midHash Tables
Linear Probing vs Quadratic Probing
Updated Apr 28, 2026
Short answer
Linear probing checks the next slot (+1); Quadratic probing checks slots at increasing squared intervals.
Deep explanation
Intermediate hash table mechanics focus on optimization and collision management. Linear probing checks the next slot (+1); Quadratic probing checks slots at increasing squared intervals.
Real-world example
Database indexing for unique identifiers.
Common mistakes
- Forgetting that resizing requires re-calculating the hash for every existing item.
Follow-up questions
- Why is table size usually a prime number?