#include <iostream>
#include <iomanip>
using namespace std;
 
char getLetterGrade(float grade);
 
struct course
{
	char name[30];
	char *letterG;
	int *IDnum;
	int numtests;
	int numstudents;
	float *total;
	float *tests;
	float *average;
	float grade;
};
 
int main()
{
 
	course student;
	cout<< "Number of Test Scores for each student: ";
	cin >> student.numtests;
	cout<< "Number of Students: ";
	cin>> student.numstudents;
	student.tests= new float[student.numtests]; // allocate memory
	student.IDnum= new int[student.numtests];
	student.total= new float[student.numtests];
	student.average= new float[student.numtests];
	student.letterG= new char[student.numtests];
 
 
 
	//get the ID number & test scores
	for (int count=0; count< student.numtests; count++)
	{
		cout<< "Enter the student's ID number. \n";
		cout<< "Student #" << (count+1)<< ": ";
		cin>> student.IDnum[count];
		cout<< "Enter the student's name. \n";
		cout<< "Student #" << (count +1)<< ": ";
//this is the part where user should enter the student name	
                         cin.getline(student.name[count],30);
		cout<< "Enter the test scores below.\n";
		cout<< "Test #" << (count +1) << ": ";
		cin>> student.tests[count];
		student.total[count] += student.tests[count];
		student.average[count] = student.total[count]/ student.numtests;	
 
		cout<< "Name: \t\t ID Number: \t Average Test Score:    Grade: \n";
		cout<< "---------------------------------------------------------";
		cout<< student.name[count] << "   ";
		cout<< student.IDnum[count] << "   ";
		cout<< student.average[count] << "   ";
		student.letterG[count] = getLetterGrade(student.average[count]);
		cout<< student.letterG[count] << endl;
	}
 
 
	//Free dynamically allocated memory
	delete [] student.tests;
	return 0;
 
}
 
char getLetterGrade(float grade) 
{
 
	if ( grade >= (float) 90 ) return 'A';
	else if (grade >= (float) 80) return 'B';
	else if (grade >= (float) 70) return 'C';
	else if (grade >= (float) 60) return 'D';
	else return 'F';
 
}