What is the result of a postorder traversal on a binary tree?

What is the result of a postorder traversal on a binary tree?

Step 1: Start at the root of the binary tree.
Step 2: Move to the left child of the root.
Step 3: If the left child has its own children, repeat Step 2 for the left child.
Step 4: Once you reach a node with no left child, visit that node (this is the first node you process).
Step 5: Go back to the parent node and now move to the right child.
Step 6: If the right child has its own children, repeat Step 5 for the right child.
Step 7: Once you reach a node with no right child, visit that node.
Step 8: After visiting the left and right children, visit the parent node (this is the last node you process).
Step 9: Repeat Steps 2-8 for all nodes in the tree until all nodes are visited.

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