Problem A
Familiar Digit — Problem Statistics

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Submissions	324
Accepted submissions	81
Submission ratio	25.00%
Authors	83
Accepted authors	61
Author ratio	73.49%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.03 s	C	2020-01-14 14:13:49

#	User	Runtime	Language	Date
1	Viet An Pham	0.03 s	C++	2017-11-05 05:05:46
2	Ranald Lam	0.04 s	C++	2017-11-05 04:59:47
3	William Gan	0.04 s	C++	2017-11-05 07:58:47
4	Wiwit Rifa'i	0.04 s	C++	2017-11-05 18:53:08
5	Nguyen Cao Duy	0.04 s	C++	2022-12-10 09:15:10
6	Ba Thai Pham	0.06 s	C++	2017-11-05 16:22:19
7	Phạm Thắng	0.07 s	C++	2017-11-05 06:04:36
8	karrigan	0.07 s	C++	2023-02-21 18:03:49
9	Huy Trương	0.08 s	C++	2020-12-09 06:51:22
10	Đức Minh	0.10 s	C++	2019-09-30 04:30:00

#	User	Runtime	Language	Date
1	D. Salgado	0.34 s	Python 3	2023-06-11 20:57:10
2	Nicholas Russell Saerang	1.50 s	Python 3	2025-06-19 08:27:28

#	User	Length	Language	Date
1	Ivan Petrov	3870	C	2020-01-14 14:13:49

#	User	Length	Language	Date
1	Ba Thai Pham	1480	C++	2017-11-05 16:22:19
2	Đức Minh	1920	C++	2019-09-30 04:30:00
3	Văn Hiệp	2139	C++	2023-03-07 18:34:28
4	Shiro	2246	C++	2022-08-02 05:29:59
5	Brandon Zhang	2360	C++	2024-02-07 10:39:05
6	Dương Đào	2468	C++	2022-11-14 16:44:33
7	Anh Duc Le	2495	C++	2017-11-07 04:50:12
8	Hidden user	2502	C++	2017-11-05 06:58:11
9	Phú Thịnh Phạm Hoài	2504	C++	2017-11-28 09:38:06
10	Phạm Cao Nguyên	2519	C++	2017-11-05 05:13:00

#	User	Length	Language	Date
1	Nicholas Russell Saerang	1282	Python 3	2025-06-19 16:30:35
2	D. Salgado	2482	Python 3	2023-06-11 20:57:10

Solution running time distribution