Practice Deleting A Leaf Node (40.1.1) - Search trees - Part B - Data Structures and Algorithms in Python
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Deleting a Leaf Node

Practice - Deleting a Leaf Node

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a leaf node?

💡 Hint: Think about the definition given for a leaf node.

Question 2 Easy

What happens to a leaf node when deleted?

💡 Hint: Consider the characteristic of leaf nodes.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the first action taken when deleting a node?

Search for the node
Directly remove it
Promote a child

💡 Hint: Think about how we navigate the tree.

Question 2

True or False: A leaf node has at least one child.

True
False

💡 Hint: Recall the definition of leaf nodes.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given the following binary search tree, delete the node with value 15, which has two children. Show the resulting tree structure.

💡 Hint: Think about how to find the maximum value in the left subtree.

Challenge 2 Hard

Explain why maintaining a balanced tree is important during deletions, especially when nodes have two children.

💡 Hint: Consider the worst-case scenarios for an unbalanced tree.

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Reference links

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