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

Question

Quizplus · Accepted Answer

Postorder traversal is used for evaluating arithmetic expression trees on a stack-based calculator because it processes the operators after their operands, which aligns with the way stack-based calculators evaluate expressions.

Which of the Following Statements About the Three Tree Traversal