a. Find the maximum flow f and a minimum cut. b. Draw the final residual graph...
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a. Find the maximum flow f and a minimum cut. b. Draw the final residual graph Gf (along with its edge capacities). In this residual network, mark the vertices reachable from S and the vertices from which T is reachable. c. An edge of a network is called a bottleneck edge if increasing its capacity results in an increase in the maximum flow. List all bottleneck edges in the above network. d. Give a very simple example (containing at most four vertices) of a network which has no bottleneck edges. e. Give an efficient algorithm to identify all bottleneck edges in a network. (Hint: Execute a known network flow algorithm (e.g., Ford-Fulkerson), and then examine the residual graph.) S N B 2 2. 3 D T a. Find the maximum flow f and a minimum cut. b. Draw the final residual graph Gf (along with its edge capacities). In this residual network, mark the vertices reachable from S and the vertices from which T is reachable. c. An edge of a network is called a bottleneck edge if increasing its capacity results in an increase in the maximum flow. List all bottleneck edges in the above network. d. Give a very simple example (containing at most four vertices) of a network which has no bottleneck edges. e. Give an efficient algorithm to identify all bottleneck edges in a network. (Hint: Execute a known network flow algorithm (e.g., Ford-Fulkerson), and then examine the residual graph.) S N B 2 2. 3 D T
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Related Book For
Introduction to Algorithms
ISBN: 978-0262033848
3rd edition
Authors: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest
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