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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 …
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 …