Solutions for Trees-1 problems

[neeeraj1999]

No description provided.

[super30admin]

• Strengths:

  • Clear and concise implementation of recursive solutions.
  • Proper use of bounds in BST validation to ensure correctness.
  • Efficient use of a hashmap in tree construction for O(1) lookups.
  • Good commenting and variable naming practices.
  • Correct handling of edge cases (e.g., empty nodes).

• Areas for Improvement:

  • While the solutions are correct and efficient, it would be beneficial to mention the trade-offs between different approaches (e.g., iterative vs. recursive) in the comments or documentation.
  • For the tree construction problem, consider adding a brief explanation of why the preorder array is traversed in a specific order (root, left, right).