As discussed in the lecture notes, stacks are a very commonly used abstract data type. applications of stacks include implementation of reverse polish notation expression evaluation and undo buffers. stacks can also be used to check whether an expression has balanced parentheses, braces, and brackets (,{,[ or not. for example, expressions with balanced parentheses are "(x + y)", "{x + (y + z)}"

In which part of a professional email should you try to be brief, but highly descriptive?

In deadlock avoidance using banker’s algorithm, what would be the consequence(s) of: (i) a process declaring its maximum need as maximum possible for each resource. in other words, if a resource a has 5 instances, then each process declares its maximum need as 5. (ii) a process declaring its minimum needs as maximum needs. for example, a process may need 2-5 instances of resource a. but it declares its maximum need as 2.

1. you have a small business that is divided into 3 departments: accounting, sales, and administration. these departments have the following number of devices (computers, printers, etc.): accounting-31, sales-28, and administration-13. using a class c private network, subnet the network so that each department will have their own subnet. you must show/explain how you arrived at your conclusion and also show the following: all available device addresses for each department, the broadcast address for each department, and the network address for each department. also, determine how many "wasted" (not usable) addresses resulted from your subnetting (enumerate them).