Tree traversals, Data Structure & Algorithms

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There are three kinds of tree traversals, namely, Postorder , Preorder and Inorder.

Preorder traversal: Each of nodes is visited before its children are visited; first the root is visited.

Algorithm for pre order traversal is following:

  1. visit root node
  2. traverse left sub-tree in preorder
  3. traverse right sub-tree in preorder

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