	Oskar Haarklou Veileborg	440	Python 3	2020-02-12 10:25:37
9	Tai Tze Kin	443	Python 3	2024-05-05 20:09:32
10	Harry Zhang	450	Python 3	2023-04-15 10:27:03

#	User	Length	Language	Date
1	Russell Ng	244	Ruby	2025-05-28 19:13:29
2	Thomas Feld	257	Ruby	2022-11-14 09:32:14
3	Hidden user	449	Ruby	2019-09-27 20:38:12
4	Lasse Berglund	858	Ruby	2016-04-16 09:42:41
5	Macdara mac an tSionnaigh	1097	Ruby	2019-09-27 20:47:57

#	User	Length	Language	Date
1	David Rasch	1066	Rust	2021-02-15 17:27:25
2	Kok Dith	1454	Rust	2021-08-09 14:04:20
3	David Zacek	1813	Rust	2021-05-27 19:40:39
4	Bas Dirks	1842	Rust	2022-01-02 11:55:05
5	Freek van Keulen	2002	Rust	2021-07-21 13:09:34
6	Eric Pinter	2077	Rust	2021-07-02 00:59:45
7	Tobias Nilsson	2476	Rust	2021-01-26 22:15:12
8	Hidden user	2579	Rust	2021-02-20 16:48:44
9	Isak Jägberg	2933	Rust	2024-11-06 15:07:49
10	Ron Stevens	3170	Rust	2024-09-28 06:54:05

Solution running time distribution