Problem A
Weak Vertices — Problem Statistics

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Submissions	10427
Accepted submissions	6575
Submission ratio	63.06%
Authors	5298
Full solves [?]	5273
Full solve Ratio	99.53%

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2024-10-25 08:36:19
2	Liew Xinru	0.04 s	Java	2025-10-24 04:36:19
3	Woo Chen Hinn	0.04 s	Java	2025-10-24 08:23:33
4	LI JIAJUN	0.04 s	Java	2025-10-24 08:35:07
5	Hidden user	0.05 s	Java	2024-11-20 09:54:39
6	lee jae won	0.05 s	Java	2025-10-24 04:57:25
7	Lee Jia Yi	0.06 s	Java	2024-03-30 08:13:44
8	Goh Hong Wei, Shawn	0.06 s	Java	2024-10-17 12:30:09
9	Zhu Daozheng	0.06 s	Java	2025-03-29 22:48:24
10	Kor Qian Fu	0.06 s	Java	2025-10-24 05:23:59

#	User	Runtime	Language	Date
1	Haocheng Hu	0.08 s	Python 3	2020-03-27 18:55:21
2	Muhammad Elfie Bin Rahim	0.08 s	Python 3	2021-11-09 11:46:59
3	Yap Yuanzhen	0.09 s	Python 3	2021-11-10 11:29:41
4	Zhang Tianyi	0.09 s	Python 3	2021-11-10 16:44:08
5	Song Siqi	0.10 s	Python 3	2020-11-10 12:06:37
6	Zheng Weiliang	0.10 s	Python 3	2020-11-10 16:15:00
7	Hidden user	0.10 s	Python 3	2020-11-10 16:37:39
8	Kunnath Satheesan Vineeth	0.10 s	Python 3	2020-11-12 16:29:43
9	Hidden user	0.10 s	Python 3	2020-11-13 15:48:54
10	Li YingHui	0.10 s	Python 3	2020-11-16 02:21:05

#	User	Length	Language	Date
1	Steven Halim	542	C++	2022-10-12 05:36:59
2	Lu Bingyuan	559	C++	2022-10-16 19:25:17
3	Wu Zhen	559	C++	2022-10-24 07:32:33
4	Li Sizhuang	582	C++	2022-10-18 04:15:54
5	Hidden user	584	C++	2019-07-23 08:17:34
6	John Tan	621	C++	2019-03-25 13:30:32
7	Nikhil Shashidhar	626	C++	2022-10-13 08:40:42
8	Hidden user	649	C++	2022-10-23 16:29:36
9	Bian Rui	660	C++	2022-03-23 04:32:09
10	Tay Jing Xuan	670	C++	2019-03-25 06:44:55

#	User	Length	Language	Date
1	Neo Wei Jun Samuel	399	Java	2025-03-24 09:10:07
2	Oliver Kong Tim Lok	402	Java	2024-10-25 07:12:31
3	Jeremy Lim	404	Java	2023-10-27 17:16:12
4	Zhang Manman	701	Java	2020-03-27 07:55:50
5	Violet Tan Zi Xin	725	Java	2020-03-27 03:11:27
6	Zhou Yunong	740	Java	2020-03-27 08:40:21
7	Hidden user	743	Java	2019-10-21 04:40:11
8	Muhammad Aiman Bin Jefren	760	Java	2025-10-24 05:40:50
9	Abishai Anargya Halim	766	Java	2024-10-17 03:44:43
10	SHI JINGYU	771	Java	2024-03-29 04:15:33

#	User	Length	Language	Date
1	Guk Yi Siong	162	Python 3	2024-01-08 16:18:40
2	Jeremy Lim	172	Python 3	2023-10-27 17:49:21
3	Ow Yong Jin Xuan	411	Python 3	2022-10-17 09:17:17
4	Lee Seungryeol	437	Python 3	2021-11-13 15:56:49
5	Tomohisa Kataoka	461	Python 3	2021-11-16 05:21:43
6	Wang Huiyi	482	Python 3	2021-11-10 20:41:15
7	Tongxianzi Niu	485	Python 3	2021-11-13 11:36:07
8	Varun Venkatesh Narayanan	502	Python 3	2021-11-14 14:52:16
9	Han Siyu	514	Python 3	2021-11-10 06:40:50
10	Cai Huihan	530	Python 3	2021-11-16 09:50:42

Solution running time distribution