cf/mirror

Rectangle Painting 2

CF
1198E2500· grandmaster1s256 MB⌨ stdin/stdout
#flows#graph matchings#graphs

Examples

Sample 1of 2
Input
10 2
4 1 5 10
1 4 10 5
Output
4
Sample 2of 2
Input
7 6
2 1 2 1
4 2 4 3
2 5 2 5
2 3 5 3
1 2 1 2
3 2 5 3
Output
3
1198E.cpp
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Ln 11·137 BGNU C++20 (64)
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