1
\
2
\
3
\
4
Expected In-Order Traversal Output: 1 2 3 4
Tree with Only Leaf Nodes on Left Subtree:
Input Tree:
1
/ \
2 3
/
4
Expected In-Order Traversal Output: 4 2 1 3
Tree with Multiple Levels and Mixed Branching:
Input Tree:
1
/ \
2 3
/ \ \
4 5 6
\
7
Expected In-Order Traversal Output: 4 2 5 7 1 3 6
Validation Steps
Memory Efficiency Check: Ensure that the Morris traversal function is not allocating additional memory (stacks or recursion frames) and maintains constant space usage, as it modifies the tree structure for in-order traversal.
Edge Case Handling:
Empty Tree: Input -1 as the first data point to create an empty tree and confirm that Morris traversal handles it gracefully.
Single Node Tree: Input only one node, ensuring the traversal output is the value of that single node.
Output Verification: Compare the Morris traversal output to expected in-order traversal results for each case to confirm accuracy.
Notes: Please verify the in-order traversal output matches expected values for different binary tree structures.
Description of Change
Key Changes: Morris traversal function for in-order traversal Edge case handling for empty trees and single-node trees
Testing: Included tests:
Simple binary trees Skewed trees (left and right) Complex trees with varying node configurations
Sample Test Cases Basic Tree with Depth 2:
Input Tree:
/ \ 2 3
Expected In-Order Traversal Output: 2 1 3 Complete Tree with Depth 3:
Input Tree:
2 3 / \ / \ 4 5 6 7
Expected In-Order Traversal Output: 4 2 5 1 6 3 7 Left-Skewed Tree:
Input Tree:
/ 2 / 3 / 4
4 3 2 1Right-Skewed Tree:
Input Tree:
1 \ 2 \ 3 \ 4 Expected In-Order Traversal Output: 1 2 3 4 Tree with Only Leaf Nodes on Left Subtree:
Input Tree:
2 3 / 4 Expected In-Order Traversal Output: 4 2 1 3 Tree with Multiple Levels and Mixed Branching:
Input Tree:
Expected In-Order Traversal Output: 4 2 5 7 1 3 6
Validation Steps
Memory Efficiency Check: Ensure that the Morris traversal function is not allocating additional memory (stacks or recursion frames) and maintains constant space usage, as it modifies the tree structure for in-order traversal.
Edge Case Handling:
Empty Tree: Input -1 as the first data point to create an empty tree and confirm that Morris traversal handles it gracefully.
Single Node Tree: Input only one node, ensuring the traversal output is the value of that single node.
Output Verification: Compare the Morris traversal output to expected in-order traversal results for each case to confirm accuracy. Notes: Please verify the in-order traversal output matches expected values for different binary tree structures.
Checklist
Notes: