Which of the following statements about the three tree traversal schemes studied is correct?
A)Inorder traversal is used for copying file directories.
B)Postorder traversal is used for copying file directories.
C)Postorder traversal is used for removing file directories by removing subdirectories first.
D)Inorder traversal is used for evaluating arithmetic expression trees on a stack-based calculator.

Question

Quizplus · Accepted Answer

C) Postorder traversal is indeed used for removing file directories by removing subdirectories first. This ensures that a directory is deleted only after all its contents, including files and subdirectories, have been deleted, which is a necessary condition for directory removal in many file systems.

Which of the Following Statements About the Three Tree Traversal