cf/mirror

Simple Cycles Edges

CF
962F2400· grandmaster2s256 MB⌨ stdin/stdout
#dfs and similar#graphs#trees

Examples

Sample 1of 3
Input
3 3
1 2
2 3
3 1
Output
3
1 2 3
Sample 2of 3
Input
6 7
2 3
3 4
4 2
1 2
1 5
5 6
6 1
Output
6
1 2 3 5 6 7
Sample 3of 3
Input
5 6
1 2
2 3
2 4
4 3
2 5
5 3
Output
0
962F.cpp
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Ln 11·137 BGNU C++20 (64)
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