help , with c++

Three salesmen work for a pharmaceutical company. Each salesman has an ID, salary and phone number as shown in the example below. Declare the arrays necessary to enter the information of 20 salesmen, and initialize them with the information of the three salesmen above. (i.e. the first three cells of each array are initialized as shown in the table above). Then, the program must display the following list of tasks: 1. Add a salesman 2. Delete a salesman 3. Search for a salesman by his ID 4. Exit The user chooses a task by entering the task number (1, 2, 3 or 4). Write the 3 functions necessary to perform the previous tasks (add, delete and search), then call these functions to perform the tasks chosen by the user. The program must keep on displaying the previous list of tasks and performing the required task until the user enters 4 . (Hint: the main loop is ended when 4 is entered). If the number of salesmen entered by the user exceeds 20 (which is bigger than array size), the program should display the following message on screen: Sorry, the company has enough salesmen at the current time, if you want to add a new salesman, you should delete one first. Notes and hints: - All the steps from 1 to 3 must be done using functions ONLY. - Use the concept of parallel arrays - When you delete a salesman, you have to shift the information of the following ones in each of the arrays. - When you add a salesman, add it at the end of the array (if the number of salesmen in the array is under 20 )