What is the time complexity of hash tables?
The average time complexity for search, insert, and delete operations in a hash table is O(1). However, in the worst case, it can be O(n) if many collisions occur.
What factors affect the performance of a hash table?
Factors include the quality of the hash function, the load factor, and how collisions are handled (e.g., chaining or open addressing).
Can you explain what a hash function is?
A hash function is a function that converts an input (or 'key') into a fixed-size string of bytes, typically a hash code, which is used to index data in a hash table.
What are some common applications of hash tables?
Common applications include implementing associative arrays, database indexing, caching, and sets.
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