Problem D
Counting Staircases — Problem Statistics

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Submissions	260
Accepted submissions	73
Submission ratio	28.08%
Authors	91
Accepted authors	70
Author ratio	76.92%

#	User	Runtime	Language	Date
1	Cole Miller	0.04 s	C++	2024-05-18 21:04:03
2	Richard Wang	0.04 s	C++	2024-09-07 05:53:15
3	Andrea Puddu	0.04 s	C++	2024-10-23 15:17:07
4	Patrick Deng	0.05 s	C++	2024-05-18 20:43:19
5	Brian Xue	0.05 s	C++	2024-05-18 20:52:01
6	Ryan Fu	0.05 s	C++	2024-05-18 20:53:25
7	Brian Law	0.05 s	C++	2024-05-18 20:55:28
8	Erik Ji	0.05 s	C++	2024-05-18 20:57:53
9	Evan Zhao	0.05 s	C++	2024-05-18 21:06:14
10	Stephen Zhu	0.05 s	C++	2024-05-18 21:09:51

#	User	Runtime	Language	Date
1	Bjørn Dons	0.43 s	Java	2024-08-05 19:59:23
2	Cooper Terrill	0.58 s	Java	2024-05-18 21:44:37
3	Maitian Sha	0.63 s	Java	2024-05-18 22:50:32
4	Cindy D	0.92 s	Java	2024-05-19 01:09:52
5	Arvin Ding	0.99 s	Java	2024-05-26 08:57:20

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.13 s	JavaScript (SpiderMonkey)	2024-09-17 16:41:19

#	User	Runtime	Language	Date
1	Lego Haryanto	0.13 s	Python 3	2025-05-14 01:32:59
2	Nathan Blanton	0.14 s	Python 3	2025-05-13 20:32:14
3	BENJAMIN LIU	0.15 s	Python 3	2024-05-18 21:18:20
4	Arsh Koneru	0.15 s	Python 3	2024-05-18 23:30:19
5	Doug Goodman	0.15 s	Python 3	2024-08-02 00:20:25
6	Wensi Ai	0.16 s	Python 3	2024-05-18 21:50:22
7	Gary Song	0.17 s	Python 3	2024-05-18 21:39:31
8	Nicholas Russell Saerang	0.17 s	Python 3	2024-08-08 17:52:01
9	Atli Fannar Franklín	0.17 s	Python 3	2024-08-18 15:23:12
10	Nicolas Ladendorf	0.18 s	Python 3	2024-05-18 21:44:42

#	User	Runtime	Language	Date
1	Hidden user	0.15 s	Swift	2024-08-12 12:58:40

#	User	Length	Language	Date
1	Daniel Bordeianu	532	C++	2025-03-28 15:50:39
2	Austin Geng	554	C++	2024-05-18 21:31:04
3	Mutiraj Laksanawisit	560	C++	2025-05-11 22:24:32
4	Hidden user	613	C++	2024-10-22 19:07:20
5	Lewis Lau	626	C++	2024-05-18 21:53:16
6	Connor Chang	692	C++	2024-05-18 23:00:05
7	SIBO PENG	718	C++	2024-05-18 21:16:57
8	Zixuan Ye	722	C++	2024-05-18 23:32:33
9	Allen Ma	755	C++	2024-05-18 21:51:45
10	Brian Xue	771	C++	2024-05-18 20:52:01

#	User	Length	Language	Date
1	Arvin Ding	1053	Java	2024-05-26 08:57:20
2	Cindy D	1190	Java	2024-05-19 01:09:52
3	Maitian Sha	1209	Java	2024-05-18 22:50:32
4	Bjørn Dons	5556	Java	2024-08-05 19:59:23
5	Cooper Terrill	7418	Java	2024-05-18 21:44:37

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	352	JavaScript (SpiderMonkey)	2024-09-17 16:46:39

#	User	Length	Language	Date
1	Arsh Koneru	265	Python 3	2024-05-18 23:30:19
2	Nicholas Russell Saerang	316	Python 3	2024-08-08 17:52:01
3	Doug Goodman	398	Python 3	2024-08-02 00:20:25
4	Lego Haryanto	444	Python 3	2025-05-14 01:32:59
5	Wensi Ai	462	Python 3	2024-05-18 21:50:22
6	Nathan Blanton	523	Python 3	2025-05-13 20:32:14
7	Atli Fannar Franklín	536	Python 3	2024-08-18 15:23:12
8	BENJAMIN LIU	550	Python 3	2024-05-18 21:18:20
9	Nicolas Ladendorf	660	Python 3	2024-05-18 21:44:42
10	ZI YUE SU	705	Python 3	2024-05-18 22:21:45

#	User	Length	Language	Date
1	Hidden user	779	Swift	2024-08-12 12:58:40

Solution running time distribution