Problem A
A Tree and Two Edges — Problem Statistics

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Submissions	612
Accepted submissions	108
Submission ratio	17.65%
Authors	127
Full solves [?]	82
Full solve Ratio	64.57%

#	User	Runtime	Language	Date
1	Kha Le	0.03 s	C++	2023-05-30 11:23:21
2	Richard Wang	0.03 s	C++	2023-06-01 03:26:41
3	Jeremy Lim	0.03 s	C++	2025-05-04 11:30:06
4	Ziyi Zhang	0.04 s	C++	2023-06-18 07:34:58
5	Innokentiy Kaurov	0.04 s	C++	2024-05-04 22:19:28
6	Christian Yongwhan Lim	0.04 s	C++	2024-06-09 03:45:21
7	Ian DeHaan	0.06 s	C++	2024-05-04 23:03:19
8	Matthew Li	0.06 s	C++	2025-04-18 07:30:57
9	Mindaugas Kazlauskas	0.06 s	C++	2025-05-29 09:27:55
10	Rishi Sankar	0.07 s	C++	2023-05-31 16:43:26

#	User	Runtime	Language	Date
1	Jacob Huebner	0.51 s	Java	2023-05-30 02:34:18
2	Finn Lidbetter	2.03 s	Java	2023-05-30 15:27:57

#	User	Runtime	Language	Date
1	Jacob Huebner	0.59 s	Kotlin	2023-06-06 08:57:07

#	User	Runtime	Language	Date
1	Chris Kopp	0.33 s	Python 3	2024-04-22 07:44:37
2	Riko Jacob	0.38 s	Python 3	2023-12-12 19:26:04
3	Jason Oliphant	0.40 s	Python 3	2025-05-10 23:23:26
4	Doug Goodman	1.30 s	Python 3	2023-06-17 18:26:46
5	Andreas Björklund	2.91 s	Python 3	2024-11-17 08:50:14

#	User	Length	Language	Date
1	Xiaoou Zhou	2251	C++	2024-04-26 23:51:10
2	Zac Friggstad	2326	C++	2023-06-03 00:35:22
3	Lint key	2395	C++	2024-09-27 11:09:02
4	Evan Michael Bailey	2407	C++	2024-01-29 23:49:02
5	Anthony Fetelya	2417	C++	2023-05-31 20:43:55
6	Jens Kollberg	2426	C++	2023-09-10 01:26:07
7	Max Jiang	2848	C++	2023-06-03 02:58:51
8	Zitian Tang	2848	C++	2023-10-25 03:34:41
9	Ziyi Zhang	2856	C++	2023-06-18 07:34:58
10	Teikn Smith	2877	C++	2023-05-30 18:06:00

#	User	Length	Language	Date
1	Jacob Huebner	4620	Java	2023-05-30 02:34:18
2	Finn Lidbetter	10007	Java	2023-05-30 15:27:57

#	User	Length	Language	Date
1	Jacob Huebner	3206	Kotlin	2023-06-06 08:57:07

#	User	Length	Language	Date
1	Andreas Björklund	2646	Python 3	2024-11-17 08:50:14
2	Chris Kopp	3374	Python 3	2024-04-22 07:44:37
3	Jason Oliphant	3768	Python 3	2025-05-10 23:23:26
4	Doug Goodman	4244	Python 3	2023-06-17 18:26:46
5	Riko Jacob	4339	Python 3	2023-12-12 19:26:04

Solution running time distribution