Completed Trees 2

[sanjoli97]

No description provided.

[super30admin]

Construct Binary Tree from Inorder and Postorder Traversal (ConstructBTFromInOrderPostOrderTraversal.java)

Strengths:

• The solution is clean, well-documented, and follows good coding practices
• Correctly implements the recursive approach with proper base case handling
• Good comment explaining the key insight about processing right subtree first
• Proper use of this keyword for instance variables to avoid confusion

Areas for Minor Improvement:

• The comment says "SC - O(n)" and "TC - O(n)" which is fine, but could be more descriptive
• Consider adding a null check for edge cases (though constraints guarantee valid input)
• The solution is essentially identical to the reference solution, which is excellent

**

VERDICT: PASS

---

Sum Root to Leaf Numbers (SumRootToLeaf.java)

Strengths:

• The solution is clean, concise, and easy to understand
• Good use of comments explaining both the algorithm and complexity analysis
• Correct handling of edge cases (null nodes)
• Proper use of recursion with an accumulator pattern

Areas for Improvement:

• The solution is functionally equivalent to the reference and doesn't need major changes
• Minor suggestion: Could consider making the sum variable local to the helper method or using a return value pattern for slightly better encapsulation, but the current approach is perfectly valid

The solution demonstrates a solid understanding of tree traversal and the problem requirements.

VERDICT: PASS