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Let G be a directed weighted graph, where V ( G ) = { v 1 , v 2 , , vn } . Let
Let G be a directed weighted graph, where V Gv v vn Let B be an n times n matrix such that entry bij denotes the distance in G from vi to vj using a directed path Now we are going to insert a new vertex vn into G Let wi denote the weight of the edge vi vn and w i denote the weight of the edge vn viIf there is no edge from vi to vn or from vn to vi then wi or w i is infty respectively. Describe an algorithm to construct an ntimes n distance matrix B from B and values of wi and w i for i nNote that the graph G itself is not given. Your algorithm should work in On time. Hint: all pairs shortest paths algorithm.
Let G be a directed weighted graph, where V Gv v vn Let B be an n times n matrix such that entry bij denotes the distance in G from vi to vj using a directed path Now we are going to insert a new vertex vn into G Let wi denote the weight of the edge vi vn and w i denote the weight of the edge vn viIf there is no edge from vi to vn or from vn to vi then wi or w i is infty respectively. Describe an algorithm to construct an ntimes n distance matrix B from B and values of wi and w i for i nNote that the graph G itself is not given. Your algorithm should work in On time. Hint: all pairs shortest paths algorithm.
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