Thinking hot topic these data structures (a very difficult question will not be thinking TAT)
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2019-08-11 04:36:14
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Los weight valley P1268 tree
- I think the difficulty is to imagine that each leaf node component out of the fork
- Then, if c is a - b This points out the edge, can Dab, Dca, Dcb and calculates a branch point where a specific length of a side, then this can be verified right violence.
- Although the above data, solving the problem is also the star, but there are more subtle ways:
Origin www.cnblogs.com/jiecaoer/p/11332827.html