#include <iostream.h>
#include <string.h>

class Student {
	    char name[10];
	    float math, comp, eng, avg;
	    static float allscore;
	    static int num;
    public:
		Student(char *sn, float m, float c, float e)  {
			strcpy(name, sn);
			math = m;
			comp = c;
			eng = e;
			avg = (m + c + e) / 3;
			allscore += avg;
			num ++;
		}
		void Show()  {
			cout << "姓名：" << name << "  平均成績：" << avg << endl;
		}
		static void AllAverage() {
			cout << "\n總平均值是：" << allscore / num << endl << endl;
		}
};

float Student::allscore = 0;
int Student::num = 0;

void main()  {
    Student stu[5] = { Student("黎  明", 78, 89, 82),
		               Student("張學友", 85, 97, 87),
					   Student("劉德華", 67, 92, 83),
					   Student("郭富成", 64, 78, 75),
					   Student("張國榮", 84, 92, 90) };
	for(int i = 0; i < 5; i ++) 
		stu[i].Show();
	Student::AllAverage();
}