struct Offerings
{
    string               key;
    string               activity_code;
    string               title;
    vector<session_type> sessions_offered;

    bool operator==(const Offerings& other) const;

    static string get_department_code(const string& activity_code);
};

Represents all the offerings of a course (in a given study session).

string key;

A unique key that identifies this course. When selecting courses, the keys of the courses to be selected should be passed to SelectCourses().

string activity_code;

The activity code of the course.

string title;

The course's title.

vector<session_type> sessions_offered;

The sessions (fall, spring, or full-year) in which this course is offered.

bool operator==(const Offerings& other) const;

Compare this Offerings object to another for equality. Two Offerings objects are equal if they have the same key.

static string get_department_code(const string& activity_code);

Get the department code portion of an activity code. For example, for 'CSC108H1', the department code is 'CSC'.