What are some situations where you might find it useful to use the “!” symbol in a program? pleas don't take a answer from a different wed site

Me if you do then you get 10 points and brainliest

*write a program that defines symbolic names for several string literals (chars between quotes). * use each symbolic name in a variable definition. * use of symbolic to compose the assembly code instruction set can perform vara = (vara - varb) + (varc - vard); ensure that variable is in unsigned integer data type. * you should also further enhance your symbolic logic block to to perform expression by introducing addition substitution rule. vara = (vara+varb) - (varc+vard).

Which type of navigation involves multiple frames that are linked to a number of other frames? a) bread crumbs b) linear c) reciprocal d) web which type of navigation is similar to a book because users can move back and forth between frames? a) hierarchical b) linear c) reciprocal d) sequential how many items should a menu system have? a) 1-3 b) 5-8 c) 9-11 d) 13-18