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What is the level-order traversal of a binary tree with root A, left child B, an

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Question: What is the level-order traversal of a binary tree with root A, left child B, and right child C?

Options:

  1. A, B, C
  2. B, A, C
  3. C, B, A
  4. A, C, B

Correct Answer: A, B, C

Solution: 

In level-order traversal, nodes are visited level by level from top to bottom, resulting in A, B, C.

What is the level-order traversal of a binary tree with root A, left child B, an

Practice Questions

Q1
What is the level-order traversal of a binary tree with root A, left child B, and right child C?
  1. A, B, C
  2. B, A, C
  3. C, B, A
  4. A, C, B

Questions & Step-by-Step Solutions

What is the level-order traversal of a binary tree with root A, left child B, and right child C?
  • Step 1: Identify the root of the binary tree, which is A.
  • Step 2: Note that A has a left child B and a right child C.
  • Step 3: In level-order traversal, we start from the root and visit all nodes at the current level before moving to the next level.
  • Step 4: Visit the root node A first.
  • Step 5: Next, visit the left child B.
  • Step 6: Finally, visit the right child C.
  • Step 7: Combine the visited nodes in the order they were visited: A, B, C.
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