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3 cards from this section. Quick, good the night before a test.
What defines the slope of a node in a binary tree?
Think about how we measure heights of separate subtrees.
What is performed when the slope is +2?
Consider what happens based on left properties.
What happens when the slope of a node is +2?
Think about how we correct balance favoring the left subtree.
True or False: Heights must be computed recursively for every tree operation.
Remember why it's inefficient to compute heights all the time.
In a binary tree with a series of insertions leading to an imbalance, describe how you would perform successive right and left rotations.
Map out the tree after several insertions to visualize needed rotations.
Explain the consequences of failing to maintain height information in nodes after rotations.
Consider how balancing impacts retrieval performance.
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