Problem A
The Red Gem — Problem Statistics

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Submissions	343
Accepted submissions	55
Submission ratio	16.03%
Authors	75
Full solves [?]	44
Full solve Ratio	58.67%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.01 s	C	2019-07-12 08:07:32
2	Chris Lang	0.02 s	C	2017-05-19 14:11:04

#	User	Runtime	Language	Date
1	Demi Guo	0.01 s	C++	2016-03-07 04:33:02
2	Ioana-Maria Tamas	0.01 s	C++	2017-03-13 00:43:14
3	Andrew Liu	0.01 s	C++	2017-07-16 04:57:19
4	David Sturgill	0.01 s	C++	2018-05-24 09:30:25
5	Yen-Hsiang Chang	0.01 s	C++	2019-05-01 17:16:19
6	Hidden user	0.01 s	C++	2019-10-31 20:43:00
7	Yufan Huang	0.01 s	C++	2021-03-03 04:55:14
8	Andrew Polizzotto	0.01 s	C++	2021-06-27 14:38:56
9	Wesley Leung	0.01 s	C++	2021-09-26 23:51:55
10	Mingrui Liu	0.01 s	C++	2021-11-20 20:43:33

#	User	Runtime	Language	Date
1	Intrets	0.13 s	Haskell	2018-10-16 21:54:22

#	User	Runtime	Language	Date
1	Nick Wu	0.18 s	Java	2016-03-05 20:16:43
2	Doug Goodman	0.19 s	Java	2020-12-20 15:39:46
3	Ahmad Barhamje	0.21 s	Java	2018-03-14 21:54:56
4	Sharon Barak	0.36 s	Java	2018-03-15 20:29:00
5	William	0.45 s	Java	2025-04-26 19:04:02
6	Ioana Tamas	0.53 s	Java	2017-03-13 00:26:50
7	Jacqueline van der Meulen	0.53 s	Java	2019-12-29 07:34:54
8	Joshua Fair	0.57 s	Java	2018-03-14 20:37:27
9	Tamir Jamiyangarav	0.93 s	Java	2026-03-05 08:36:09

#	User	Length	Language	Date
1	Ivan Petrov	3558	C	2019-07-12 08:07:32
2	Chris Lang	10498	C	2017-05-19 14:11:04

#	User	Length	Language	Date
1	Hidden user	2222	C++	2019-10-31 20:43:00
2	Yen-Hsiang Chang	2421	C++	2019-05-01 17:16:19
3	Jannik Olbrich	2520	C++	2019-07-02 19:36:11
4	Ethan Chu	2553	C++	2023-09-26 07:29:05
5	Jeremy Lim	2813	C++	2025-07-23 04:59:29
6	Hidden user	2852	C++	2021-05-09 23:47:42
7	Antonio Molina Lovett	2930	C++	2016-03-06 00:17:12
8	Mingrui Liu	3309	C++	2021-11-20 20:43:33
9	Vo Khac Trieu	3538	C++	2026-03-11 06:06:59
10	Demi Guo	3571	C++	2016-03-07 04:33:02

#	User	Length	Language	Date
1	Intrets	4834	Haskell	2018-10-16 21:58:17

#	User	Length	Language	Date
1	Nick Wu	4388	Java	2016-03-05 20:16:43
2	Doug Goodman	4849	Java	2020-12-20 15:39:46
3	William	5947	Java	2025-04-26 19:04:02
4	Ioana Tamas	6751	Java	2017-03-13 00:26:33
5	Joshua Fair	7049	Java	2018-03-14 20:37:27
6	Ahmad Barhamje	8419	Java	2018-03-14 21:54:56
7	Tamir Jamiyangarav	8498	Java	2026-03-05 08:36:09
8	Sharon Barak	10717	Java	2018-03-15 20:29:00
9	Jacqueline van der Meulen	13170	Java	2019-12-29 07:34:54

Solution running time distribution