If a binary tree has n nodes, what is the maximum number of leaf nodes it can ha

Practice Questions

Q1
If a binary tree has n nodes, what is the maximum number of leaf nodes it can have?
  1. n
  2. n/2
  3. n/3
  4. n/2 + 1

Questions & Step-by-Step Solutions

If a binary tree has n nodes, what is the maximum number of leaf nodes it can have?
  • Step 1: Understand what a binary tree is. A binary tree is a tree data structure where each node has at most two children.
  • Step 2: Define what a leaf node is. A leaf node is a node that does not have any children.
  • Step 3: Consider the structure of a binary tree. In a binary tree with n nodes, we want to find out how many of those nodes can be leaf nodes.
  • Step 4: Think about the simplest case. If every node in the tree is a leaf node, then all n nodes are leaves.
  • Step 5: Visualize a degenerate tree. A degenerate tree is a tree where each parent node has only one child, making it look like a linked list.
  • Step 6: In a degenerate tree with n nodes, the last node will be a leaf node, and if we have n nodes, we can have n leaf nodes if structured correctly.
  • Step 7: Conclude that the maximum number of leaf nodes in a binary tree with n nodes can be n.
  • Binary Tree Structure – Understanding the properties of binary trees, including the definitions of leaf nodes and degenerate trees.
  • Leaf Nodes – Recognizing that leaf nodes are nodes with no children and determining their maximum count in a binary tree.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely