design and implement a C++ class which can be used to represent and manipulate simple integer vectors. You must use dynamic memory allocation to do this; you may not use standard vectors.

Define a class called intVector which handles all of the operations illustrated in the main function below:

#include

using namespace std;

//your definition of intVector here

int main()

{

int n;

cout << "Enter the size of intVector a: "; cin >> n;

// Create a new intVector with n elements, all zero

intVector a(n);

// Create a new intVector with 0 elements

intVector b;

// Print out some information about the size of this intVector:

cout << "Vector a has " << a.size() << " elements." << endl;

cout << "Vector b has " << b.size() << " elements." << endl;

// Print out the contents of intVector a (should be all zeroes!):

for(int r = 0; r < a.size(); r++)

{

cout << "a[" << r <<"] = " << a.get(r) << endl;

}

// Fill in a few values

// if a.size < index, the intVector is resized with intervening elements = 0

a.set(5, -5280); // 6th element is now -5280, elements 1-5 are 0

a.set(0, 123); // 1st element is now 123

// Create an identical copy of this intVector

intVector c(a); //the copy constructor is called here

// Assign intVector a to existing intVector b;

//don't implement an assignment operator. This should use the default assignment operator.

b = a;

// Change the original intVector some more

a.set(2, 555); // 3rd element is now 555

// Examine some elements of each intVector

cout << "a[0] = " << a.get(0) << " [should be 123]" << endl;

cout << "b[0] = " << b.get(0) << " [should be 123]" << endl;

cout << "c[0] = " << c.get(0) << " [should be 123]" << endl;

cout << "a[2] = " << a.get(2) << " [should be 555]" << endl;

cout << "b[2] = " << b.get(2) << " [should be 0, but will be 555 due to shallow copy]" << endl;

cout << "c[2] = " << c.get(2) << " [should be 0]" << endl;

return 0;

}

//your implementation of intVector member functions here