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What is the output of the following in-order traversal on the binary tree: 1 (ro

Practice Questions

Q1
What is the output of the following in-order traversal on the binary tree: 1 (root), 2 (left child), 3 (right child)?
  1. 1, 2, 3
  2. 2, 1, 3
  3. 3, 1, 2
  4. 1, 3, 2

Questions & Step-by-Step Solutions

What is the output of the following in-order traversal on the binary tree: 1 (root), 2 (left child), 3 (right child)?
  • Step 1: Identify the structure of the binary tree. The root is 1, the left child is 2, and the right child is 3.
  • Step 2: Start the in-order traversal. First, visit the left child of the root (which is 2).
  • Step 3: After visiting the left child (2), visit the root (1).
  • Step 4: Finally, visit the right child of the root (which is 3).
  • Step 5: Combine the visited nodes in the order they were visited: 2 (left), 1 (root), 3 (right).
  • Step 6: The final output of the in-order traversal is 2, 1, 3.
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