void Vector::push_back(const int & val)
{
	if (this->_size  < this->_capacity) {
		this->_elements[this->_size] = val;
		this->_size++;
	}
	else {
		int new_capacity = this->_capacity + this->_resizeFactor;
		std::cout << "new cap " << new_capacity;
		int* elements = new int[new_capacity];
		for (int i = 0; i < this->_size; ++i)
		{
			elements[i] = this->_elements[i];
		}
		this->~Vector();
		this->_capacity = new_capacity;
		elements[this->_size] = val;
		this->_size++;
		this->_elements = elements;

	}
}