#include <iostream>
using namespace std;
#define DataType int
#define Boolean bool
#define ARRAYSIZE 0
 
class SeqList
{
private:
	int size;
	int listitem[ARRAYSIZE];
 
 
public:
	SeqList(void);
 
	int ListSize(void)const;
	Boolean ListEmpty(void) const;
	Boolean Find(DataType& item) const;
	DataType GetData(int pos) const;
 
	void Insert(const DataType& item);
	void Delete(const DataType& item);
	DataType DeleteFront(void);
	void ClearList(void);
};
 
SeqList::SeqList()
{
	size = 0;
}
 
int SeqList::ListSize() const
{
	return size;
}
 
Boolean SeqList::ListEmpty() const
{
	if(size == 0)
		return true;
	else
		return false;
}
 
Boolean SeqList::Find(DataType& item) const
{
if(item == listitem[size])
{
return true;
}
else 
return false;
}
 
void SeqList::Insert(const int& item)//Input: Item to insert in the list, no preconditions, Process: //Add the item at the rear of the list., No output, Postconditions: The list has a new item; its size //is increased by one
{
	size++;
	listitem[size] = item;
 
}
DataType SeqList::GetData(int pos) const
{
	if(pos >= size) 
		abort();
	else
		return pos;
}
void SeqList::Delete(const int& item)//Input: Value to delete from the list, No preconditions, 
//Process: Scan the list and remove the first occurrence of the item in the list. Take no action if //the item is not in the list, no output, Post conditions: If a match occurs, the list has one fewer //items
{
	if(item != listitem[size])
	{
		abort();
	}
	else
		for(int i = 0; i < size; i++)
		{
			listitem[size]=listitem[size-1];
		}
 
}
 
//DataType DeleteFront(void)//No input, Preconditions: List must not be empty, Process: //Remove the first item  from the list, output: Return the value of the item that is removed
//Post conditions: The list has one fewer items
//{
//**Code for delete only with the index listitem[0]
//}
void ClearList(void)//No input, no preconditions, process: Remove all elements from the list and //set the list size to 0
{
 
}
int main()
{
	SeqList A;
	A.Insert(12);
 
	cout << A.ListSize()<<endl;
	if(A.ListEmpty()) cout<< "The List Is Empty" << endl;
	else 
		cout<< "The List Is Not Empty" << endl;
 
	return 0;
}