Question: Dijkstra's Algorithm. What is a tree of shortest paths from a single source s? How can you represent such a tree? How can this representation

Dijkstra's Algorithm. What is a tree of shortest paths from a single source s? How can you represent such a tree? How can this representation be used to find a path from s to a particular node u in time O(L), where L is the number of edges on that path?

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