solve this assignment with tree files (two cpp and one header)

A student has a name and he/she is in a year of study (level). Each year the student takes a number of courses and score marks for those courses and ends with a GPA for that year. The CGPA for courses of all years is calculated too. The weight of a mark between 0 and 60 is 0 , the weight of a mark between 60 and 70 is 1 , the weight of a mark between 70 and 80 is 2, the weight of a mark between 80 and 90 is 3 , and the weight of a mark between 90 and 100 is 4 . Assuming that w stands for the weight of the mark and c stands for the course credit's then the GPA is calculated using the following formula: GPA=ciwici Define a struct called Year with components numberOf Courses, an array marks[ ], an array credits[] all of type int, and GPA of type float. Define a class called Student with private data members name of type string, level of type int, CGPA of type float, an array studyYear [] of type Year. The class also has the private member functions calculate GPA (int), and calculateCGPAO. The class has the public member functions set(int), get GPA (int), getCGPAO, print (, a default constructor and constructor with parameters