The k-SPANNING
TREE
problem is the following.
Input: An undirected graph G = (V, E)
Output: A spanning tree of G in which each node has degree ≤ k, if such
a tree exists.
Show that for any k ≥ 2:
(a) k-SPANNING TREE
is a search problem.
(b) k-SPANNING TREE
is NP-complete. (Hint: Start with k = 2 and consider the relation between this problem and RUDRATA PATH
.)
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