Round 1
Questions: Specific question not provided.
Follow-up Question
- How do you handle changes in the menu structure?
- What assumptions do you make when comparing the old and new trees?
Candidate's Approach
The candidate described a method to compare two tree structures representing menus. The approach involves:
- Defining a
Nodeclass to represent each item in the menu. - Implementing a
countChangedNodesfunction to traverse both trees and count the number of changed nodes based on value changes and active status changes. - Handling cases where the tree structures differ by counting all nodes in the new tree if the old tree is null, and vice versa.
- Using maps to facilitate comparison of child nodes and identifying additions, deletions, and intersections.
Interviewer's Feedback
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