Introduction
Prerequeisites: Sets, Binary Search Tree
A tree set is a set which stores the values in a binary search tree. To store elements in a tree set, they must be able to be sorted by a property. To insert an element, it is added to the binary tree. To delete an element, it is removed from the binary tree. To check for membership, we do a binary search for the element in the binary tree.
The advantage of tree sets is that they are maintained in a sorted order.
Tree Sets are implemented using binary search trees.
Implementations
| Operation | Membership | Insertion | Deletion |
|---|---|---|---|
| Binary Search Tree | O(log n) | O(log n) | O(log n) |
Exercises
- Given a list of names, output all the unique names in alphabetical order.