Get project numbers for projects not supplied with any red part by any London supplier.
Answer to relevant QuestionsGet part numbers for parts supplied to all projects in London.Modify your algorithm from Exercise 24.3-6 to run in O ((V + E) lg W ) time. (Hint: How many distinct shortest-path estimates can there be in V - S at any point in time?)Show how to express the single-source shortest-paths problem as a product of matrices and a vector. Describe how evaluating this product corresponds to a Bellman-Ford-like algorithm (see Section 24.1).How can the output of the Floyd-War shall algorithm be used to detect the presence of a negative-weight cycle?Suppose that a flow network G = (V, E) has symmetric edges, that is, (u, v) ¬ E if and only if (v, u) ¬ E. Show that the Edmonds-Karp algorithm terminates after at most |V| |E|/4 iterations.
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