priority N-queue implementation needed

hello ,

please tell me how to implement priority N-queue.

the problem statment is as fallows

(Q)Describe possible variations on a “priority n-queue,” where each object
in the queue is an n-tuple, with each element of the n-tuple having both
a value and a priority. Write detailed specifications for three of the non-
trivial cases (i.e., where more than 1 of the elements is considered to
determine which object will be de-queued), and write implementations
for all of them. Write a separate program which uses one or more of
these implementations.