Problem

a. Give an example where Dijkstra’s algorithm gives the wrong answer in the presence of a...

a. Give an example where Dijkstra’s algorithm gives the wrong answer in the presence of a negative edge but no negative-cost cycle.

b. Show that the weighted shortest-path algorithm suggested in Section 9.3.3 works if there are negative-weight edges, but no negative-cost cycles, and that the running time of this algorithm is O(|E| • |V|).

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