Introduction
This article presents a demo of an AVL Tree, which only describes inserting, removing, and searching a node. Originally, it was written with C, built by a DDK compiler, so it can be easily changed to adapt for a different driver.
Inserting a Node
There are two process to insert a node: First, the node is inserted into the tree as inserting it in a binary search tree. Second, balance the tree.
There are four rotate types to balance the tree. They are described in the following list:
- LL-rotate
- LR-rotate
- RL-rotate
- RR-rotate
Removing a Node
Removing a node is more complex than inserting one. You can find the theories about it on the Internet, so I needn’t make any extra explanation about it here.
Program Usage
- Select the AvlTree->Demo to automatically generate an AVL Tree for viewing.
- Fill the edit box on the toolbar, and then select Insert or Remove. This will insert or remove the node from the tree.
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Conclusion
By the way, please let me know if you have any questions or find bugs in the code!!