Problem A
The Red Gem — Problem Statistics

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Submissions	337
Accepted submissions	53
Submission ratio	15.73%
Authors	72
Full solves [?]	42
Full solve Ratio	58.33%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.01 s	C	2019-07-12 10:07:32
2	Chris Lang	0.02 s	C	2017-05-19 16:11:04

#	User	Runtime	Language	Date
1	Demi Guo	0.01 s	C++	2016-03-07 05:33:02
2	Ioana-Maria Tamas	0.01 s	C++	2017-03-13 01:43:14
3	Andrew Liu	0.01 s	C++	2017-07-16 06:57:19
4	David Sturgill	0.01 s	C++	2018-05-24 11:30:25
5	Yen-Hsiang Chang	0.01 s	C++	2019-05-01 19:16:19
6	Hidden user	0.01 s	C++	2019-10-31 21:43:00
7	Yufan Huang	0.01 s	C++	2021-03-03 05:55:14
8	Andrew Polizzotto	0.01 s	C++	2021-06-27 16:38:56
9	Wesley Leung	0.01 s	C++	2021-09-27 01:51:55
10	Mingrui Liu	0.01 s	C++	2021-11-20 21:43:33

#	User	Runtime	Language	Date
1	Intrets	0.13 s	Haskell	2018-10-16 23:54:22

#	User	Runtime	Language	Date
1	Nick Wu	0.18 s	Java	2016-03-05 21:16:43
2	Doug Goodman	0.19 s	Java	2020-12-20 16:39:46
3	Ahmad Barhamje	0.21 s	Java	2018-03-14 22:54:56
4	Sharon Barak	0.36 s	Java	2018-03-15 21:29:00
5	William	0.45 s	Java	2025-04-26 21:04:02
6	Ioana Tamas	0.53 s	Java	2017-03-13 01:26:50
7	Jacqueline van der Meulen	0.53 s	Java	2019-12-29 08:34:54
8	Joshua Fair	0.57 s	Java	2018-03-14 21:37:27

#	User	Length	Language	Date
1	Ivan Petrov	3558	C	2019-07-12 10:07:32
2	Chris Lang	10498	C	2017-05-19 16:11:04

#	User	Length	Language	Date
1	Hidden user	2222	C++	2019-10-31 21:43:00
2	Yen-Hsiang Chang	2421	C++	2019-05-01 19:16:19
3	Jannik Olbrich	2520	C++	2019-07-02 21:36:11
4	Ethan Chu	2553	C++	2023-09-26 09:29:05
5	Jeremy Lim	2813	C++	2025-07-23 06:59:29
6	Hidden user	2852	C++	2021-05-10 01:47:42
7	Antonio Molina Lovett	2930	C++	2016-03-06 01:17:12
8	Mingrui Liu	3309	C++	2021-11-20 21:43:33
9	Demi Guo	3571	C++	2016-03-07 05:33:02
10	Andy Huang	3738	C++	2016-03-13 02:07:17

#	User	Length	Language	Date
1	Intrets	4834	Haskell	2018-10-16 23:58:17

#	User	Length	Language	Date
1	Nick Wu	4388	Java	2016-03-05 21:16:43
2	Doug Goodman	4849	Java	2020-12-20 16:39:46
3	William	5947	Java	2025-04-26 21:04:02
4	Ioana Tamas	6751	Java	2017-03-13 01:26:33
5	Joshua Fair	7049	Java	2018-03-14 21:37:27
6	Ahmad Barhamje	8419	Java	2018-03-14 22:54:56
7	Sharon Barak	10717	Java	2018-03-15 21:29:00
8	Jacqueline van der Meulen	13170	Java	2019-12-29 08:34:54

Solution running time distribution