int* mem() {
    newBuffer = new int[capacity * 2 + 2];
    memcpy(newBuffer, buffer, sizeof(buffer)*capacity);
    newSize = capacity * 2 + 2;
    return newBuffer;
    //delete[] newBuffer;
}

int* add(const int& element, int *newBuffer) {
    newBuffer[capacity] = element;
    delete[] buffer;
    buffer = newBuffer;
    return buffer;
}

//Добавление нового элемента в массив.
void add_element(const int& element)
{
    if (capacity == newSize) {
        int *newBuffer = mem();
    }
    buffer = add(element, newBuffer);
    capacity = capacity + 1;
}