C++ Stacks
The C++ Stack is a container adapter that gives the programmer the functionality of a stack – specifically, a FILO (first-in, last-out) data structure.
| Constructors | construct a new stack |
| empty | true if the stack has no elements |
| pop | removes the top element of a stack |
| push | adds an element to the top of the stack |
| size | returns the number of items in the stack |
| top | returns the top element of the stack |