To obtain a prefix expression, which of the tree traversals is used?

Related Questions

• Which of the following pair’s traversals on a binary tree can build the tree uniquely?
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• Which of the following properties are obeyed by all three tree – traversals?
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• In a binary search tree, which of the following traversals would print the numbers in the ascending order?
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• The prefix form of an infix expression (p + q) – (r * t) is?