Add LRUCache, along with test cases #149
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Description of new feature, or changes
Least Recently Used (LRU) cache.
This LRUCache implemented base on original data structure
Map.When trying to add a new key-value pair, if cache.size == cache.capacity, the Least Recently Used key is removed.
The size of this LRU is also a property.
Property
capacityis allowed to be reset, Least Recently Used keys will be removed when capacity is set to smaller one.Checklist
Related Issues and Discussions
implement #17
People to notify
@manrajgrover