Can you explain how an AVL tree works?
Sure! An AVL tree is a self-balancing binary search tree where the difference in heights between the left and right subtrees is at most one.
What happens when you insert a node that unbalances the tree?
When an insertion causes an imbalance, the tree performs rotations to restore balance. There are four types of rotations: left, right, left-right, and right-left.
Can you give me an example of how a rotation works?
Absolutely! If you insert a node into the left subtree of the right child, a left rotation on the unbalanced node will restore balance.
Are there any advantages of using AVL trees over regular binary search trees?
Yes, AVL trees provide faster lookups due to their strict balancing, which keeps the height logarithmic, improving search efficiency.
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