What is the result of a post-order traversal on the following binary tree: A, B,
Practice Questions
Q1
What is the result of a post-order traversal on the following binary tree: A, B, C, D?
A B C D
D C B A
B D C A
C B D A
Questions & Step-by-Step Solutions
What is the result of a post-order traversal on the following binary tree: A, B, C, D?
Step 1: Understand what post-order traversal means. In post-order traversal, you visit the left subtree first, then the right subtree, and finally the root node.
Step 2: Identify the structure of the binary tree with nodes A, B, C, and D. Assume a simple structure where A is the root, B is the left child of A, C is the right child of A, and D is the left child of B.
Step 3: Start the traversal from the root (A). First, go to the left child (B).
Step 4: From B, go to its left child (D). Since D has no children, visit D first.
Step 5: After visiting D, go back to B and check its right child. Since B has no right child, visit B next.
Step 6: Now go back to the root (A) and visit its right child (C). Since C has no children, visit C next.
Step 7: Finally, after visiting both children (B and C), visit the root (A).
Step 8: Compile the order of visits: D (left of B), B (after D), C (right of A), and A (root). The final order is D, C, B, A.
