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Question 4.
Given the following directed graph:
B
F
E
Perform a Depth-First Search (DFS) on the given graph, using vertex G as the source.
(a) Suppose that neighbors of a vertex is accessed in alphabetical order. List the vertices in the discovered
order of DFS and show for each vertex v, its discovery time d[v] and finish time f[v].
(b) Draw the depth-first tree obtained.

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