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Questions related to the (computational) complexity of solving problems

4 votes
Accepted

Minimum edge deletion partitioning

I believe this problem is NP-hard and it can be shown by a reduction from the vertex coloring problem with $k$ colors. Assume we are given a graph $G' = (E',V')$ and we want to decide whether there e …
Dennis Kraft's user avatar
4 votes
Accepted

NP-hardness of a scheduling problem

This sounds very much like a Hamilton path problem. If you set the edge weights all to $1$ and the deadline of the vertices all to $|V| - 1$, then each vertex can only be visited once, since there is …
Dennis Kraft's user avatar