What is the time complexity of hash tables in C++?
An example of an AI chatbot conversation about hash table complexity in C++.
What is the time complexity of hash tables in C++?
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 elements hash to the same index.
What factors affect the performance of a hash table?
Factors include the quality of the hash function, load factor, and how collisions are handled (e.g., chaining or open addressing).
Can you explain how collisions are resolved in hash tables?
Collisions can be resolved using methods like chaining, where each bucket points to a list of entries, or open addressing, where we find the next available slot.
What is a good hash function for C++?
A good hash function should distribute keys uniformly across the hash table. Common choices include using prime numbers and bit manipulation.
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