Recall & Review
beginner
What is the Right Side View of a binary tree?
It is the list of nodes visible when the tree is seen from the right side. Only the rightmost node at each level is included.
Click to reveal answer
beginner
Which traversal method is commonly used to get the right side view of a binary tree?
Level order traversal (Breadth-First Search) is used, capturing the last node at each level.
Click to reveal answer
beginner
In the right side view algorithm, why do we record the last node at each level?
Because the last node at each level is the rightmost node visible from the right side.
Click to reveal answer
beginner
What data structure helps to perform level order traversal efficiently?
A queue is used to keep track of nodes at each level during traversal.
Click to reveal answer
beginner
How does the algorithm handle an empty binary tree for right side view?
It returns an empty list because there are no nodes to view.
Click to reveal answer
What does the right side view of a binary tree represent?
✗ Incorrect
The right side view shows nodes visible from the right side, which are the rightmost nodes at each level.
Which traversal technique is best suited to find the right side view?
✗ Incorrect
Level order traversal visits nodes level by level, making it easy to pick the rightmost node at each level.
What data structure is typically used to implement level order traversal?
✗ Incorrect
A queue allows nodes to be processed in the order they appear at each level.
If a binary tree has only one node, what is the right side view?
✗ Incorrect
With one node, the right side view is just that root node.
What is the output of the right side view for an empty binary tree?
✗ Incorrect
An empty tree has no nodes, so the right side view is an empty list.
Explain how to find the right side view of a binary tree using level order traversal.
Think about visiting nodes level-wise and picking the rightmost node.
You got /4 concepts.
Describe the role of a queue in the right side view algorithm of a binary tree.
Consider how nodes are visited one level at a time.
You got /4 concepts.