Find LCA in organization tree
Problem Description
Design and implement a solution to find the Lowest Common Ancestor (LCA) in an organizational hierarchy tree. The LCA should represent the lowest common organization (parent node) for two or more employees (N ≥ 2).
Deliverables
- LCA Functionality: Implement a function that takes an organizational tree and a list of two or more employee IDs, returning their LCA.
- Tree Representation: Clearly define and justify your chosen data structure for representing the organizational hierarchy.
- Unit Tests: Provide a set of unit tests to validate the correctness of your LCA implementation.
- Dynamic Updates: Discuss how your solution would support dynamic additions and deletions of users or groups within the hierarchy.
- Thread-Safety: Address thread-safety considerations for dynamic updates in a concurrent environment.
AI interview prep
Core dilemma
Balancing efficient algorithmic computation of LCA for multiple nodes with the complexities of maintaining a mutable, thread-safe tree data structure under dynamic updates.
3 tradeoffs and 2 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Find LCA in organization tree
Problem Description
Design and implement a solution to find the Lowest Common Ancestor (LCA) in an organizational hierarchy tree. The LCA should represent the lowest common organization (parent node) for two or more employees (N ≥ 2).
Deliverables
- LCA Functionality: Implement a function that takes an organizational tree and a list of two or more employee IDs, returning their LCA.
- Tree Representation: Clearly define and justify your chosen data structure for representing the organizational hierarchy.
- Unit Tests: Provide a set of unit tests to validate the correctness of your LCA implementation.
- Dynamic Updates: Discuss how your solution would support dynamic additions and deletions of users or groups within the hierarchy.
- Thread-Safety: Address thread-safety considerations for dynamic updates in a concurrent environment.