3.19. Summary¶

Linear data structures maintain their data in an ordered fashion.
Stacks are simple data structures that maintain a LIFO, last-in first-out, ordering.
The fundamental operations for a stack are push, pop, and empty.
Queues are simple data structures that maintain a FIFO, first-in first-out, ordering.
The fundamental operations for a queue are push, pop, and empty.
Prefix, infix, and postfix are all ways to write expressions.
Stacks are very useful for designing algorithms to evaluate and translate expressions.
Stacks can provide a reversal characteristic.
Queues can assist in the construction of timing simulations.
Simulations use random number generators to create a real-life situation and allow us to answer “what if” types of questions.
Deques are data structures that allow hybrid behavior like that of stacks and queues.
The fundamental operations for a deque are push_front, push_back, pop_front, pop_back, and empty.