#include <stdexcept>
#include <vector>
#include "grades.h"
#include "median.h"
#include "Student_Info.h"

using namespace std;

double fgrade(double midterm, double final, double homework){
    return 0.2 * midterm + 0.4 * final + 0.4 * homework;
}
double grade(double midterm, double final, const vector<double>& hw){
    //computers a students overall grade from mid and final exam grades and vector of homeowrk grades. doesn't copy argument because median does it for us.
    if (hw.size() == 0){
        throw domain_error("student has done no homework!");
    return fgrade(midterm, final, median(hw));
}

double grade(const Student_Info& s){
    return grade(s.midterm, s.final, s.homework);
}