Problem B
Roomba 2 — Problem Statistics

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Submissions	128
Accepted submissions	78
Submission ratio	60.94%
Authors	36
Accepted authors	28
Author ratio	77.78%

#	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	Elvar Árni Sturluson	100	C++	2017-01-25 13:16:49
2	Elvar Árni Bjarnason	100	C++	2021-01-08 23:12:19
3	Arnar Bjarni Arnarson	100	C++	2016-03-19 16:58:57
4	Samúel Arnar Hafsteinsson	100	C++	2020-05-05 01:11:16
5	Kristinn Hrafn Daníelsson	100	C++	2023-11-05 23:29:57
6	Þórhallur Tryggvason	100	C++	2024-04-14 18:51:47
7	Gunnsteinn Þór Ólason	100	C++	2025-04-03 18:51:10
8	Benedikt Vilji Magnússon	100	C++	2020-06-12 19:23:32
9	Snorri S	60	C++	2023-11-07 00:54:37

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

#	User	Score	Language	Date
1	Sindri Magnusson	50	Java	2017-10-03 23:34:58

#	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
4	Hidden user	100	Python 2	2019-01-29 15:31:37
5	Unnar Bachmann	20	Python 2	2017-02-25 15:56:19

#	User	Score	Language	Date
1	Nicholas Russell Saerang	100	Python 3	2025-04-18 07:22:47
2	Gamithra Marga	100	Python 3	2017-12-05 12:52:35
3	James Elías Sigurðarson	100	Python 3	2016-03-19 17:11:22
4	Atli Fannar Franklín	100	Python 3	2017-03-12 17:08:15
5	すうぇっりえるはこん	100	Python 3	2019-01-29 21:16:20
6	Eva Sóllilja Einarsdóttir	100	Python 3	2024-10-20 20:49:10
7	Bjarki Ágúst Guðmundsson	100	Python 3	2025-01-12 05:57:15
8	Björn Gunnarsson	80	Python 3	2016-03-21 17:34:38
9	Óðinn Eyjólfsson	20	Python 3	2016-03-21 15:19:49
10	Viktor Saevarsson	10	Python 3	2016-03-22 18:07:18

#	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	Arnar Bjarni Arnarson	0.01 s	C++	2016-03-19 16:58:57
4	Samúel Arnar Hafsteinsson	0.01 s	C++	2020-05-05 01:11:16
5	Kristinn Hrafn Daníelsson	0.01 s	C++	2023-11-05 23:29:57
6	Þórhallur Tryggvason	0.01 s	C++	2024-04-14 18:51:47
7	Gunnsteinn Þór Ólason	0.01 s	C++	2025-04-03 18:51:10
8	Benedikt Vilji Magnússon	0.02 s	C++	2020-06-12 19:23:32

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

#	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
4	Hidden user	0.10 s	Python 2	2019-01-29 15:31:37

#	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	James Elías Sigurðarson	0.07 s	Python 3	2016-03-19 17:11:22
4	Atli Fannar Franklín	0.07 s	Python 3	2017-03-12 17:08:15
5	すうぇっりえるはこん	0.07 s	Python 3	2019-01-29 21:16:20
6	Eva Sóllilja Einarsdóttir	0.07 s	Python 3	2024-10-20 20:49:10
7	Bjarki Ágúst Guðmundsson	0.07 s	Python 3	2025-01-12 05:57:15

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

#	User	Length	Language	Date
1	Arnar Bjarni Arnarson	1618	C++	2016-03-19 16:58:57
2	Elvar Árni Sturluson	2000	C++	2017-01-25 13:16:49
3	Elvar Árni Bjarnason	2246	C++	2021-01-08 23:12:19
4	Kristinn Hrafn Daníelsson	2321	C++	2023-11-05 23:29:57
5	Benedikt Vilji Magnússon	2508	C++	2020-06-12 19:23:32
6	Gunnsteinn Þór Ólason	2646	C++	2025-04-03 18:51:10
7	Samúel Arnar Hafsteinsson	2852	C++	2020-05-05 01:11:16
8	Þórhallur Tryggvason	3091	C++	2024-04-14 18:51:47

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

#	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
4	Hidden user	2504	Python 2	2019-01-29 15:31:37

#	User	Length	Language	Date
1	Nicholas Russell Saerang	781	Python 3	2025-04-18 07:22:47
2	Eva Sóllilja Einarsdóttir	1255	Python 3	2024-10-20 20:49:10
3	James Elías Sigurðarson	1543	Python 3	2016-03-19 17:11:22
4	すうぇっりえるはこん	2095	Python 3	2019-01-29 21:16:20
5	Gamithra Marga	2352	Python 3	2017-12-05 12:52:35
6	Bjarki Ágúst Guðmundsson	2876	Python 3	2025-01-12 05:57:15
7	Atli Fannar Franklín	3058	Python 3	2024-11-27 17:48:21

Solution running time distribution