What is the result of a post-order traversal on a binary tree with nodes 1 (root

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Question: What is the result of a post-order traversal on a binary tree with nodes 1 (root), 2 (left), 3 (right)?

Options:

Correct Answer: 2, 3, 1

Solution:

Post-order traversal visits the left child, then the right child, and finally the root, resulting in the output 2, 3, 1.

What is the result of a post-order traversal on a binary tree with nodes 1 (root), 2 (left), 3 (right)?

What is the result of a post-order traversal on a binary tree with nodes 1 (root), 2 (left), 3 (right)?

Step 1: Identify the structure of the binary tree. The root node is 1, the left child is 2, and the right child is 3.
Step 2: Start the post-order traversal. In post-order, we first visit the left child.
Step 3: Visit the left child (node 2). Since node 2 has no children, we record 2.
Step 4: Next, we visit the right child (node 3). Since node 3 has no children, we record 3.
Step 5: Finally, we visit the root node (node 1) and record 1.
Step 6: Combine the recorded values in the order they were visited: 2, 3, 1.

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