LinkedList.h,hpp     :  linked list of generic objects
testList.cc          :  main function to test the list

RecursiveTree.h,hpp  :  recursive tree of associations key/content
testTree.cc          :  main function to test the tree
                        by counting the number of occurrences of
                        characters in a file
(alternative code in "altTree")

to compile:

c++ -Wall -o testList testList.cc
c++ -Wall -o testTree testTree.cc
