Completed Trees -1 assignment

[thondaha]

No description provided.

[super30admin]

Strengths:

1. The student provides two distinct approaches to solving the problem, demonstrating a good understanding of different techniques.
2. The code is well-commented, making it easy to follow the logic.
3. The inclusion of test cases in the main method is excellent for verifying correctness.
4. The use of helper methods (like n(int val)) improves readability and reduces redundancy.

Areas for Improvement:

1. The inorderHelper method could be optimized by returning early when inorderValid is false, which the student has already implemented. However, the reference solution uses a simpler approach with a single flag and prev node, which might be slightly more efficient.
2. The rangeHelper method uses Long for min and max to handle edge cases with Integer.MIN_VALUE and Integer.MAX_VALUE, which is a good practice. However, the student could mention this in comments for clarity.
3. The TreeNode class is defined in multiple files (BinarySearchTree.java and TreeNode.java), which could lead to redundancy. It would be better to have a single definition in one file and import it where needed.