What is common in three different types of traversals (inorder, preorder and…

2018

What is common in three different types of traversals (inorder, preorder and postorder)?

  1. A.

    Root is visited before right subtree

  2. B.

    Left subtree is always visited before right subtree

  3. C.

    Root is visited after left subtree

  4. D.

    All of the above

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Correct answer: B

In all three tree traversals: Preorder: Root → Left → Right

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