Post-order tree traversal

1. Recursively traverse the current node’s left subtree
2. Recursively traverse the current node’s right subtree
3. Visit the current node (in the figure: position blue)

(“Tree Traversal” 2022)

Post-order traversal (blue node): A, C, E, D, B, H, I, G, F

(“Tree Traversal” 2022)

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