#include<iostream>
using namespace std;
 
struct Student {
	char name [51];
	int hwScore[6];
	int midterm;
	int exam;
};
 
void input(Student& student);
double score (Student student);
void display (Student student[], double total[]);
int minIndex (double totalScore[], int size, int startIndex);
void swap(double totalScore[], int i, int j);
void swap2(Student student[], int i, int j);
void sort (double totalScore[], int size, Student student[]);
 
int main(){
	double totalScore [100];
	char again;
	Student student[100];
	int i = 0;
 
	do 
	{
		input (student[i]);
		totalScore[i] = score(student[i]);
		cout << student[i].name << "'s final score is : ";
		cout << totalScore[i] << endl;
		cout << "Enter more students? (Y or N): ";
		cin >> again;
		cout << endl;
		i++;
		cin.ignore (1, '/n');
	}while (again == 'y' || again == 'Y');
 
	sort(totalScore[], 100, student[]);
	for (int i = 0; i < 100; i++)
		display(student, totalScore[i]);
 
 
 
 
 
 
 
	return 0;
}
 
 
void input (Student& student)
{
	cout << "Enter student name: ";
	cin.getline (student.name, 51);
	cout << endl;
 
	for (int i=0; i < 6; i++)
	{
		int hwNum = i;
		cout << "Enter hw " << hwNum + 1 << "(max 10): ";
		cin >> student.hwScore[i];
 
		while ((student.hwScore[i] > 10) || (student.hwScore[i] < 0))
		{
			cout << "Invalid input, please enter a number from 0 to 10:" << endl;
			cin >> student.hwScore[i];
		}
	}
 
	cout << "Enter midterm score(max 40): ";
	cin >> student.midterm;
	while ((student.midterm > 40) || (student.midterm < 0))
		{
			cout << "Invalid input, please enter a number from 0 to 40:" << endl;
			cin >> student.midterm;
		}
	cout << "Enter final score(max 100): ";
	cin >> student.exam;
	while ((student.exam > 100) || (student.exam < 0))
		{
			cout << "Invalid input, please enter a number from 0 to 10:" << endl;
			cin >> student.exam;
		}
}
 
double score (Student student)
{
	double totalScore = 0;
	double totalHw =0;
	for (int i=0; i < 6; i++)
		totalHw += student.hwScore[i]; 
 
	totalScore =((totalHw/60 * 30) + (student.midterm/40 * 25) + (student.exam/100 * 45));
	return totalScore;
}
 
void display (Student student[], double total[])
{
	int i;
	cout << student[i].name << endl;
	cout << total[i];
}
 
int minIndex (double totalScore[], int size, int startIndex)
{
	double min = totalScore[startIndex];
	int minInd = startIndex;
	for (int i = startIndex + 1; i < size; i++)
	{
		if (min > totalScore[i]){
			minInd = i;
			min = totalScore[i];
		}
	}
return minInd;
}
 
void swap(double totalScore[], int i, int j)
{
	double temp = totalScore[i];
	totalScore[i] = totalScore[j];
	totalScore[j] = temp;
}
 
void swap2(Student student[], int i, int j)
{
	Student temp = student[i];
	student[i] = student[j];
	student[j] = temp;
}
 
 
void sort (double totalScore[], int size, Student student[])
{	
	for (int i = 0; i < size; i++)
	{
		int minInd = minIndex (totalScore, size, i);
		swap (totalScore[i], totalScore[minInd]);
		swap2 (student[i], student[minInd]);
	}
}

	sort(totalScore[], 100, student[]);

display(student, totalScore[i]);

	int i;
	cout << student[i].name << endl;

void swap(double totalScore[], int i, int j)
void swap2(Student student[], int i, int j)
 
		swap (totalScore[i], totalScore[minInd]);
		swap2 (student[i], student[minInd]);