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traversal2

Language/Type: C++ binary trees tree traversals

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

      19
     /  \
   47    63
  /  \     \
23    -2    94
     /        \
   55          28
pre-order
in-order
post-order

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