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Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
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.
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 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.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation