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CSC 201 — Data Structures

18 study materials

Study Pack Ready
Week 5 Slides.pdfLecture 12.m4aNotes photoAVL Trees
Smart Summary
Flashcards
Practice Questions
Exam Tips
Ask Bliss AI

Explain Binary Trees simply.

Think of a family tree that only ever has two children. Each node points left (smaller) and right (larger) — that ordering is why searching feels like flipping to the middle of a dictionary.

From: Week 5 Slides.pdf · Lecture 12 recording

Works with

PDFPowerPointWordYouTubeLecture RecordingsPast QuestionsPhotosScreenshots

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CSC 201 — Week 5 Study Pack

Generated from 6 materials · 2 min ago

SummaryFlashcardsPractice QuestionsKey ConceptsExam Tips

Smart Summary

Week 5 moves from linear structures to hierarchical ones. A binary tree stores ordered data so that search, insert and delete average O(log n)—but only while the tree stays balanced. AVL rotations exist to protect that balance.

Key Concepts

Binary Search TreeTree TraversalBalance FactorAVL RotationTime Complexity

Practice Questions

  1. 1.Insert 40 into the tree below and state the resulting balance factor.
  2. 2.Compare in-order and level-order traversal outputs. Why do they differ?
  3. 3.When does a BST degrade to O(n)? Give one real example.

Flashcard 3 of 24

What keeps an AVL tree balanced?

Tap to reveal · Rotations triggered when the balance factor exceeds ±1.

Exam Tips

  • Rotations appeared in 4 of the last 5 past papers.
  • Always show traversal working—method carries the marks.
  • Learn complexity tables cold. They're free marks.

Ask Bliss AI

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Draft my assignment.Create presentation slides.Explain this topic.Generate practice questions.

Draft my assignment on tree balancing.

Here's a first draft built from your Week 5 slides and Dr. Mensah's marking guide:

Balancing Acts: Why AVL Trees Matter

  1. 1. Introduction — the cost of an unbalanced tree
  2. 2. Rotations explained with a worked example
  3. 3. Complexity analysis and trade-offs
  4. 4. Conclusion — where balancing shows up in real systems

Want me to expand section 2, or turn this into presentation slides?

Ask Bliss AI about CSC 201...

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