Q1easy
What is the height of a Complete Binary Tree with 15 nodes? (Assume root is at height 0).
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25 Questions Total
Tree Algorithms MCQs
Topic-wise practice questions for Data Structures & Algorithms. Test your knowledge, check solutions on demand, and pace your preparation.
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Practice in Timed ModeQ2hard
How many NULL pointers are there in a Binary Tree with N nodes?
Q3easy
Which data structure is used to implement a Trie (Prefix Tree)?
Q4medium
You are inserting the following numbers into an empty BST in this order: 10, 5, 15, 7, 12. What is the Right Child of the node with value 10?
Q5hard
A BST becomes "Skewed" (like a linked list) when elements are inserted in sorted order. What is the Search Time Complexity in this worst-case skewed BST?
Q6hard
In a **Red-Black Tree**, which is true?
Q7hard
If the Pre-order traversal of a tree is ABC and the In-order is BAC, what is the Root of the tree?
Q8hard
Which binary tree traversal is also known as a Breadth-First Search (BFS)?
Q9medium
You have a Complete Binary Tree stored in an Array. If a node is at index i (1-based indexing), where is its Left Child?
Q10medium
In a **Max-Heap** (which is a special type of complete binary tree), where is the largest element always located?