Lab 5. Binary Search Tree
CS203, Spring 2006



1. Complete the following methods in the BSTree class. You may add more methods if necessary.
2. (Extra credit 15pt) Modify print() and related method(s) in the BSTree class so that the output is indented according to the level of the nodes.
[Tree Figure]

For example, for a tree as shown in the figure above, using in-order traversal, the output should be

10
15
20
25
30
35

3. Turn in all the source code files through CSNS.