lonelyInteger.ipynb

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  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import math\n",
    "import os\n",
    "import random\n",
    "import re\n",
    "import sys\n",
    "\n",
    "def lonelyinteger(a):\n",
    "    unique=0\n",
    "    for i in a:\n",
    "        unique^= i\n",
    "    return unique\n"
   ]
  }
 ],
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  "language_info": {
   "name": "python"
  }
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