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Vertex Cover

Reminder: Graph G = (V,E)
  • set of vertices V
  • set of edges E
Vertex cover C of G
  • C ⊆ V
  • for all edges (u,v) ∈ E either v ∈ C or u ∈ C (or both)
⇒ All edges of the graph are "covered" by vertices in C