cc15.md

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Code challenge: 15

Challenge Title

Trees

Whiteboard Process

Approach & Efficiency

• create a tree class with 5 methods to initiate the tree, Add, Contains, inorder, preorder, postorder. where tree takes nodes and assigns the head if no head.

Solution

after defining the structure of the tree:

• add method: is an O(log n) method which takes two arguments node and value
• contains method: is an O(log n) method which takes two arguments node and value
• preorder method: is an O(log n) method which takes one argument node
• inorder method: is an O(log n) method which takes one argument node
• postorder method: is an O(log n) method which takes one argument node