What is the post-order traversal of a binary tree with nodes 1, 2, and 3 where 1

What is the post-order traversal of a binary tree with nodes 1, 2, and 3 where 1 is the root, 2 is the left child, and 3 is the right child?

What is the post-order traversal of a binary tree with nodes 1, 2, and 3 where 1 is the root, 2 is the left child, and 3 is the right child?

Step 1: Identify the structure of the binary tree. The tree has a root node (1), a left child (2), and a right child (3).
Step 2: Understand post-order traversal. In post-order, we visit the left child first, then the right child, and finally the root node.
Step 3: Start with the left child. The left child is 2. Visit node 2.
Step 4: Next, visit the right child. The right child is 3. Visit node 3.
Step 5: Finally, visit the root node. The root node is 1. Visit node 1.
Step 6: Combine the visited nodes in the order they were visited: 2 (left), 3 (right), 1 (root).

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