Introduces topological sorting
as an example of the application of the problem solving methodology and programming style presented in this text
background for the problem is given first
each step and decision is explained as the solution evolves
Emphasis is on
top-down design
data abstraction
functional modularization
intelligent choice of information to store and data structure in which to store it
11.5: Behavior for Replicated Pairs or Loops
11.6: Final Comments on Topsort