Problem A
Black Friday — Problem Statistics

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Submissions	1185
Accepted submissions	266
Submission ratio	22.45%
Authors	235
Full solves [?]	231
Full solve Ratio	98.30%

#	User	Runtime	Language	Date
1	Kevin Seminario	0.01 s	C++ with Memory Check	2025-10-12 03:04:13
2	Taylor Neely	0.01 s	C++ with Memory Check	2025-10-20 03:19:15
3	Wyatt Golden	0.01 s	C++ with Memory Check	2025-11-08 06:40:04
4	Praveena Arni	0.01 s	C++ with Memory Check	2025-11-24 00:51:37

#	User	Runtime	Language	Date
1	Raza Retiwala	0.02 s	Python 3	2017-01-21 06:05:30
2	Christine Dominic	0.04 s	Python 3	2025-09-11 19:31:36
3	Yu Lim	0.04 s	Python 3	2025-09-11 19:41:26
4	Sehej Kumar	0.04 s	Python 3	2025-09-11 20:01:04
5	Aryan Aneesh	0.04 s	Python 3	2025-09-11 21:00:22
6	Noga Rosenberg	0.04 s	Python 3	2025-09-11 21:36:12
7	Carson Davis	0.04 s	Python 3	2025-09-11 21:36:34
8	Bethany Aung	0.04 s	Python 3	2025-09-11 23:56:34
9	Andy Nguyen	0.04 s	Python 3	2025-09-12 00:32:44
10	Nathan Tran	0.04 s	Python 3	2025-09-12 02:29:24

#	User	Length	Language	Date
1	Wyatt Golden	511	C++ with Memory Check	2025-11-08 06:40:04
2	Kevin Seminario	642	C++ with Memory Check	2025-10-12 03:04:13
3	Praveena Arni	700	C++ with Memory Check	2025-11-24 00:51:37
4	Taylor Neely	745	C++ with Memory Check	2025-10-20 03:19:15

#	User	Length	Language	Date
1	Neha P Reddy	212	Python 3	2026-02-03 00:30:30
2	Bob Zhu	245	Python 3	2026-02-03 02:20:07
3	Jonathan Ho	252	Python 3	2025-09-14 06:37:25
4	Arsh Koul	264	Python 3	2026-02-03 06:47:08
5	Dominic Paruolo	272	Python 3	2025-09-12 21:14:11
6	Ryan Zhou	276	Python 3	2026-02-03 19:26:00
7	Danyal Saeed	287	Python 3	2025-09-14 18:32:09
8	Justin Wong	288	Python 3	2025-09-15 02:51:56
9	Fabian Medina	288	Python 3	2025-09-15 04:43:13
10	Jacqueline Nguyen	296	Python 3	2026-02-05 02:32:05

Solution running time distribution