Practice Deleting A Node With Two Children (40.1.3) - Search trees - Part B
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Deleting a Node with Two Children

Practice - Deleting a Node with Two Children

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What happens when you delete a leaf node?

💡 Hint: Think about its children.

Question 2 Easy

What do you do when a node has only one child?

💡 Hint: Consider how the tree will look.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What should you do if the deleted node is a leaf?

Remove it directly
Promote its child
Find a replacement

💡 Hint: Consider what it means to be a leaf.

Question 2

If a node has only one child, what can you do?

True
False

💡 Hint: Think of the tree structure!

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Suppose you have a BST, and you want to delete node 45. It has two children: 30 and 70. What are the steps you would take?

💡 Hint: Focus on maintaining structure and order.

Challenge 2 Hard

Analyze what happens if you do not maintain balance during deletion? If a BST starts as balanced, after multiple insertions and deletions, it becomes skewed?

💡 Hint: Consider the worst-case scenario when nodes are added in order.

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Reference links

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