Give the diagram of the doubly linked list implementation of the polynomials in two variables. Use the nodes with the members tag, coef, expo, next. P(x, y) = 5 + 3x + 6y + 4xy + 8y3 - 3xy5 - 7x2y5 2. Draw the BST that results when these words are inserted in the order given. Long, public, int, new, class, do, namespace