log Graph.py @ 27:78116556b491

age author description
Mon, 31 Dec 2012 18:58:21 -0600 Brian Neal Added exercises 1 and 2 from chapter 4.
Mon, 03 Dec 2012 19:11:17 -0600 Brian Neal Improvements to Graph's bfs.
Sun, 02 Dec 2012 21:51:51 -0600 Brian Neal Section 2.4, exercise 5, create an is_connected() method for the Graph.