Amatched string is a sequence of {, }, (, ), [, and] characters that are properly matched. for example, "{{()[]}} is a matched string, but this "{{()]}" is not, since the second is matched with a]. show how to use a stack so that, given a string of length n, you can determine if it is a matched string in o(n) time. your answer should consist in a commented pseudocode or java code.

Which of the following “invisible” marks represents an inserted tab?

The salespeople at hyperactive media sales all use laptop computers so they can take data with them on the road. you are a salesperson for superduper lightspeed computers talking to hyperactive media sales about upgrading the laptops to windows 10. explain how network location awareness in windows 10 would make the laptops more secure.

Select the correct answer. sean is a computer programmer. he has programmed an application for toddlers that plays nursery rhymes. however, a logic error has occurred in the program. which problem is a likely consequence of the error? a. the program crashes every time the user wants to play the nursery rhymes. b. the program crosses its buffer boundaries and overwrites an adjacent program. c. the program plays a different nursery rhyme than the one the user intended to play. d. the program shows different structures in its programming language code. e. the program introduces new viruses every time the user plays a nursery rhyme.