LRU Cache Implementation | Codewise explanation using Queue & Map | Java Code

Published: 01 April 2020
on channel: Coding Simplified
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Source Code:https://thecodingsimplified.com/lru-c...
Solution:
We implement lru cache using queue & map
Map helps us to fetch data faster
While pushing value in cache if data is already in cache, we move it to top & update the value. If cache is full, we remove data from last
While getting the data, we move accessed data to top of queue.

Time Complexity: O(1)
Space Complexity: O(n)

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