Question
The Floyd-Warshall algorithm fails (does not work correctly) if the input graph has a negative weight cycle. (a) Draw a small graph with a negative-weight
The Floyd-Warshall algorithm fails (does not work correctly) if the input graph has a negative weight cycle.
(a) Draw a small graph with a negative-weight cycle. Demonstrate the result of running Floyd-Warshall on it (show D(k) for k = 1, . . . , n).
(b) In general, how can you use the output of the Floyd-Warshall algorithm to detect the presence of a negative-weight cycle?
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a Lets consider a small graph with a negativeweight cycle Graph G 1 1 2 4 In this graph there is a n...
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Introduction to Algorithms
Authors: Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest
3rd edition
978-0262033848
