graph
- Adding author's Map.py as ch3ex4.py to represent the original version before2012-12-10, by Brian Neal
- Added the bisection() function for Ch 3.3 exercise 3.2012-12-10, by Brian Neal
- Chapter 2.7, exercise 7; a generator to create identifiers.2012-12-03, by Brian Neal
- Added a program that does 2.3 exercise 6 (Paul Erdos).2012-12-03, by Brian Neal
- Improvements to Graph's bfs.2012-12-03, by Brian Neal
- Section 2.4, exercise 5, create an is_connected() method for the Graph.2012-12-02, by Brian Neal
- Update for section 2.2, exercise 4, random graphs.2012-12-01, by Brian Neal
