A C++ implement of LFU cache with time complexity of o(1)

Name		Name	Last commit message	Last commit date
Latest commit History 4 Commits
CMakeLists.txt		CMakeLists.txt
DoubleLinkedList.cpp		DoubleLinkedList.cpp
DoubleLinkedList.h		DoubleLinkedList.h
FreqNode.cpp		FreqNode.cpp
FreqNode.h		FreqNode.h
ItemNode.cpp		ItemNode.cpp
ItemNode.h		ItemNode.h
LFUCache.cpp		LFUCache.cpp
LFUCache.h		LFUCache.h
Main.cpp		Main.cpp
Node.cpp		Node.cpp
Node.h		Node.h
README.md		README.md

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