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Abstract Data Structures and Algorithms · Semester 1

AVL Trees and Height-Balanced Structures

Students will learn about loops (e.g., 'repeat' or 'for' loops) to perform actions multiple times, making programs more efficient.

Key Questions

  1. Prove that maintaining the AVL balance invariant guarantees O(log n) worst-case height, and explain why an unbalanced BST can degrade to O(n).
  2. Trace the sequence of single and double rotations required to restore the AVL invariant after a sequence of insertions, showing the balance factors at each affected node.
  3. Compare AVL trees and Red-Black trees in terms of rotation frequency, worst-case height bounds, and the practical contexts in which each is preferred in systems software.

MOE Syllabus Outcomes

MOE: Programming - Middle School
Level: JC 2
Subject: Computing
Unit: Abstract Data Structures and Algorithms
Period: Semester 1

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