Write C++ code for problem below . Call your class as List. Make sure your code uses templates and template parameters. Write driver (main) to test each member function of the List class at least once. Assume that a singly linked list is implemented with a header node, but no tail node, and that it maintains only a pointer to the header node. Write class that includes methods to

a. return the size of the linked list

b. print the linked list

c. test if a value x is contained in the linked list

d. add a value x if it is not already contained in the linked list

e. remove a value x if it is contained in the linked list