05-22Mergesort 
	48 "never more" -> "never move"
06-23Quicksort
	 5 "item item" -> "an item"
07-24PriorityQueues
	12 "height = 5" -> "height = 4"
	   delete "1+" in Property
13-42DirectedGraphs
        29 "q" -> "queue"
18-53SubstringSearch
	25 "last j characters" -> "last j-1 characters"
19-54RegularExpressions
        30 "toArray" -> "toCharArray"
21-64MaxFlow
        32 Def of "flow across" was wrong. Should be
             Def. The flow across an st-cut is the sum of the flows on its 
             st-crossing edges minus the sum of the flows of its ts-crossing 
             edges.    
           Fixed in current posted slides.