The Full Form of LRU is Least Recently Used.
A Least Recently Used (LRU) Cache organizes items in order of use, allowing you to quickly identify which item hasn’t been used for the longest amount of time. Picture a clothes rack, where clothes are always hung up on one side. To find the least–recently used item, look at the item on the other end of the rack.
LRU
means
Least Recently Used
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