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Write a calculator program that is able to process an input in postfix notation and give the result. You are free to use the built in stack class or create your own ones. Your program should be able to detect the invalid postfix input and report "invalid", if the input is valid your program should output the correct result. For your convenience, you may suppose the input consists only positive integers and the operators are only +,-,*,/. But during the process, the results can be negative, for example "4 6 -" is allowed. The first line of the input contains K the number of cases, the next K lines each contains a string of postfix notation. You will be asked to read the input from "a5input.txt". The output should be either the result of a valid string or "invalid" if the string is not in postfix notation. Sample Input: 4 7 8 9 + * 4 6 - * 3 4 + 5 6 + * 3 4 5 * + 2 3 + - 5 7 * Sample Output: -238 77 23 invalid
Write a program that generates a random integer in the (inclusive) range [0-9] (i.e. the set {0,1,2,3,4,5,6,7,8,9}) and ask the user to guess what the number is .
But would not require to give for information security on those systems. Explain that environment and desribe why information security is not factor for that organization.
Describe how you would develop users for sales organization unit and how you can set up work groups in this particular situation.
True or False 1. If a computer uses hardwired control, the microprogram determines the instruction set for the machine.
Develop a small console program driven by a text menu (see the sample screenshot below):? It displays a simple menu with 4 items indicated by number 1-4.? Users will enter number 1 to 4 to run some commands.?
You are asked by your manager to deliver software to a schedule that you know can only be met by asking your project team to work unpaid overtime.
What decimal number would the IEEE 754 single precision floating point number 0xCAE80000 (this is in hex) be? Write your final answer in scientific notation as m x 10 p where p is an integer.
Research the alternatives to address the connectivity needs for Star Clothing, and make a recommendation that includes the following.
1. Define static binding and dynamic binding and give an example of each. Static binding occurs at compile time and dynamic binding occurs at run time. 2. Describe a situation when a history sensitive variable in a subprogram is useful.
Prove or disprove: the set of all regular languages is countable.
create a change - counting game that gets the user to enter the number of coins required to make exactly one dollar. the program should let the user enter the number of pennies,nickels,dimes, and quarters.
Intellectual property as well as increase its support of open-source software products like Linux be a successful growth strategy in the "brutally competitive marketplace" in which it operates? Why or why not?
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