| Given a graph G = (V, E), a vertex cover in G is a subset...
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| Given a graph G = (V, E), a vertex cover in G is a subset V'≤V such that for all (u,w) € E, u € V' or w € whin V'. 1 3 Figure 1 5 Figure 1 shows an undirected graph including 6 nodes. Answer the questions below: 1. Does Figure 1 have a vertex cover including four nodes? If so, given an example of 4-node vertex cover? 2. Does Figure 1 have a vertex cover including three nodes? If so, given an example of 3-node vertex cover? 3. What is the minimum vertex cover (including least nodes) in Figure 1? 4. Let VC = {<<G, k> | G has a VC of size <k}. Is this problem a NP problem? Prove your conclusion. 5. Is VC a NP-complete problem? Why? | Given a graph G = (V, E), a vertex cover in G is a subset V'≤V such that for all (u,w) € E, u € V' or w € whin V'. 1 3 Figure 1 5 Figure 1 shows an undirected graph including 6 nodes. Answer the questions below: 1. Does Figure 1 have a vertex cover including four nodes? If so, given an example of 4-node vertex cover? 2. Does Figure 1 have a vertex cover including three nodes? If so, given an example of 3-node vertex cover? 3. What is the minimum vertex cover (including least nodes) in Figure 1? 4. Let VC = {<<G, k> | G has a VC of size <k}. Is this problem a NP problem? Prove your conclusion. 5. Is VC a NP-complete problem? Why?
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Data Structures and Algorithm Analysis in Java
ISBN: 978-0132576277
3rd edition
Authors: Mark A. Weiss
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