cf/mirror

Symmetree

CF
1800G2200· master2s256 MB⌨ stdin/stdout
#dfs and similar#hashing#implementation#trees

Examples

Sample 1of 1
Input
6
6
1 5
1 6
1 2
2 3
2 4
7
1 5
1 3
3 6
1 4
4 7
4 2
9
1 2
2 4
2 3
3 5
1 7
7 6
7 8
8 9
10
2 9
9 10
2 3
6 7
4 3
1 2
3 8
2 5
6 5
10
3 2
8 10
9 7
4 2
8 2
2 1
4 5
6 5
5 7
1
Output
YES
NO
YES
NO
NO
YES
1800G.cpp
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Ln 11·137 BGNU C++20 (64)
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