     ]
    },
    {
     "cell_type": "code",
     "execution_count": null,
     "metadata": {
      "collapsed": false
     },
     "outputs": [],
     "source": [
 
</s> remove    "execution_count": null,
 </s> add    "execution_count": 2, </s> remove    "execution_count": null,
 </s> add    "execution_count": 4, </s> remove    "execution_count": null,
 </s> add    "execution_count": 1, </s> remove     "collapsed": true
 </s> add     "collapsed": false </s> remove   {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "# Empty linked list\n",
    "linked_list = MyLinkedList(None)\n",
    "linked_list.remove_dupes()\n",
    "linked_list.print_list()\n",
    "# One element linked list\n",
    "head = Node(2)\n",
    "linked_list = MyLinkedList(head)\n",
    "linked_list.remove_dupes()\n",
    "linked_list.print_list()\n",
    "# Multiple elements\n",
    "# One or more duplicates\n",
    "linked_list.insert_to_front(1)\n",
    "linked_list.insert_to_front(3)\n",
    "linked_list.insert_to_front(1)\n",
    "linked_list.insert_to_front(1)\n",
    "linked_list.remove_dupes()\n",
    "linked_list.print_list()\n",
    "# No duplicates\n",
    "linked_list.remove_dupes()\n",
    "linked_list.print_list()"
   ]
  },
 </s> add 
   "execution_count": 3,
     ]
    },
    {
     "cell_type": "code",
   "execution_count": 3,
     "metadata": {
      "collapsed": false
     },
     "outputs": [],
     "source": [
keep keep keep keep replace keep keep keep keep keep
 Reworked notebook: Added more detail to constraints and test cases.  Reworked unit test. 
linked-lists/remove-duplicates.ipynb