Web Reference: Jul 23, 2025 · The basic idea behind implementing an LRU (Least Recently Used) cache using a key-value pair approach is to manage element access and removal efficiently through a combination of a doubly linked list and a hash map. Sep 21, 2024 · This C program implements an LRU cache using a doubly linked list and a hash map. The hash map allows for fast access, and the doubly linked list ensures that we can efficiently remove and insert elements in O (1) time. The Least Recently Used (LRU) cache is a popular caching strategy that discards the least recently used items first to make room for new elements when the cache is full. It organizes items in the order of their use, allowing us to easily identify items that have not been used for a long time. This strategy is useful for optimizing the use of limite...
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