Problem A
Book Circle — Problem Statistics

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Submissions	150
Accepted submissions	89
Submission ratio	59.33%
Authors	86
Accepted authors	84
Author ratio	97.67%

#	User	Runtime	Language	Date
1	William Gan	0.01 s	C++	2017-03-09 04:08:47
2	Su Xuan	0.01 s	C++	2017-03-15 08:32:26
3	Tan Wee Kean	0.01 s	C++	2024-03-18 16:59:50
4	Gao Tianrun	0.01 s	C++	2024-03-18 17:27:28
5	Immanuel Chia	0.01 s	C++	2024-03-19 06:20:10
6	Ong Wei Hong	0.01 s	C++	2024-03-19 13:44:01
7	Tan Kwang Thiag	0.01 s	C++	2024-03-20 11:44:33
8	Gustav Kalander	0.01 s	C++	2024-03-23 08:44:54
9	LIU YUHANG	0.01 s	C++	2025-03-11 09:28:54
10	Xan Ng	0.01 s	C++	2025-03-11 12:36:16

#	User	Runtime	Language	Date
1	Dominic Berzin Chua Way Gin	0.10 s	Python 3	2025-03-10 14:48:27
2	Lim Jun Hup	0.12 s	Python 3	2022-09-18 08:34:15
3	Nicholas Russell Saerang	0.42 s	Python 3	2025-03-10 14:00:45
4	Tam Keng Hong	0.75 s	Python 3	2024-03-20 14:36:46

#	User	Length	Language	Date
1	Rafael Kristoforus Yanto	797	C++	2025-03-17 05:52:04
2	Kiên Nguyễn Tiến Trung	834	C++	2017-03-12 07:32:27
3	Govind Venugopalan	999	C++	2017-03-13 14:45:27
4	Albert Ariel Putra	1066	C++	2024-03-20 00:37:03
5	Oleh Naver	1090	C++	2024-03-24 20:55:42
6	Ng Tze Henn	1091	C++	2024-03-18 17:00:41
7	Nguyen An Thinh	1263	C++	2025-03-16 09:48:21
8	William Gan	1332	C++	2017-03-09 04:08:47
9	Roman Yanushevskyi	1336	C++	2024-03-25 09:40:39
10	Lee Yi Heng	1345	C++	2024-03-18 16:04:13

#	User	Length	Language	Date
1	Nicholas Russell Saerang	773	Python 3	2025-03-10 14:00:45
2	Lim Jun Hup	1242	Python 3	2022-09-18 08:34:15
3	Tam Keng Hong	2205	Python 3	2024-03-20 14:36:46
4	Dominic Berzin Chua Way Gin	4086	Python 3	2025-03-10 14:48:27

Solution running time distribution