Which of the following statements about AVL trees is true?a)AVL trees ...
AVL trees are a type of balanced binary search tree that ensures the height of the tree remains logarithmic.
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Which of the following statements about AVL trees is true?a)AVL trees ...
AVL trees:
AVL trees are a type of balanced binary search tree that ensures the height of the tree remains balanced. AVL trees were named after their inventors, Adelson-Velsky and Landis.
Statement analysis:
Let's analyze each statement to determine which one is true:
a) AVL trees are a type of balanced binary search tree:
This statement is true. AVL trees are a self-balancing binary search tree, meaning that the heights of the left and right subtrees of every node differ by at most 1. This balance property is maintained during insertion and deletion operations.
b) AVL trees have an unbounded height:
This statement is false. AVL trees have a bounded height due to their self-balancing nature. The height of an AVL tree is guaranteed to be O(log n), where n is the number of nodes in the tree. This ensures efficient search, insertion, and deletion operations.
c) AVL trees guarantee O(1) search time in the worst case:
This statement is false. The search time in an AVL tree is not guaranteed to be O(1) in the worst case. While the height of the tree is balanced, the search time is still dependent on the height of the tree, which is O(log n) in the worst case.
d) AVL trees only support insertion and deletion at the root:
This statement is false. AVL trees support insertion and deletion operations at any node, not just the root. When a node is inserted or deleted, the tree automatically adjusts its structure to maintain balance.
Conclusion:
Based on the analysis, the correct statement is a) AVL trees are a type of balanced binary search tree. AVL trees are a self-balancing binary search tree that ensures the heights of the left and right subtrees differ by at most 1, making them an efficient data structure for searching, insertion, and deletion operations.