Graph Traversal

Simulating Graph Algorithms

7.1. For the following graphs [math]\displaystyle{ G_1 }[/math] (left) and [math]\displaystyle{ G_2 }[/math] (right):

(see book for figures)

(a)Report the order of the vertices encountered on a breadth-first search starting from vertex [math]\displaystyle{ A }[/math]. Break all ties by picking the vertices in alphabetical order (i.e., [math]\displaystyle{ A }[/math] before [math]\displaystyle{ Z }[/math]).

(b)Report the order of the vertices encountered on a depth-first search starting from vertex [math]\displaystyle{ A }[/math]. Break all ties by picking the vertices in alphabetical order (i.e., [math]\displaystyle{ A }[/math] before [math]\displaystyle{ Z }[/math]).

Solution

7.2. Do a topological sort of the following graph [math]\displaystyle{ G }[/math]:

(see book for figure)