Question: Consider the following divide - and - conquer approach to minimum spanning trees: Given a graph G = ( V , E ) , divide

Consider the following divide-and-conquer approach to minimum spanning trees: Given a graph G =(V,E), divide the set V into V1 and V2 such that the size of V1 and V2 differ by at most one. Let E1 be the set of edges only incident on V1, and E2 be the set of edges only incident on V2. Then, recursively solve the minimum spanning tree problem on (V1,E1) and (V2,E2). Finally, select the lightest edge in E crossing the cut (V1,V2). The result is the minimum spanning tree. Prove or disprove that this correctly finds the minimum spanning tree of G.

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