Premier Cryogenics Technical Officer Interview Questions and Answers

Hash table is commonly used data structure to create a dictionary.

• Hash table is efficient for fast lookups and insertions.

• Keys are hashed to generate an index where the value is stored.

• Examples: Python dictionaries, Java HashMap, C++ unordered_map.

Designing Uber involves creating a platform for on-demand transportation services.

• Develop a user-friendly mobile app for customers to request rides

• Implement a driver app for drivers to accept ride requests and navigate to pick-up locations

• Build a backend system to match drivers with riders based on location and availability

• Incorporate a payment system for seamless transactions

• Include features like real-time tracking, r