Problem B
Roomba 2 — Problem Statistics

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Submissions	218
Accepted submissions	153
Submission ratio	70.18%
Authors	60
Accepted authors	50
Author ratio	83.33%

#	User	Score	Language	Date
1	Ólafur Andri	100	C#	2018-03-13 23:44:53
2	Viktor Máni Mönster	60	C#	2018-03-14 02:49:15

#	User	Score	Language	Date
1	Hidden user	100	Go	2021-10-24 03:23:35

#	User	Score	Language	Date
1	Brent Yorgey	100	Haskell	2024-11-30 00:15:04
2	Steinar Simonnes	100	Haskell	2024-12-08 22:11:46
3	Bravery Aung	100	Haskell	2025-07-26 02:25:15

#	User	Score	Language	Date
1	Bjørn Dons	100	Java	2025-04-10 20:39:19
2	Nguyen Viet Quang	100	Java	2025-07-21 12:25:25
3	Sindri Magnusson	50	Java	2017-10-03 23:34:58

#	User	Score	Language	Date
1	Bjørn Chr. Soltvedt	100	JavaScript (SpiderMonkey)	2025-01-15 00:08:35

#	User	Score	Language	Date
1	Timothy Gaede	10	Julia	2025-04-30 20:09:41

#	User	Score	Language	Date
1	주안석	100	Python 2	2017-11-29 12:54:14
2	Guðni Natan Gunnarsson	100	Python 2	2017-02-18 02:43:44
3	Sigurður Jens Albertsson	100	Python 2	2018-01-14 19:33:34

#	User	Score	Language	Date
1	Thomas Feld	100	Ruby	2025-02-17 12:58:56

#	User	Score	Language	Date
1	Vincent Lagerros	100	Rust	2025-01-24 21:07:28
2	Hidden user	100	Rust	2025-05-29 10:34:57

#	User	Runtime	Language	Date
1	Ólafur Andri	0.06 s	C#	2018-03-13 23:44:53

#	User	Runtime	Language	Date
1	Elvar Árni Sturluson	0.00 s	C++	2017-01-25 13:16:49
2	Elvar Árni Bjarnason	0.00 s	C++	2021-01-08 23:12:19
3	Arnav Sastry	0.00 s	C++	2025-01-28 04:53:08
4	Frans Meulenbroeks	0.00 s	C++	2025-04-28 22:46:28
5	Jesús Pacheco Alonso	0.00 s	C++	2025-05-22 14:06:50
6	Alexander Kravberg	0.00 s	C++	2025-07-24 14:10:38
7	Jiayi Liu	0.00 s	C++	2025-08-10 23:13:41
8	Samuel Hans Axel Backlund	0.00 s	C++	2025-09-06 09:55:45
9	Arnar Bjarni Arnarson	0.01 s	C++	2016-03-19 16:58:57
10	Samúel Arnar Hafsteinsson	0.01 s	C++	2020-05-05 01:11:16

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Go	2021-10-24 03:23:35

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2024-11-30 00:15:04
2	Steinar Simonnes	0.01 s	Haskell	2024-12-08 22:11:46
3	Bravery Aung	0.01 s	Haskell	2025-07-26 02:25:15

#	User	Runtime	Language	Date
1	Bjørn Dons	0.05 s	Java	2025-04-10 20:39:19
2	Nguyen Viet Quang	0.11 s	Java	2025-07-21 12:25:25

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2025-01-15 00:08:35

#	User	Runtime	Language	Date
1	주안석	0.08 s	Python 2	2017-11-29 12:54:14
2	Guðni Natan Gunnarsson	0.09 s	Python 2	2017-02-18 02:43:44
3	Sigurður Jens Albertsson	0.09 s	Python 2	2018-01-14 19:33:34

#	User	Runtime	Language	Date
1	Nicholas Russell Saerang	0.05 s	Python 3	2025-04-18 07:22:47
2	Gamithra Marga	0.06 s	Python 3	2017-12-05 12:52:35
3	Doug Goodman	0.06 s	Python 3	2024-11-30 18:17:19
4	Hidden user	0.06 s	Python 3	2024-12-31 19:17:58
5	Eric Leow Yu Quan	0.06 s	Python 3	2025-02-19 15:39:23
6	Levi Tourinho	0.06 s	Python 3	2025-07-20 11:03:36
7	Lezhi Shang	0.06 s	Python 3	2025-08-15 12:04:19
8	James Elías Sigurðarson	0.07 s	Python 3	2016-03-19 17:11:22
9	Atli Fannar Franklín	0.07 s	Python 3	2017-03-12 17:08:15
10	すうぇっりえるはこん	0.07 s	Python 3	2019-01-29 21:16:20

#	User	Runtime	Language	Date
1	Thomas Feld	0.08 s	Ruby	2025-02-17 12:58:56

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-01-24 21:07:28
2	Hidden user	0.01 s	Rust	2025-05-29 10:34:57

#	User	Length	Language	Date
1	Ólafur Andri	3746	C#	2018-03-13 23:44:53

#	User	Length	Language	Date
1	Frans Meulenbroeks	779	C++	2025-04-28 23:18:04
2	Arnar Bjarni Arnarson	1618	C++	2016-03-19 16:58:57
3	Jiayi Liu	1858	C++	2025-08-10 23:13:41
4	Elvar Árni Sturluson	2000	C++	2017-01-25 13:16:49
5	Elvar Árni Bjarnason	2246	C++	2021-01-08 23:12:19
6	Kristinn Hrafn Daníelsson	2321	C++	2023-11-05 23:29:57
7	Jesús Pacheco Alonso	2462	C++	2025-05-22 14:06:50
8	Samuel Hans Axel Backlund	2507	C++	2025-09-06 09:55:45
9	Benedikt Vilji Magnússon	2508	C++	2020-06-12 19:23:32
10	Gunnsteinn Þór Ólason	2646	C++	2025-04-03 18:51:10

#	User	Length	Language	Date
1	Hidden user	2467	Go	2021-10-24 03:23:35

#	User	Length	Language	Date
1	Brent Yorgey	1064	Haskell	2024-11-30 00:15:04
2	Bravery Aung	1083	Haskell	2025-07-26 02:25:15
3	Steinar Simonnes	2067	Haskell	2024-12-08 22:13:48

#	User	Length	Language	Date
1	Nguyen Viet Quang	3214	Java	2025-07-21 12:25:25
2	Bjørn Dons	6609	Java	2025-04-10 20:39:19

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	770	JavaScript (SpiderMonkey)	2025-01-16 11:48:59

#	User	Length	Language	Date
1	주안석	1305	Python 2	2017-11-29 12:54:14
2	Sigurður Jens Albertsson	1726	Python 2	2018-01-14 19:33:34
3	Guðni Natan Gunnarsson	2504	Python 2	2017-02-18 02:43:44

#	User	Length	Language	Date
1	Nicholas Russell Saerang	781	Python 3	2025-04-18 07:22:47
2	Ahmed Chamseddine	837	Python 3	2025-07-14 23:38:09
3	Samuel Qi	1189	Python 3	2025-08-10 16:21:52
4	Eva Sóllilja Einarsdóttir	1255	Python 3	2024-10-20 20:49:10
5	Doug Goodman	1465	Python 3	2024-11-30 18:17:19
6	James Elías Sigurðarson	1543	Python 3	2016-03-19 17:11:22
7	Lezhi Shang	1755	Python 3	2025-08-15 12:04:19
8	Levi Tourinho	1957	Python 3	2025-07-20 11:03:36
9	Hidden user	1975	Python 3	2024-12-31 19:17:58
10	すうぇっりえるはこん	2095	Python 3	2019-01-29 21:16:20

#	User	Length	Language	Date
1	Thomas Feld	311	Ruby	2025-02-17 13:42:16

#	User	Length	Language	Date
1	Vincent Lagerros	2316	Rust	2025-01-24 21:07:28
2	Hidden user	7848	Rust	2025-05-29 10:34:57

Solution running time distribution