What are the differences between a hash map and a list?
An example of an AI chatbot conversation about hash maps and lists in programming.
What are the differences between a hash map and a list?
A hash map is a data structure that stores key-value pairs, allowing for fast retrieval, while a list is an ordered collection of items.
When should I use a hash map instead of a list?
Use a hash map when you need fast lookups, insertions, and deletions based on keys. Lists are better for ordered data.
Can you give me an example of when to use each?
Sure! Use a hash map for a phone book (name as key, number as value) and a list for a playlist of songs.
What are the performance differences between them?
Hash maps generally offer O(1) time complexity for lookups, while lists have O(n) for searching, making hash maps faster.
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