Process Operations for an In-Memory Key-Value Store
Company: Rbcroyalbank
Role: Machine Learning Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Technical Screen
Overview: Implement a simple in-memory key-value store from a stream of SET, GET, and DELETE operations. This coding exercise checks hash-map updates, replacement and missing-key semantics, ordered query output, and expected constant-time processing at scale.