     ]
    },
    {
     "cell_type": "code",
     "execution_count": 2,
     "metadata": {
      "collapsed": false
     },
     "outputs": [],
     "source": [
 
</s> remove     "        node.left = self._create_min_bst(array, start, mid-1)\n",
    "        node.right = self._create_min_bst(array, mid+1, end)\n",
 </s> add     "        node.left = self._create_min_bst(array, start, mid - 1)\n",
    "        node.right = self._create_min_bst(array, mid + 1, end)\n", </s> remove     "    * hanoi(n-1, buffer, dest)    \n",
 </s> add     "    * hanoi(n-1, buffer, dest, src)\n", </s> remove     "    * hanoi(n-1, src, buffer)\n",
 </s> add     "    * hanoi(n-1, src, buffer, dest)\n",
   "execution_count": 1,
     ]
    },
    {
     "cell_type": "code",
   "execution_count": 1,
     "metadata": {
      "collapsed": false
     },
     "outputs": [],
     "source": [
keep keep keep keep replace keep keep keep keep keep
 Update formatting and whitespace in a few challenges (#142) 
graphs_trees/bst_min/bst_min_solution.ipynb