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traversal1

Language/Type: C++ binary trees tree traversals
Author: Marty Stepp (on 2016/06/16)

Write the elements of the tree below in the order they would be seen by a pre-order, in-order, and post-order traversal.

    3
   / \
  5   2
 /   / \
1   4   6
pre-order
in-order
post-order

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