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CF
917D
⊞ graph
2600
· international gm
1s
256 MB
⌨ stdin/stdout
#dp
#math
#matrices
#trees
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Examples
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3
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1 3
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0 2 1
Sample 2
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4
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2 3
3 4
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1 7 7 1
Sample 3
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4
1 2
1 3
1 4
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0 9 6 1
58%
917D.cpp
GNU C++20 (64)
GNU C11
Python 3
PyPy 3
Java 21
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GNU C++20 (64)
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