int len; // To store the length of the array

int capacity; // To store the actual capacity of the array

T* arr; // Actual array

void operator = (const dynamic_array&) {} // Protect the assignment operator

dynamic_array(const dynamic_array&) {} // Protect copy constructor

int size (); // Get the size of the array

bool is_empty (); // Check whether the array is empty of not

T get_elem_at (int p_index); // Get the element at index p_index

void append (T obj); // Append the obj to the last of the array

int index_of (T obj); // Get the index of the given obj

T remove_at (int p_index); // Remove the element from the index p_index

T remove (T obj); // Remove the obj from the array

T operator[] (int p_index); // Overloading subscript operator for just getting the value at p_index

dynamic_array (int p_capacity) // Constructor with the given capacity

: len{0}

, capacity{p_capacity}

{

if (p_capacity < 0) {

cerr << "Exception: Capacity cannot be negative.\n";

capacity = 4;

}

if (capacity == 0) capacity = 4;

arr = new T[capacity]; // Should be a try catch block here but too lazy to implement it

}

dynamic_array () { // Non parametrized Constructor

len = 0;

capacity = 4;

arr = new T[capacity];

}

~dynamic_array () { // Destructor

delete[] arr;

}

T* get_start_ptr () { // Get the pointer to the start of the array;

return arr;

}

void clear () {

len = 0;

capacity = 0;

delete [] arr;

}

ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);

dynamic_array<int> a(5), b;

a.append (1002);

a.append (-9);

for (int i = 0; i < 5; ++i) {

a.append (i + 10);

}

a.append (0);

a.append (8);

a.append (-10);

// b = a; Will give error as assignment operator is private with this context

cout << "Array b: ";

for_each (b.get_start_ptr(), b.get_start_ptr () + b.size (), [](int x){cout << x << ' ';});

cout << '\n';

cout << "Before Sorting: ";

for_each (a.get_start_ptr(), a.get_start_ptr () + a.size (), [](int x){cout << x << ' ';});

cout << '\n';

cout << "After Sorting: ";

sort (a.get_start_ptr (), a.get_start_ptr () + a.size ());

for_each (a.get_start_ptr(), a.get_start_ptr () + a.size (), [](int x){cout << x << ' ';});

cout << '\n';

cout << "After removing 1002: ";

a.remove (1002);

for_each (a.get_start_ptr(), a.get_start_ptr () + a.size (), [](int x){cout << x << ' ';});

cout << '\n';

cout << "After removing 10: ";

a.remove (10);

for_each (a.get_start_ptr(), a.get_start_ptr () + a.size (), [](int x){cout << x << ' ';});

cout << '\n';

cout << "After removing -10: ";

a.remove (-10);

for_each (a.get_start_ptr(), a.get_start_ptr () + a.size (), [](int x){cout << x << ' ';});

cout << '\n';

return 0;

}