Practice Handling Nodes with Height -2 - 18.4 | 18. AVL Tree Rotations | Design & Analysis of Algorithms - Vol 2
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does it mean for a node to have a height of -2?

💡 Hint: Think about the height difference.

Question 2

Easy

Name one operation you can perform to fix a height -2 situation.

💡 Hint: What structural change helps to balance the tree?

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What indicates a height of -2 in an AVL Tree?

  • The left subtree is taller
  • The right subtree is taller
  • Both subtrees are equal

💡 Hint: Visualize the balance of the tree.

Question 2

A left rotation is required if the left child slope is what?

  • True
  • False

💡 Hint: Revisit how rotations work with slopes.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given an AVL tree structure that becomes imbalanced after multiple insertions, outline the step-by-step process required to identify, rotate, and update heights for all affected nodes.

💡 Hint: Start tracing from the root of the tree down to all modified paths.

Question 2

Explain two cases when the height of -2 occurs and detail how you would correct each scenario with rotations.

💡 Hint: Think about which subtree's balance is being affected before you apply operations.

Challenge and get performance evaluation