3 ways to swap
using rand(), srand()
command line args
pass-by-ref, pass-by-value, pass-by-address-value
structs
new
delete, delete[]
fstream
const
linked list of structs
makefiles

classes:
	private
	public
	data members
	member functions
	accessors
	mutators
	constructors
	copy constructors
	destructors (not)
	overloaded operators (not assignment)
	friends
linked list class
big three