Quick Summary
- Design a system to track and manage moderator rankings within communities using log inputs.
- Implement a demotion operation that shifts a moderator down by one rank by swapping adjacent positions.
- Provide methods to retrieve current rankings and validate removal privileges based on seniority order.
What This Tests
- Dynamic state synchronization and mutable data structure management
- Efficient lookup and ordering using hash maps
- Array or list manipulation for rank adjustments and boundary checks
- Constraint validation and edge case handling in design problems
Common Patterns
Hashing
Data Structure Design
Array Manipulation
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Test Cases
Input
Output
Expected