Day 8.ipynb

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   "source": [
    "## Find Users With Valid E-Mails Leetcode Task8"
   ]
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  {
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   "execution_count": 2,
   "id": "814f2532",
   "metadata": {},
   "outputs": [],
   "source": [
    "import pandas as pd\n",
    "import numpy as np"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "42bc36b7",
   "metadata": {},
   "outputs": [],
   "source": [
    "data = [[1, 'Winston', 'winston@leetcode.com'], [2, 'Jonathan', 'jonathanisgreat'], [3, 'Annabelle', 'bella-@leetcode.com'], [4, 'Sally', 'sally.come@leetcode.com'], [5, 'Marwan', 'quarz#2020@leetcode.com'], [6, 'David', 'david69@gmail.com'], [7, 'Shapiro', '.shapo@leetcode.com']]\n",
    "Users = pd.DataFrame(data, columns=['user_id', 'name', 'mail']).astype({'user_id':'int64', 'name':'object', 'mail':'object'})"
   ]
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   "id": "109f134d",
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   "outputs": [
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       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>user_id</th>\n",
       "      <th>name</th>\n",
       "      <th>mail</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>1</td>\n",
       "      <td>Winston</td>\n",
       "      <td>winston@leetcode.com</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>2</td>\n",
       "      <td>Jonathan</td>\n",
       "      <td>jonathanisgreat</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>3</td>\n",
       "      <td>Annabelle</td>\n",
       "      <td>bella-@leetcode.com</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>4</td>\n",
       "      <td>Sally</td>\n",
       "      <td>sally.come@leetcode.com</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>5</td>\n",
       "      <td>Marwan</td>\n",
       "      <td>quarz#2020@leetcode.com</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>6</td>\n",
       "      <td>David</td>\n",
       "      <td>david69@gmail.com</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>7</td>\n",
       "      <td>Shapiro</td>\n",
       "      <td>.shapo@leetcode.com</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
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      "text/plain": [
       "   user_id       name                     mail\n",
       "0        1    Winston     winston@leetcode.com\n",
       "1        2   Jonathan          jonathanisgreat\n",
       "2        3  Annabelle      bella-@leetcode.com\n",
       "3        4      Sally  sally.come@leetcode.com\n",
       "4        5     Marwan  quarz#2020@leetcode.com\n",
       "5        6      David        david69@gmail.com\n",
       "6        7    Shapiro      .shapo@leetcode.com"
      ]
     },
     "execution_count": 50,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "Users"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "id": "3bf7d19d",
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   "outputs": [
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       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>user_id</th>\n",
       "      <th>name</th>\n",
       "      <th>mail</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>1</td>\n",
       "      <td>Winston</td>\n",
       "      <td>winston@leetcode.com</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>3</td>\n",
       "      <td>Annabelle</td>\n",
       "      <td>bella-@leetcode.com</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>4</td>\n",
       "      <td>Sally</td>\n",
       "      <td>sally.come@leetcode.com</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
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      "text/plain": [
       "   user_id       name                     mail\n",
       "0        1    Winston     winston@leetcode.com\n",
       "2        3  Annabelle      bella-@leetcode.com\n",
       "3        4      Sally  sally.come@leetcode.com"
      ]
     },
     "execution_count": 51,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "Users[Users['mail'].str.match('^[a-zA-Z][a-zA-Z0-9._/&|-]*+@leetcode.com')]"
   ]
  }
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