Problem N
Counting Subsequences (Hard) — Problem Statistics

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Submissions	15
Accepted submissions	11
Submission ratio	73.33%
Authors	9
Full solves [?]	9
Full solve Ratio	100.00%

#	User	Runtime	Language	Date
1	Tingjie Zhong	0.44 s	C++	2025-11-16 23:17:25
2	Hidden user	0.64 s	C++	2025-11-17 09:23:36
3	Xander Fair	0.93 s	C++	2025-09-20 20:59:47

#	User	Runtime	Language	Date
1	Haochen Jia	0.16 s	Java	2025-11-24 00:03:10
2	Hidden user	0.65 s	Java	2025-11-13 21:25:49

#	User	Runtime	Language	Date
1	Hidden user	0.45 s	Python 3	2025-11-14 03:57:47
2	Richard Wu	0.48 s	Python 3	2025-09-28 21:48:44

#	User	Runtime	Language	Date
1	Tianyi Zhang	0.50 s	Python 3 with NumPy	2025-11-23 08:58:28

#	User	Runtime	Language	Date
1	Logan Travis	0.17 s	Rust	2025-11-24 07:34:11

#	User	Length	Language	Date
1	Xander Fair	1258	C++	2025-09-20 20:59:47
2	Tingjie Zhong	1767	C++	2025-11-16 23:17:25
3	Hidden user	1993	C++	2025-11-17 09:23:36

#	User	Length	Language	Date
1	Hidden user	1883	Java	2025-11-13 21:25:49
2	Haochen Jia	4040	Java	2025-11-24 00:03:10

#	User	Length	Language	Date
1	Richard Wu	698	Python 3	2025-09-28 21:48:44
2	Hidden user	1154	Python 3	2025-11-14 03:57:47

#	User	Length	Language	Date
1	Tianyi Zhang	1759	Python 3 with NumPy	2025-11-23 08:58:28

#	User	Length	Language	Date
1	Logan Travis	2186	Rust	2025-11-24 07:32:58

Solution running time distribution