Help with this question in c++. not sure what additional info needs to be provided

Question In the eample of linked lists we did in dass our C+ + oode oould only add nodes to the front and hack of the array. Implement the fol kowing new dass definitian: class stringsode public string alen StringNode next friand class StringlinkedList: 2: class Stringlinkedlist pablic stringLinkadlistO StringlinkedListO bool isEmpty const; const string& front O const; void addFront (const string& a; void renovaFrontO void addBack (const string& s) void renoveBack O: friend ostrean& operatorccCostrean& out, const Stringlinkedist& obj privata StringNode" head