{
 "cells": [
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   "source": [
    "## Number 217"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "[https://leetcode.com/problems/contains-duplicate/]([https://leetcode.com/problems/contains-duplicate/])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "from typing import List\n",
    "\n",
    "class Solution:\n",
    "    def containsDuplicate(self, nums: List[int]) -> bool:\n",
    "        nums2 = (set(nums))\n",
    "        if len(nums2) != len(nums):\n",
    "            return True\n",
    "        return False\n",
    "\n",
    "a = Solution()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "True\n",
      "False\n",
      "True\n"
     ]
    }
   ],
   "source": [
    "print(a.containsDuplicate([1,2,3,1]))\n",
    "print(a.containsDuplicate([1,2,3,4]))\n",
    "print(a.containsDuplicate([1,1,1,3,3,4,3,2,4,2]))"
   ]
  }
 ],
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