Console interface menu

A faculty stores information about:

• Students: studentID, name.

• Grades: discipline, studentID, teacher, grade.

Functions

• Manage a list of students and a list of disciplines.

• Add, remove, update, list students and disciplines.

• Search for a student based on his/her ID and search for a discipline based on the title.

• Create statistics: list of students and grades at a single discipline ordered: alphabetically, by their grades, the first 20% of students according to the average grades at all the disciplines.

• Unlimited undo/redo functionality. Each step will undo/redo the previous operation that modified the data structure