Interview Solution

The function of good software is to make the complex appear to be simple. Grady Booch

Least Recently Used (LRU) cache

Language Java | Level Intermediate | Category Interview Problems | July 24, 2015 4:52 pm

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Interview Problem

Least Recently Used (LRU) cache algorithm removes the least recently used items first.
This algorithm keeps track of all items insertion order to delete the least recently used items first. If any item inserts or delete, the cache items lifetime change and update the cache.
Example:-
LRU size 4.
Insert 0,1,2,3.
Insert two number 4 and 5.
The LRU data updated with 2,3,4,5


Output

   					 
size:4 Items:0 1 2 3 
size:4 Items:2 3 4 5

				    

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