Note about __slots__ added and implemented for inner Node class

Error from the example fixed!

Unbounded priority queue

Queue ADT implementation using linked list

Queue implementation - using circular array and python list

Chapter 7 - maze problem solved using Stack ADT

Maze - exercise part left

Typo in _size fiexed, and _StackNode class indented correctly

Stack ADT using python list and Linked List

Linked List implmentation for Bag ADT

O(n) for add and remove done as exercise

Insertion Sort, Selection sort python

Merge branch 'master' of github.com:gaunledream/PythonDS

Game of Life - Sparse matrix implementation

Create README.md