Problem C
Lazy River Defense — Problem Statistics

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Submissions	49
Accepted submissions	7
Submission ratio	14.29%
Authors	9
Accepted authors	4
Author ratio	44.44%

#	User	Runtime	Language	Date
1	Charlie Zheng	0.00 s	C++	2025-03-08 22:59:59
2	Nick Wu	0.00 s	C++	2025-08-26 17:33:58

#	User	Runtime	Language	Date
1	Charlie Zheng	0.04 s	Python 3	2025-03-08 22:59:25
2	Duoduo Zhao	0.04 s	Python 3	2025-08-21 05:05:19
3	Hidden user	0.06 s	Python 3	2025-03-08 23:53:26

#	User	Length	Language	Date
1	Nick Wu	7351	C++	2025-08-26 17:33:58
2	Charlie Zheng	8321	C++	2025-03-08 22:59:59

#	User	Length	Language	Date
1	Charlie Zheng	2361	Python 3	2025-03-08 22:59:25
2	Hidden user	3154	Python 3	2025-03-09 00:04:08
3	Duoduo Zhao	6025	Python 3	2025-08-21 05:05:19

Solution running time distribution