//	For Assignment 4 
//	Add the selection sort
//	p.137
//	ADT - List: array of items with var. length
//	read strings from a file and put them in the list; then output the strings
//

#include <iostream>
using namespace std;

const int MAX = 50;

class List
{
	int data[MAX];
	int length;
public:
	List() { length = 0;   }
	int Length() const
	{	return length;	}
	void Insert(int item)
	{	data[length] = item;
		length ++;
	}
	void Print() const
	{	for(int i=0; i<length; i++)
			cout << data[i] << " ";
		cout << "\n";
	}
	// sequential search, p.139
	bool IsPresent(int item) const
	{	bool found = false;
		for(int i=0; i<length && !found; i++)
			if(data[i] == item) found = true;
		return found;
	}
	void SelectionSort()	// p.140 - decending oder
	{	int temp;
		int passCount;
		int maxIndex;
		for(passCount=0; passCount<length-1; passCount++)
		{	maxIndex = passCount;
			for(int k=passCount+1; k<length; k++)
			{	if( data[maxIndex] > data[k] )	maxIndex = k;	}
			temp = data[maxIndex];	// swap
			data[maxIndex] = data[passCount];
			data[passCount] = temp;
		}
	}
	void SelectionSort_R()	// descending
	{ 	int temp;
                int passCount;
                int minIndex;
                for(passCount=0; passCount<length-1; passCount++)
                {       minIndex = passCount;
                        for(int k=passCount+1; k<length; k++)
                        {       if( data[minIndex] < data[k] )  minIndex = k;   }
                        temp = data[minIndex];  // swap
                        data[minIndex] = data[passCount];
                        data[passCount] = temp;
                }
        }
};

int main()
{
	List real;
	char op;
	int item;

	cout << "	List Operations\n";
	cout << " ===========================\n";
	cout << "I	Insertan item.\n";
	cout << "A	Ascending order.\n";
	cout << "Q	Quit.\n";
	cout << "----------------------------\n";
	cout << "Your option is: ";
	cin >> op;
	

	while(toupper(op) != 'Q')
	{
		if (toupper(op) == 'I')
		{	cout << "Input the item: " ;
			cin >> item;
			real.Insert(item);
			cout << "The list is - ";
			real.Print();
		}
		else if(toupper(op) == 'A')
		{	real.SelectionSort();
			cout << "The list is - ";
			real.Print();
		}
		        cout << "       List Operations\n";
        	cout << "\n\n ===========================\n";
        	cout << "I      Insertan item.\n";
        	cout << "A      Ascending order.\n";
        	cout << "Q      Quit.\n";
        	cout << "----------------------------\n";
        	cout << "Your option is: ";
       		 cin >> op;

	
	
	}
	return 0;
}