Problem II Create a C++ program for a simple employee management system. The program should enable users to add new employees, update existing employee information, and display the employee directory. Each employee has a name, ID, position, and salary. The program should have the following features: A menu-based system that allows users to add new employees, update employee information, and view the employee directory. When adding a new employee, the user should input their name, ID, position, and salary. Provide options for users to update an employee's information, such as their position or salary, by entering the employee's ID. Display the employee directory with details including name, ID, position, and salary. Allow users to search for employees by name or ID. Include comments to elucidate the program's purpose, input and output specifications, and any intricate logic. Adopt self-explanatory variable names, employ appropriate white spaces, and maintain consistent indentation for improved clarity. Test your program using sample data to confirm its correct operation and capture screenshots of two different executions to showcase varied outputs. Conclude the program with an empowering message about the value of teamwork or the importance of recognizing employees to engage the user.

Barcode Validation As you are aware, barcodes encode numbers. In the Universal Product Code system, each item is assigned a globally unique number. But not every number is a valid UPC. Why? Part of the answer is the check digit. In order to catch errors, the rightmost digit is calculated from the others. If this digit does not match its expected value, you can be assured the barcode is invalid, or has been read incorrectly. To calculate the check digit, perform the following operations modulo 10: • Sum the digits in the odd positions and multiply the result by three. • Add the digits in the even positions to the result. • Subtract the result from 10 to obtain the check digit. Your Task Given a 12-digit UPC, you will need to identify whether is is valid or invalid. The code will be provided from standard input. You simply need to print "valid" or "invalid" in response. Notes The code will be provided on a line by itself, and will consist of numerals alone. You may assume that it will be…

Errors in code may manifest in a variety of ways, including syntax, logic, and during runtime.

Debugging: What is it and how does it operate?