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How do you find the height of a binary tree?

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Question: How do you find the height of a binary tree?

Options:

  1. Count the number of nodes
  2. Count the number of edges
  3. Use level order traversal
  4. Use in-order traversal

Correct Answer: Count the number of edges

Solution: 

The height of a binary tree is defined as the number of edges on the longest path from the root to a leaf node.

How do you find the height of a binary tree?

Practice Questions

Q1
How do you find the height of a binary tree?
  1. Count the number of nodes
  2. Count the number of edges
  3. Use level order traversal
  4. Use in-order traversal

Questions & Step-by-Step Solutions

How do you find the height of a binary tree?
  • Step 1: Start at the root of the binary tree.
  • Step 2: If the root is null (no tree), the height is -1.
  • Step 3: If the root is not null, check the left child and the right child.
  • Step 4: Recursively find the height of the left subtree.
  • Step 5: Recursively find the height of the right subtree.
  • Step 6: The height of the current node is 1 plus the maximum height of the left and right subtrees.
  • Step 7: Return the height of the tree.
  • Height of a Binary Tree – The height is determined by counting the number of edges from the root node to the furthest leaf node.
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