Problem N
Counting Subsequences (Hard) — Problem Statistics

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Submissions	40
Accepted submissions	25
Submission ratio	62.50%
Authors	21
Full solves [?]	20
Full solve Ratio	95.24%

#	User	Runtime	Language	Date
1	Tingjie Zhong	0.44 s	C++	2025-11-16 23:17:25
2	Youngwoo Choi	0.56 s	C++	2025-12-04 17:26:24
3	Cyrus Garg	0.56 s	C++	2025-12-07 00:38:13
4	Nathan Yan	0.57 s	C++	2025-12-06 08:32:09
5	Hidden user	0.64 s	C++	2025-11-17 09:23:36
6	Jad Chehimi	0.78 s	C++	2025-12-07 22:33:59
7	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	Ximeng Duan	0.47 s	Python 3	2025-12-04 02:15:26
3	Richard Wu	0.48 s	Python 3	2025-09-28 21:48:44
4	Ahmed Abdul-Rafay	0.48 s	Python 3	2025-12-06 09:00:28
5	Jimi Lin	0.50 s	Python 3	2025-12-07 02:48:55
6	Nick Shan	0.51 s	Python 3	2025-12-09 03:01:15
7	Arman Tiwana	0.51 s	Python 3	2025-12-09 04:08:32
8	Roderick Lan	0.60 s	Python 3	2025-12-08 05:35:35
9	Rachit Anugula	0.73 s	Python 3	2025-11-30 20:07:02

#	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	Cyrus Garg	730	C++	2025-12-07 00:38:13
2	Xander Fair	1258	C++	2025-09-20 20:59:47
3	Jad Chehimi	1405	C++	2025-12-07 22:33:59
4	Nathan Yan	1507	C++	2025-12-06 08:32:09
5	Youngwoo Choi	1527	C++	2025-12-04 17:26:24
6	Tingjie Zhong	1767	C++	2025-11-16 23:17:25
7	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	Ximeng Duan	311	Python 3	2025-12-04 02:15:26
2	Rachit Anugula	612	Python 3	2025-11-30 20:07:02
3	Richard Wu	698	Python 3	2025-09-28 21:48:44
4	Hidden user	1154	Python 3	2025-11-14 03:57:47
5	Arman Tiwana	1297	Python 3	2025-12-09 04:08:32
6	Nick Shan	1325	Python 3	2025-12-09 03:01:15
7	Roderick Lan	1724	Python 3	2025-12-08 05:35:35
8	Ahmed Abdul-Rafay	1838	Python 3	2025-12-06 09:00:28
9	Jimi Lin	2421	Python 3	2025-12-07 02:48:55

#	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