C++ Practices with a binary search tree project, a singly linked List, a doubly linked list project, and a hash table project. Binary Search Tree(BST): Tree shape and using binary search to find the appropriate place to put the newly added branch. Singly Linked List(SLL): A basic List structure operating templates. It has three main functions including add, remove, and get, which have the same functionality as the CPP imported List class. Doubly Linked List(DLL): Similar structure as the SLL, but can be searched in backward way. Then, the doubly linked list is operated to design Stack and Queue, which inherit the DLL class. Hash Table(HT): Using the Member id as the unique code to hash, which deal with a member class.