C++

Write a program that creates an empty vector of strings called V. Vector V grows and shrinks as the user processes commands from a data file called vectorData.txt.

Each line in the transaction file contains a command and the corresponding data. For example, you may have the following information in your file:

Insert Hello 4

Delete 5

Print

The transaction file can only include three types of commands: Insert, Delete, and Print.

Insert command inserts a string value in the vector at a specific position. So the Insert command comes with two more information, the string you need to insert and the position it should be inserted at. For example, the first line indicates that the word Hello should be inserted in V[4]. You should check if this insert is possible. It is possible if the position you are attempting to insert the element is a positive number not beyond the size of the vector.

Delete command deletes the element at the specified position. So Delete comes with one more information that indicates which element (index) should be deleted. For example, The second line means V[5] should be removed. Again this operation should only be allowed if the index is positive and not beyond the current size of the vector.

Print command prints the contents of the vector on the screen.

You may test your program with the following data file:

Delete -1

Insert Students 0

Insert Welcome 0

Insert Back 1

Insert Ready 5

Insert Get -1

Insert To 6

Insert Program 3

Insert Very 3

Insert Good 4

Delete 1

Insert Job 4

Delete 7

Insert CS211 1

Delete 6

Print

Sample Output:

Welcome CS211 Students Very Good Job

Note: Each command must be implemented in a separate function.