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   "source": [
    "# Leaders\n",
    "An element is leader if it is greater than all the elements to its right side. And the rightmost element is always a leader.\n",
    "For example in the array [16, 17, 4, 3, 5, 2], leaders are 17, 5 and 2."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
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   "source": [
    "def getLeaders(arr):\n",
    "    big = arr[len(arr) - 1]    \n",
    "    yield big    \n",
    "    for i in range(len(arr) - 2, -1, -1):\n",
    "        if arr[i] > big:\n",
    "            big = arr[i]\n",
    "            yield big"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[16, 17, 4, 3, 5, 2]"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "arr = [16, 17, 4, 3, 5, 2]\n",
    "arr"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[2, 5, 17]"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "list(getLeaders(arr))"
   ]
  }
 ],
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