MediumCompleted

Binary Tree Inorder Traversal

Tree traversal with recursive and iterative approaches

B+

Overall Grade

Performance Overview

Time Taken

25 minutes

Complexity Accuracy

Good

Edge Cases Discussed

Yes

Alternative Solutions

Partial

Your Solution

function inorderTraversal(root) {
    const result = [];
    
    function traverse(node) {
        if (!node) return;
        
        traverse(node.left);
        result.push(node.val);
        traverse(node.right);
    }
    
    traverse(root);
    return result;
}

Correct recursive approach

Proper base case handling

Could discuss iterative solution

AI Feedback

Strengths

• Solid understanding of tree traversal concepts
• Clean recursive implementation
• Good explanation of the algorithm flow
• Handled null node edge cases correctly

Areas for Improvement

• Could have discussed iterative approach with stack
• Space complexity analysis could be more detailed
• Consider Morris traversal for O(1) space

Next Steps

Practice implementing iterative tree traversals using explicit stacks. This will help you understand the relationship between recursive and iterative approaches.

Detailed Performance Metrics

Problem Understanding85%

Code Quality82%

Communication78%

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