8. Following is the node class: class node { int v node *next: public: node(int x) {v=X; next=0;} friend class list: }; Implement the sequential list class below: class list { // circular list class // head position node *head; public: bool empty() { return !head;} list() {head=0;} -list(); void add(int x); int get(); /l empty list judgment // constructor /l destructor, to be implemented // add to tail, to be implemented // get from head, to be implemented }:

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