Practice AVL Trees as an Example - 40.2.2 | 40. Search trees - Part B | Data Structures and Algorithms in Python
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens when a leaf node is deleted from an AVL tree?

πŸ’‘ Hint: Think about what a leaf node represents.

Question 2

Easy

How do you delete a node that has only one child?

πŸ’‘ Hint: Consider what 'promoting' means in terms of tree structure.

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 step do you take if the node to be deleted is a leaf?

πŸ’‘ Hint: Consider the simplest case of deletion.

Question 2

If a node has two children, which value do we typically use to replace it?

  • Minimum from the right subtree
  • Maximum from the left subtree
  • Current node value

πŸ’‘ Hint: Think about where larger values reside.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Imagine an AVL tree with nodes 50, 30, 70, 20, 40, 60, 80. If you delete node 70, illustrate the tree sequence and describe the necessary steps.

πŸ’‘ Hint: Draw the tree and keep track of all connections.

Question 2

Consider deleting several nodes in an unbalanced AVL tree that have been inserted in sorted order. Explain the resulting changes and how they could be corrected.

πŸ’‘ Hint: Map the tree structure before and after deletions.

Challenge and get performance evaluation