Problem A
Rainbow Trees — Problem Statistics

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Submissions	278
Accepted submissions	66
Submission ratio	23.74%
Authors	68
Full solves [?]	50
Full solve Ratio	73.53%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.01 s	C	2019-09-06 10:14:26

#	User	Runtime	Language	Date
1	Hidden user	0.08 s	Java	2014-10-23 12:07:41
2	Michael Sullivan	0.11 s	Java	2015-10-13 14:50:42
3	Nick Wu	0.11 s	Java	2017-11-09 19:54:52
4	Jimmy Mårdell	0.19 s	Java	2014-12-22 19:13:32
5	Sagnik Biswas	0.19 s	Java	2023-09-11 05:43:58
6	Michael O'Brien	0.22 s	Java	2022-03-05 19:12:38
7	Joshua Fair	0.30 s	Java	2021-09-26 21:57:05
8	Marshall D Feng	0.32 s	Java	2022-03-08 01:45:18
9	Sohom Dutta	0.33 s	Java	2023-09-11 06:31:01
10	Doug Goodman	0.36 s	Java	2019-08-28 19:01:12

#	User	Runtime	Language	Date
1	Andreas Björklund	0.07 s	Python 2	2022-03-17 20:19:41

#	User	Runtime	Language	Date
1	Duoduo Zhao	0.10 s	Python 3	2025-08-08 02:24:24
2	Hidden user	0.11 s	Python 3	2023-03-13 08:06:25
3	Luka Avbreht	0.13 s	Python 3	2021-01-27 14:07:22
4	ziga avbreht	0.13 s	Python 3	2021-04-05 17:33:24

#	User	Length	Language	Date
1	Ivan Petrov	1775	C	2019-09-06 10:14:26

#	User	Length	Language	Date
1	Ragur Krishnan	739	C++	2018-09-29 07:49:55
2	Brandon Zhang	804	C++	2020-07-24 08:22:02
3	Simon Lindholm	912	C++	2014-10-09 18:18:47
4	Charlie Liu	999	C++	2023-10-01 01:38:57
5	Dmitry Lyubshin	1037	C++	2023-06-18 14:47:35
6	Herman Karlsson	1066	C++	2021-01-09 15:42:17
7	Zachariah Goldthorpe	1085	C++	2018-09-23 00:49:12
8	SiBi	1109	C++	2019-05-19 13:03:02
9	Johan Sannemo	1130	C++	2014-10-09 18:35:51
10	Zac Friggstad	1165	C++	2018-09-26 17:38:43

#	User	Length	Language	Date
1	Marshall D Feng	1652	Java	2022-03-08 01:45:18
2	Joshua Fair	1843	Java	2021-09-26 21:57:05
3	Doug Goodman	1895	Java	2019-08-28 19:01:12
4	Sagnik Biswas	2000	Java	2023-09-11 05:43:58
5	Michael O'Brien	2212	Java	2022-03-05 19:12:38
6	Nick Wu	2396	Java	2017-11-09 19:54:52
7	Sohom Dutta	2946	Java	2023-09-11 06:30:33
8	Jimmy Mårdell	2999	Java	2014-12-22 19:13:32
9	Michael Sullivan	3147	Java	2015-10-13 19:17:22
10	Hidden user	7565	Java	2014-10-23 12:07:41

#	User	Length	Language	Date
1	Andreas Björklund	486	Python 2	2022-03-17 20:19:41

#	User	Length	Language	Date
1	Hidden user	642	Python 3	2023-03-13 08:06:25
2	Luka Avbreht	1154	Python 3	2021-01-27 14:07:22
3	ziga avbreht	1225	Python 3	2021-04-05 17:33:24
4	Duoduo Zhao	3006	Python 3	2025-08-08 02:24:24

Solution running time distribution