Problem A
A1 Paper — Problem Statistics

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Submissions	406
Accepted submissions	126
Submission ratio	31.03%
Authors	131
Full solves [?]	115
Full solve Ratio	87.79%

#	User	Runtime	Language	Date
1	Andrey Pridgen	0.01 s	C++ with Memory Check	2026-01-23 22:41:12

#	User	Runtime	Language	Date
1	Jeffrey Formica	0.06 s	Java	2023-02-19 01:14:26
2	Eduardo Sandoval	0.09 s	Java	2019-04-06 00:13:51

#	User	Runtime	Language	Date
1	Tyler Durden	0.03 s	Python 2	2018-04-13 23:39:00

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2018-04-13 23:20:09
2	Luke Witt	0.02 s	Python 3	2018-04-16 18:59:55
3	Yamen Al Masalmeh	0.02 s	Python 3	2019-04-05 22:03:49
4	Chase Hinesman	0.02 s	Python 3	2019-04-05 22:28:50
5	Jared J Pauletti	0.02 s	Python 3	2019-04-06 06:47:36
6	Julio Maldonado	0.02 s	Python 3	2019-04-13 21:31:23
7	Grant Ballard	0.02 s	Python 3	2019-04-14 03:26:25
8	Hidden user	0.02 s	Python 3	2019-04-14 04:46:10
9	Aarya Bookseller	0.04 s	Python 3	2026-01-23 22:27:58
10	Toren Long	0.04 s	Python 3	2026-01-23 22:45:31

#	User	Runtime	Language	Date
1	Macy Drew	0.05 s	Python 3 with NumPy	2023-02-11 00:00:54
2	William Park	0.05 s	Python 3 with NumPy	2023-02-19 03:17:31

#	User	Length	Language	Date
1	Kenny Lin	525	C++	00:54:35
2	Hidden user	580	C++	2026-01-27 23:25:59
3	Hidden user	609	C++	2018-04-18 10:21:29
4	Hidden user	629	C++	2019-04-09 19:18:57
5	Hidden user	640	C++	2023-02-19 04:39:57
6	Hidden user	660	C++	09:23:54
7	Gian Rodriguez	673	C++	2023-02-15 19:51:14
8	Joshua Duncan	684	C++	2018-04-14 00:27:51
9	Peter Just	704	C++	2023-02-13 22:47:57
10	Hidden user	760	C++	2026-01-25 03:03:46

#	User	Length	Language	Date
1	Andrey Pridgen	1544	C++ with Memory Check	2026-01-23 22:41:12

#	User	Length	Language	Date
1	Jeffrey Formica	1624	Java	2023-02-19 01:14:26
2	Eduardo Sandoval	2313	Java	2019-04-06 00:13:51

#	User	Length	Language	Date
1	Tyler Durden	718	Python 2	2018-04-13 23:39:00

#	User	Length	Language	Date
1	Isaac Xu	287	Python 3	2026-01-29 03:05:14
2	Yonghwan Kim	300	Python 3	2023-02-22 08:21:43
3	Axel Fontaine	332	Python 3	2026-01-28 22:18:47
4	Hidden user	338	Python 3	2026-01-23 23:36:46
5	Nishanth Gandhe	359	Python 3	2026-01-29 01:21:56
6	Chase Hinesman	400	Python 3	2019-04-05 22:28:50
7	Grant Ballard	406	Python 3	2019-04-14 03:26:25
8	Hidden user	411	Python 3	2026-01-27 22:02:25
9	Brady Ji	432	Python 3	2026-01-23 23:59:17
10	Kane Dong	439	Python 3	2026-01-24 00:16:20

#	User	Length	Language	Date
1	William Park	626	Python 3 with NumPy	2023-02-19 03:17:31
2	Macy Drew	939	Python 3 with NumPy	2023-02-11 00:00:54

Solution running time distribution