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  1. Practice
  2. Data Structures
  3. Trees
  4. Tree: Postorder Traversal
  5. Discussions

Tree: Postorder Traversal

  • Ranker2017 + 1 comment

    is "&& root!=null" necessary in "while(!stack.isEmpty() && root!=null){" ?

    • ZeaLot4J + 0 comments

      I just assume that the parameter root can be null, maybe.