What is a hash function collision in C++?
An example of an AI chatbot conversation about hash function collisions in C++ programming.
What is a hash function collision in C++?
A hash function collision occurs when two different inputs produce the same hash output. In C++, this can lead to issues in data structures like hash tables.
Can you give me an example of a hash function collision?
Sure! For instance, if you have a simple hash function that sums the ASCII values of characters, both "abc" and "cab" could produce the same hash value.
How can I avoid hash function collisions in my C++ program?
To minimize collisions, use a more complex hash function, increase the size of the hash table, or implement collision resolution techniques like chaining or open addressing.
What are some common hash functions used in C++?
Common hash functions in C++ include std::hash, MurmurHash, and SHA-256, each with different performance and collision resistance characteristics.
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