Problem

Run the DFS-based topological ordering algorithm on the following graph. Whenever you have...

Run the DFS-based topological ordering algorithm on the following graph. Whenever you have a choice of vertices to explore, always pick the one that is alphabetically first.

(a) Indicate the p r e and post numbers of the nodes.

(b) What are the sources and sinks of the graph?

(d) How many topological orderings does this graph have?

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Solutions For Problems in Chapter 3

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