What is an LRU Cache?
An example of an AI chatbot conversation about LRU Cache and its functionality.
Can you explain what an LRU cache is?
An LRU cache, or Least Recently Used cache, is a data structure that stores a limited number of items and evicts the least recently used item when it reaches its capacity.
How does it decide which item to evict?
It keeps track of the order in which items are accessed. When the cache is full, it removes the item that hasn't been used for the longest time.
What are some common use cases for an LRU cache?
LRU caches are commonly used in memory management, web caching, and database query optimization to improve performance.
Can you give an example of how to implement one?
Sure! In Python, you can use the collections.OrderedDict to create an LRU cache easily.
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