1. ► priority_queue’s priority function cannot be changed

2. ► Stacks have LIFO ordering

3. ► STL stack uses deque to implement stack

4. ► Queue can be implemented using a list

5. ► priority_queue forms the basis of many algorithms

6. ► A queue has FIFO ordering

7. ► An element of the priority queue can be accessed only in O(n) time

8. ► Only top element can be accessed in stack

9. ► Accessing top element in stack is constant time operation

10. ► Nested function calls form a stack