Problem A
Sentry Robots — Problem Statistics

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Submissions	312
Accepted submissions	138
Submission ratio	44.23%
Authors	126
Full solves [?]	121
Full solve Ratio	96.03%

#	User	Runtime	Language	Date
1	Loh Jun Yong Kevin	0.33 s	Java	2022-10-09 05:08:36
2	Thuta Htun Wai	0.61 s	Java	2022-10-12 06:52:25
3	Katz Roy	0.68 s	Java	2022-09-30 04:11:23
4	Siew Kheng Hun	0.69 s	Java	2022-10-11 16:42:29

#	User	Runtime	Language	Date
1	Pang Yuan Ker	0.12 s	Python 3	2022-09-26 09:48:45
2	Wang Yibin	0.16 s	Python 3	2021-10-11 20:58:34
3	Zhang Grace Jia Yi	0.17 s	Python 3	2022-09-28 13:50:19
4	Ng Wee Han	0.17 s	Python 3	2022-10-10 15:49:55
5	Lim Jun Hup	0.19 s	Python 3	2022-10-10 12:24:41
6	Fang Yi Zeng	0.20 s	Python 3	2022-09-22 18:46:08
7	Kang Liwei	0.21 s	Python 3	2021-10-13 13:04:41
8	Lim Sheng Jie	0.25 s	Python 3	2021-10-12 20:19:36
9	Kok Zhao Jie	0.25 s	Python 3	2021-10-13 14:38:47
10	He Tingyu	0.28 s	Python 3	2022-10-12 06:08:35

#	User	Length	Language	Date
1	Roman Yanushevskyi	1694	C++	2024-03-17 17:22:10
2	Yeung Man Tsung	1830	C++	2024-03-18 09:16:32
3	Yiwen101	1921	C++	2024-03-12 14:21:11
4	Si Jie Tan	2094	C++	2026-03-11 09:15:43
5	Li Longcheng	2128	C++	2021-10-05 05:32:17
6	Raheja Arshelle	2162	C++	2026-03-15 11:49:45
7	Fidella Widjojo	2227	C++	2021-04-12 14:48:17
8	Albert Ariel Putra	2244	C++	2024-03-18 09:42:29
9	YanHao Ling	2245	C++	2021-04-12 13:56:49
10	Nguyen An Thinh	2253	C++	2025-03-09 21:35:02

#	User	Length	Language	Date
1	Thuta Htun Wai	3705	Java	2022-10-12 06:52:25
2	Siew Kheng Hun	4044	Java	2022-10-11 16:42:29
3	Katz Roy	10224	Java	2022-09-30 04:11:23
4	Loh Jun Yong Kevin	14179	Java	2022-10-09 05:08:36

#	User	Length	Language	Date
1	Nicholas Russell Saerang	1343	Python 3	2025-03-07 17:35:26
2	Kang Liwei	2174	Python 3	2021-10-13 13:04:41
3	Ruan Bo Kai	2683	Python 3	2022-09-21 07:18:48
4	Pang Yuan Ker	2712	Python 3	2022-09-26 09:48:45
5	Teoh Jun Jie	2740	Python 3	2022-10-07 19:12:45
6	Fang Yi Zeng	3002	Python 3	2022-09-22 18:46:08
7	Lim Jun Hup	3151	Python 3	2022-10-10 12:24:41
8	He Tingyu	5318	Python 3	2022-10-12 06:08:35
9	Wang Yibin	5525	Python 3	2021-10-11 20:58:34
10	Guo Yichao	6718	Python 3	2022-09-21 10:54:05

Solution running time distribution