Problem AB
Cover up — Problem Statistics

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Submissions	402
Accepted submissions	62
Submission ratio	15.42%
Authors	78
Full solves [?]	54
Full solve Ratio	69.23%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2020-04-27 13:05:38

#	User	Runtime	Language	Date
1	Finn Lidbetter	0.08 s	Java	2018-11-04 16:03:00
2	Hidden user	0.09 s	Java	2023-02-03 21:13:52
3	Paul Boddington	0.15 s	Java	2016-05-11 16:34:46
4	Doug Goodman	0.16 s	Java	2020-05-10 18:27:04
5	David Brodsky	0.17 s	Java	2020-07-22 02:51:47
6	Erik Odenman	0.18 s	Java	2015-05-11 23:59:14
7	Saujas Nandi	0.20 s	Java	2019-09-07 23:42:34
8	Micah Stairs	0.33 s	Java	2016-10-01 16:19:09

#	User	Runtime	Language	Date
1	Danny Mittal	0.26 s	Kotlin	2023-01-28 05:48:54

#	User	Runtime	Language	Date
1	Yosuke Mizutani	0.03 s	Python 3	2019-11-26 14:55:09
2	Paul Swingle	0.07 s	Python 3	2022-11-13 08:06:14
3	Shang-En Huang	0.08 s	Python 3	2023-10-26 03:38:42
4	Josh Taylor	0.09 s	Python 3	2022-11-18 17:49:53
5	Duoduo Zhao	0.11 s	Python 3	2025-08-31 14:16:40

#	User	Length	Language	Date
1	Ivan Petrov	2056	C	2020-04-27 13:05:38

#	User	Length	Language	Date
1	Joakim Blikstad	1407	C++	2015-05-10 14:29:40
2	Hidden user	1691	C++	2021-05-12 18:44:20
3	Mårten Wiman	1717	C++	2015-05-10 14:13:18
4	Bjarki Ágúst Guðmundsson	1883	C++	2018-07-22 15:27:04
5	Henry Xia	1948	C++	2017-11-14 02:23:52
6	David Wärn	2061	C++	2015-05-10 14:57:25
7	Filippo Baroni	2118	C++	2017-11-04 00:35:01
8	Michael Pfeifer	2247	C++	2019-02-23 22:11:48
9	Prodan Radu-Matei	2267	C++	2022-02-09 17:33:48
10	Jeremy Lim	2276	C++	2024-06-29 19:32:05

#	User	Length	Language	Date
1	Micah Stairs	3825	Java	2016-10-01 16:19:09
2	Erik Odenman	4421	Java	2015-05-11 23:59:14
3	Doug Goodman	4582	Java	2020-05-10 18:27:04
4	Paul Boddington	4818	Java	2016-05-11 16:34:46
5	Hidden user	5340	Java	2023-02-03 21:13:52
6	Saujas Nandi	6100	Java	2019-09-07 23:42:34
7	Finn Lidbetter	6681	Java	2018-11-04 15:58:39
8	David Brodsky	10403	Java	2020-07-22 02:51:47

#	User	Length	Language	Date
1	Danny Mittal	3375	Kotlin	2023-01-28 05:48:54

#	User	Length	Language	Date
1	Shang-En Huang	1479	Python 3	2023-10-26 03:38:42
2	Josh Taylor	1835	Python 3	2022-11-18 17:49:53
3	Yosuke Mizutani	1993	Python 3	2019-11-26 14:55:09
4	Paul Swingle	2526	Python 3	2022-11-13 08:06:14
5	Duoduo Zhao	3743	Python 3	2025-08-31 14:16:40

Solution running time distribution