#include<iostream>
using namespace std;
class Variable
{
friend class Student;
private:
string name;
double score;
};
class Student
{
public:
Student(string name,double score);
static double Getaverage();
static int Number();
private:
static double total;
static int count;
};
double Student::total=0.0f;
int Student::count=0;
Student::Student(string name,double score)
:name(name),score(score)
{
count++;
total+=score;
}
double Student::Getaverage()
{
return total/count;
}
