//      Miles Long
//      Due date: 02/13/08
//      Instructor: Dr. Wang 
//      File name: homework2.cpp
//        
//      Outputs each student's average, class average, 
//	and the average age of students.



#include <iostream>
#include <iomanip>

using namespace std;

struct Student
{	string name;
	int test1, test2, final;
	int age;
	float avg;
};

int main()
{
	// 1. decl. obj.
	Student someone;
	char dummy;
	float class_total = 0;
	int class_size = 0;
	float class_avg;
	float class_age;
	cout << fixed << showpoint << setprecision(1);

	// 2. in
	cout << "Input the name: ";
	getline(cin, someone.name);

	while(cin)
	{
		cout << "Three exam scores: ";
		cin >> someone.test1 >> someone.test2 >> someone.final;
		cout << "The age: ";
		cin >> someone.age;	
		cin.get(dummy);		// discard '\n'

		// 3. compute
		class_size ++;
		someone.avg = (someone.test1+someone.test2
			+someone.final)/4.0;	// xx.x%
		class_total += someone.avg;
		class_age += someone.age;
 		

		// 4. out
		cout << "Name: " << someone.name << endl;
		cout << "Test 1: " << someone.test1 << endl;	
		cout << "Test 2: " << someone.test2 << endl;	
		cout << "Fianl: " << someone.final << endl;	
		cout << "Age: " << someone.age << endl;
		cout << "Average: " << someone.avg << "\n" << endl; 
		
		cout << "Input the name: ";
        	getline(cin, someone.name);
	}
	class_avg = class_total / float(class_size);
	cout << "\nClass average: " << class_avg << endl; 
	class_age = class_age / float(class_size);
	cout << "\nClass age average: " << class_age << endl;

	cout << "\nDone.\n";
	return 0;
}