EwanGilligan

Add Zykov and Christofides Algorithms for Chromatic Number

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Add Zykov and Christofides Algorithms for Chromatic Number. This builds on the previous pull request #382 to add two additional algorithms for calculating the Chromatic Number. These use the same...

This pull request implements a parallel version of the froidure-pin algorithm as a new class `FroidurePinParallel`. Currently only the construction of the object is done, the member functions are still...