Input Data file

Below are the needed requirements for the Input data file in order for the code to run effectively.

1. The Input data file must be a .txt file.

2. The Input data file should be placed in the same folder where the executable file gets created (bin folder in this project).

3. The contents of the Input Data file should satisfy the below requirements,

• The file can contain any number of expressions.
• Each expression should be present in separate lines(one below the other).
• Each expression should have at least 2 operands with 1 operator.
• After the last expression, an additional line stating "quit" should be added.