Problem D
Red/Blue Spanning Tree — Problem Statistics

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Submissions	356
Accepted submissions	95
Submission ratio	26.69%
Authors	127
Full solves [?]	87
Full solve Ratio	68.50%

#	User	Runtime	Language	Date
1	Joey Yu	0.04 s	C++	2025-10-26 18:57:57
2	Benjamin Ghaderi	0.05 s	C++	2025-10-24 16:48:08
3	Waleed Chaudhry	0.12 s	C++	2024-10-29 06:13:08
4	Khalil Alobeid	0.12 s	C++	2024-10-29 23:35:04
5	Nikola Katov	0.14 s	C++	2023-10-24 14:15:47
6	Qasim	0.15 s	C++	2024-10-25 21:28:31

#	User	Runtime	Language	Date
1	Cesar Gonzalez	0.90 s	Java	2025-10-29 19:12:15
2	Giannino Lombardi	1.18 s	Java	2024-10-24 22:44:50
3	Kevin Patel	1.18 s	Java	2024-10-30 04:01:42
4	Leora Klee	1.18 s	Java	2024-10-31 02:53:46
5	Thomas Metaxas	1.56 s	Java	2024-10-29 00:45:48

#	User	Runtime	Language	Date
1	Kim Soubie-Giroux	0.20 s	Python 3	2024-10-29 00:36:42
2	Hyeonmin Soh	0.20 s	Python 3	2024-10-31 04:24:33
3	Isaac Stella	0.21 s	Python 3	2024-10-30 03:10:43
4	Aurelien Bouffanais	0.21 s	Python 3	2024-10-30 16:01:29
5	Xin Yuan Du	0.21 s	Python 3	2024-10-31 02:29:08
6	Negar Akbarpouran Badr	0.21 s	Python 3	2024-10-31 02:55:30
7	Ricky Youm	0.27 s	Python 3	2023-10-21 10:33:00
8	Steven Jeong	0.27 s	Python 3	2023-10-27 02:24:58
9	Masha Solaja	0.28 s	Python 3	2023-10-25 18:33:44
10	Philip Luo	0.28 s	Python 3	2024-10-28 22:28:20

#	User	Runtime	Language	Date
1	Jaiten Kang	0.43 s	Python 3 with NumPy	2025-10-28 05:14:00

#	User	Length	Language	Date
1	Khalil Alobeid	1033	C++	2024-10-29 23:35:04
2	Waleed Chaudhry	1035	C++	2024-10-29 06:13:08
3	Nikola Katov	1163	C++	2023-10-24 14:15:47
4	Joey Yu	1258	C++	2025-10-26 18:57:57
5	Benjamin Ghaderi	1842	C++	2025-10-24 16:48:08
6	Qasim	4786	C++	2024-10-25 21:28:31

#	User	Length	Language	Date
1	Kevin Patel	2303	Java	2024-10-30 04:01:42
2	Cesar Gonzalez	2908	Java	2025-10-29 19:12:15
3	Leora Klee	3065	Java	2024-10-31 02:53:46
4	Giannino Lombardi	3345	Java	2024-10-24 22:44:50
5	Thomas Metaxas	3843	Java	2024-10-29 00:45:48

#	User	Length	Language	Date
1	Ze Yuan Fu	640	Python 3	2023-10-21 07:34:03
2	Isaac Stella	641	Python 3	2024-10-30 03:10:43
3	Xin Yuan Du	644	Python 3	2024-10-31 02:29:08
4	Dan Greco	646	Python 3	2025-10-25 19:57:50
5	Yirong Pan	673	Python 3	2025-10-28 01:44:55
6	Steven Jeong	726	Python 3	2023-10-27 02:24:58
7	Ricky Youm	735	Python 3	2023-10-21 11:25:40
8	Aurelien Bouffanais	736	Python 3	2024-10-30 16:01:29
9	Sam Chen	766	Python 3	2025-10-29 17:01:46
10	Shotaro Nakamura	818	Python 3	2025-10-30 04:02:00

#	User	Length	Language	Date
1	Jaiten Kang	1539	Python 3 with NumPy	2025-10-28 05:14:00

Solution running time distribution