qt - C++ - List the NumberOfStudents taking SeveralClasses -

qt - C++ - List the NumberOfStudents taking SeveralClasses -

i wondering if can help me issue. new programming c++ teacher has given me quick question relating number of students taking several courses.

i cannot fathom how suppose list exact number of students take multiple courses. understand how list number of students, , number of courses. putting them both causing me bother.

my effort listed below, know should not using || symbol can guide me should in place.

qstring students = qstring::number(studentslist.noofstudents() || courseslist.noofcourses());

c++ qt qstring