analyzing data from a file in c++

I need a code in c++ (no graphical user interface needed), which could read a file with a financial data (stock prices and prices). Also, make some operations like: Display all data; Display difference between months that you select; Display the months with highest/lowest volume sales; Display day with the highest/lowest volume sales; Display the months with highest/lowest closed prices; Display day with the highest/lowest closed prices, and make sure that functions are used, like: classes, inheritances, overloading, polymorphism, proper desing of the code into seperate files, complexity of the overall project.