Problem A
Buggy Robot — Problem Statistics

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Submissions	584
Accepted submissions	179
Submission ratio	30.65%
Authors	165
Full solves [?]	135
Full solve Ratio	81.82%

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	C	2019-09-06 23:27:09
2	Ivan Petrov	0.01 s	C	2019-11-05 10:10:05

#	User	Runtime	Language	Date
1	Juan Miguel Vilar	0.02 s	Haskell	2025-10-17 10:53:23

#	User	Runtime	Language	Date
1	Fajrin Aziz	0.09 s	Java	2025-11-20 15:47:05
2	Chris Wu	0.10 s	Java	2016-11-07 19:45:42
3	Nick Wu	0.12 s	Java	2016-12-05 05:44:22
4	Josenildo Silva	0.12 s	Java	2017-07-14 04:33:21
5	Bjørn Dons	0.12 s	Java	2023-12-31 20:03:09
6	Brent Allard	0.14 s	Java	2017-02-17 20:59:15
7	Jasper Lu	0.14 s	Java	2017-11-05 04:08:59
8	Hidden user	0.14 s	Java	2018-05-23 23:44:59
9	Crystal Sharpe	0.14 s	Java	2022-06-25 17:45:36
10	Mitch Price	0.15 s	Java	2017-03-27 04:10:48

#	User	Runtime	Language	Date
1	Michael Aghassi	0.15 s	JavaScript (Node.js)	2024-12-02 15:29:12

#	User	Runtime	Language	Date
1	Aksel Holbek Sørbye	0.80 s	Kotlin	2025-09-08 15:51:27

#	User	Runtime	Language	Date
1	Jesper Öqvist	0.45 s	Python 2	2018-09-26 18:32:11
2	Martin Wan	0.47 s	Python 2	2017-11-10 18:06:02

#	User	Runtime	Language	Date
1	Laurien	0.11 s	Python 3	2024-11-07 07:45:43
2	Nicholas Russell Saerang	0.12 s	Python 3	2023-07-06 02:23:17
3	Ena Ilis	0.12 s	Python 3	2024-01-23 21:05:21
4	David Llorens	0.12 s	Python 3	2025-10-22 13:20:49
5	Ram Basnet	0.17 s	Python 3	2023-10-24 06:46:14
6	Mathias Tejs	0.20 s	Python 3	2020-11-03 23:18:56
7	Pim Agterberg	0.21 s	Python 3	2024-09-05 21:53:11
8	Kaverappa O T	0.23 s	Python 3	2021-05-16 15:01:26
9	Andreas Björklund	0.34 s	Python 3	2022-05-27 19:19:32
10	Gladwin Yeo	0.38 s	Python 3	2022-07-10 12:09:45

#	User	Runtime	Language	Date
1	Thomas Feld	0.73 s	Ruby	2023-10-31 14:26:17

#	User	Runtime	Language	Date
1	Daniel Anker Hermansen	0.10 s	Rust	2023-12-26 17:13:55

#	User	Length	Language	Date
1	Ivan Petrov	3447	C	2019-11-05 10:10:05
2	Hidden user	4230	C	2019-09-06 23:27:09

#	User	Length	Language	Date
1	Yufeng Zou	1335	C++	2020-09-04 13:20:57
2	Dmitry Lyubshin	1390	C++	2023-07-08 15:36:49
3	Johan Wind	1551	C++	2018-10-10 23:52:58
4	Chen Chongsong	1624	C++	2017-11-11 10:59:45
5	William Gan	1735	C++	2018-02-09 17:32:46
6	Frederick Pek	1740	C++	2021-12-09 07:43:44
7	Alexander Skidanov	1758	C++	2025-02-26 17:56:37
8	Zhongnian Tao	1865	C++	2022-02-26 19:50:37
9	Emily Raucci	1927	C++	2020-08-30 23:09:17
10	Lê Duy Thức	1981	C++	2020-03-10 11:21:07

#	User	Length	Language	Date
1	Juan Miguel Vilar	4657	Haskell	2025-10-17 10:53:23

#	User	Length	Language	Date
1	Jasper Lu	2078	Java	2017-11-05 04:08:59
2	Sam Zheng	2267	Java	2022-02-26 21:03:49
3	Hidden user	2397	Java	2018-05-23 23:44:59
4	Brent Allard	2399	Java	2017-02-17 20:59:15
5	Josenildo Silva	2607	Java	2017-07-14 04:33:21
6	Jiru Xu	2755	Java	2017-09-15 12:48:22
7	Crystal Sharpe	3105	Java	2022-06-25 17:45:36
8	Fajrin Aziz	3164	Java	2025-11-20 15:47:05
9	Mitch Price	3194	Java	2017-03-27 04:10:48
10	Doug Goodman	3222	Java	2018-07-02 16:44:51

#	User	Length	Language	Date
1	Michael Aghassi	2047	JavaScript (Node.js)	2024-12-02 15:28:37

#	User	Length	Language	Date
1	Aksel Holbek Sørbye	28411	Kotlin	2025-09-08 15:51:27

#	User	Length	Language	Date
1	Jesper Öqvist	1395	Python 2	2018-09-26 18:32:11
2	Martin Wan	1599	Python 2	2017-11-10 18:06:02

#	User	Length	Language	Date
1	David Llorens	721	Python 3	2025-10-22 14:10:29
2	Ena Ilis	908	Python 3	2024-01-23 21:05:21
3	Nicholas Russell Saerang	1112	Python 3	2023-07-06 02:23:17
4	Laurien	1112	Python 3	2024-11-07 07:45:43
5	Mathias Tejs	1541	Python 3	2020-11-03 23:18:56
6	Andreas Björklund	1553	Python 3	2022-05-27 19:19:32
7	Tylan McKinney	1779	Python 3	2022-03-10 18:38:22
8	Nicholas Winschel	1840	Python 3	2021-10-22 22:08:12
9	Pim Agterberg	1868	Python 3	2024-09-05 21:53:11
10	Ram Basnet	1916	Python 3	2023-10-24 06:46:14

#	User	Length	Language	Date
1	Thomas Feld	290	Ruby	2023-10-31 14:46:41

#	User	Length	Language	Date
1	Daniel Anker Hermansen	28725	Rust	2023-12-26 17:13:55

Solution running time distribution