#includeThis code creates an IntArray object with five elements, populates it with some values and then uses the at() function to access the first, third and fifth elements of the array. The IntArray class is part of the Standard Library in C++. To use this class, you need to include the#include using namespace std; int main() { IntArray myArray(5); myArray[0] = 10; myArray[1] = 20; myArray[2] = 30; myArray[3] = 40; myArray[4] = 50; cout << "Element 1: " << myArray.at(0) << endl; cout << "Element 3: " << myArray.at(2) << endl; cout << "Element 5: " << myArray.at(4) << endl; return 0; }