The document describes the implementation of an abstract function `min` in the C++ class `arraylisttype`, intended to return the smallest element of a list. Additionally, it includes the definition of this function in the derived class `unorderedarraylisttype` and provides examples of various member functions for managing an array-based list. Code snippets for class definitions and implementations are included to illustrate the structure and functionality of the list classes.

1. In C++:
Add the function min as an abstract function to the classarrayListTypeto return the smallest
element of the list.
Also, write the definition of the function min in the classunorderedArrayListTypeand write a
program to test this function.
arrayListType.h
#ifndef H_arrayListType
#define H_arrayListType
class arrayListType
{
public:
bool isEmpty() const;
//Function to determine whether the list is empty
//Postcondition: Returns true if the list is empty;
// otherwise, returns false.
bool isFull() const;
//Function to determine whether the list is full
//Postcondition: Returns true if the list is full;
// otherwise, returns false.
int listSize() const;
//Function to determine the number of elements in
//the list.
//Postcondition: Returns the value of length.
int maxListSize() const;
//Function to determine the maximum size of the list
//Postcondition: Returns the value of maxSize.

2. void print() const;
//Function to output the elements of the list
//Postcondition: Elements of the list are output on the
// standard output device.
bool isItemAtEqual(int location, int item) const;
//Function to determine whether item is the same as
//the item in the list at the position specified
//by location.
//Postcondition: Returns true if list[location]
// is the same as item; otherwise,
// returns false.
// If location is out of range, an
// appropriate message is displayed.
virtual void insertAt(int location, int insertItem) = 0;
//Function to insert insertItem in the list at the
//position specified by location.
//Note that this is an abstract function.
//Postcondition: Starting at location, the elements of
// the list are shifted down,
// list[location] = insertItem; length++;
// If the list is full or location is out of
// range, an appropriate message is displayed.
virtual void insertEnd(int insertItem) = 0;
//Function to insert insertItem at the end of
//the list. Note that this is an abstract function.
//Postcondition: list[length] = insertItem; and length++;
// If the list is full, an appropriate
// message is displayed.

3. void removeAt(int location);
//Function to remove the item from the list at the
//position specified by location
//Postcondition: The list element at list[location] is
// removed and length is decremented by 1.
// If location is out of range, an
// appropriate message is displayed.
void retrieveAt(int location, int& retItem) const;
//Function to retrieve the element from the list at the
//position specified by location
//Postcondition: retItem = list[location]
// If location is out of range, an
// appropriate message is displayed.
virtual void replaceAt(int location, int repItem) = 0;
//Function to replace the elements in the list
//at the position specified by location.
//Note that this is an abstract function.
//Postcondition: list[location] = repItem
// If location is out of range, an
// appropriate message is displayed.
void clearList();
//Function to remove all the elements from the list
//After this operation, the size of the list is zero.
//Postcondition: length = 0;
virtual int seqSearch(int searchItem) const = 0;
//Function to search the list for searchItem.
//Note that this is an abstract function.
//Postcondition: If the item is found, returns the

4. // location in the array where the item is
// found; otherwise, returns -1.
virtual void remove(int removeItem) = 0;
//Function to remove removeItem from the list.
//Note that this is an abstract function.
//Postcondition: If removeItem is found in the list,
// it is removed from the list and length
// is decremented by one.
// Add the abstract function min
arrayListType(int size = 100);
//Constructor
//Creates an array of the size specified by the
//parameter size. The default array size is 100.
//Postcondition: The list points to the array, length = 0,
// and maxSize = size;
arrayListType (const arrayListType& otherList);
//Copy constructor
virtual ~arrayListType();
//Destructor
//Deallocate the memory occupied by the array.
protected:
int *list; //array to hold the list elements
int length; //variable to store the length of the list

5. int maxSize; //variable to store the maximum
//size of the list
};
#endif
arrayListTypelmp.cpp
#include
#include "arrayListType.h"
using namespace std;
bool arrayListType::isEmpty() const
{
return (length == 0);
} //end isEmpty
bool arrayListType::isFull() const
{
return (length == maxSize);
} //end isFull
int arrayListType::listSize() const
{
return length;
} //end listSize
int arrayListType::maxListSize() const
{
return maxSize;

6. } //end maxListSize
void arrayListType::print() const
{
for (int i = 0; i < length; i++)
cout << list[i] << " ";
cout << endl;
} //end print
bool arrayListType::isItemAtEqual(int location, int item) const
{
if (location < 0 || location >= length)
{
cout << "The location of the item to be removed "
<< "is out of range." << endl;
return false;
}
else
return (list[location] == item);
} //end isItemAtEqual
void arrayListType::removeAt(int location)
{
if (location < 0 || location >= length)
cout << "The location of the item to be removed "
<< "is out of range." << endl;
else
{
for (int i = location; i < length - 1; i++)
list[i] = list[i+1];

7. length--;
}
} //end removeAt
void arrayListType::retrieveAt(int location, int& retItem) const
{
if (location < 0 || location >= length)
cout << "The location of the item to be retrieved is "
<< "out of range" << endl;
else
retItem = list[location];
} //end retrieveAt
void arrayListType::clearList()
{
length = 0;
} //end clearList
arrayListType::arrayListType(int size)
{
if (size <= 0)
{
cout << "The array size must be positive. Creating "
<< "an array of the size 100." << endl;
maxSize = 100;
}
else
maxSize = size;

8. length = 0;
list = new int[maxSize];
} //end constructor
arrayListType::~arrayListType()
{
delete [] list;
} //end destructor
arrayListType::arrayListType(const arrayListType& otherList)
{
maxSize = otherList.maxSize;
length = otherList.length;
list = new int[maxSize]; //create the array
for (int j = 0; j < length; j++) //copy otherList
list [j] = otherList.list[j];
}//end copy constructor
main.cpp
//Data: 18 42 78 22 42 5 42 57
#include
#include "unorderedArrayListType.h"
using namespace std;

9. int main() {
// Write your main here
return 0;
}
unorderedArrayListType.h
#ifndef H_unorderedArrayListType
#define H_unorderedArrayListType
#include "arrayListType.h"
class unorderedArrayListType: public arrayListType
{
public:
void insertAt(int location, int insertItem);
void insertEnd(int insertItem);
void replaceAt(int location, int repItem);
int seqSearch(int searchItem) const;
void remove(int removeItem);
// Add the min function
unorderedArrayListType(int size = 100);
//Constructor
};
#endif
unorderedArrayListTypelmp.cpp
#include

10. #include "unorderedArrayListType.h"
using namespace std;
void unorderedArrayListType::insertAt(int location,
int insertItem)
{
if (location < 0 || location >= maxSize)
cout << "The position of the item to be inserted "
<< "is out of range." << endl;
else if (length >= maxSize) //list is full
cout << "Cannot insert in a full list" << endl;
else
{
for (int i = length; i > location; i--)
list[i] = list[i - 1]; //move the elements down
list[location] = insertItem; //insert the item at
//the specified position
length++; //increment the length
}
} //end insertAt
void unorderedArrayListType::insertEnd(int insertItem)
{
if (length >= maxSize) //the list is full
cout << "Cannot insert in a full list." << endl;
else
{
list[length] = insertItem; //insert the item at the end
length++; //increment the length
}

11. } //end insertEnd
int unorderedArrayListType::seqSearch(int searchItem) const
{
int loc;
bool found = false;
loc = 0;
while (loc < length && !found)
if (list[loc] == searchItem)
found = true;
else
loc++;
if (found)
return loc;
else
return -1;
} //end seqSearch
void unorderedArrayListType::remove(int removeItem)
{
int loc;
if (length == 0)
cout << "Cannot delete from an empty list." << endl;
else
{

12. loc = seqSearch(removeItem);
if (loc != -1)
removeAt(loc);
else
cout << "The item to be deleted is not in the list."
<< endl;
}
} //end remove
// Add the definition for the min function
void unorderedArrayListType::replaceAt(int location, int repItem)
{
if (location < 0 || location >= length)
cout << "The location of the item to be "
<< "replaced is out of range." << endl;
else
list[location] = repItem;
} //end replaceAt
unorderedArrayListType::unorderedArrayListType(int size)
: arrayListType(size)
{
} //end constructor