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What is the result of a level-order traversal on the binary tree with root 1, le

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Question: What is the result of a level-order traversal on the binary tree with root 1, left child 2, and right child 3?

Options:

  1. 1, 2, 3
  2. 2, 1, 3
  3. 3, 2, 1
  4. 1, 3, 2

Correct Answer: 1, 2, 3

Solution: 

Level-order traversal visits nodes level by level, starting from the root, resulting in the order: 1, 2, 3.

What is the result of a level-order traversal on the binary tree with root 1, le

Practice Questions

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

Questions & Step-by-Step Solutions

What is the result of a level-order traversal on the binary tree with root 1, left child 2, and right child 3?
  • Step 1: Identify the root of the binary tree, which is 1.
  • Step 2: Start the level-order traversal from the root node.
  • Step 3: Visit the root node (1) and record its value.
  • Step 4: Move to the next level and visit the left child of the root, which is 2, and record its value.
  • Step 5: Next, visit the right child of the root, which is 3, and record its value.
  • Step 6: Since there are no more nodes to visit, the traversal is complete.
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