136. Single Number.ipynb

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   "source": [
    "def singleNumber(nums):\n",
    "    for ele in set(nums):\n",
    "        if nums.count(ele) == 1:\n",
    "            return ele\n",
    "\n",
    "nums = [4,1,2,1,2]\n",
    "a = [1,2,4]\n",
    "\n",
    "singleNumber(nums)"
   ]
  }
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