aa trees
AA trees are a type of self-balancing binary search tree that maintain their balance using a specific set of rules. They are similar to red-black trees, but simpler in terms of implementation. AA trees use two main properties to ensure balance: level property and skew property. The level property ensures that the right child of a node has a lower level than the node itself, while the skew property does not allow any consecutive right children. These properties help keep the height of the tree logarithmic, resulting in efficient search, insertion, and deletion operations.
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