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Answer the following questions from the binary tree.

Write the postorder traversal of the above tree structure.

Computer Science20171 markBinary tree

Answer

Answer

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W F Y N R Z D G M Postorder (left, right, root): left subtree of M is N with W, then Y (with its left child F): W F Y N; right subtree G with Z (right child R), then D: R Z D G; then the root M.
Data structures

From ISC 2017 Computer Science Paper 1, question 12(b)(i).