Find the existence of an intersection between two (singly) linked lists. Send back the node that intersects. Keep in mind that reference, not value, is used to define the intersection. This means that they are intersecting if the kth node of the first linked list is the exact same node (by reference) as the jth node of the second linked list.

efficiency ! Write a function to be included in an unsorted doubly linked list class, called deleteLast, that will delete the last node in the list. Assume that there is only pointer first (no last pointer).

Assume that the nodes of the singly linked lists are arranged in decreasing order of the exponents of the variable x in order to add the two polynomials.The objective is to create a fresh list of nodes that represents the addition of P1 and P2. This is done by adding the COEFF fields of nodes in lists P1 and P2 that have identical powers of variable x, and then making a new node in the resulting list P1 + P2. The key part of the technique is shown below.The start pointers of the singly linked lists that correspond to the polynomials P1 and P2 are P1 and P2, respectively. Two temporary pointers, PTR1 and PTR2, are created with starting values of P1 and P2, respectively. Make procedural code.

F4