929_unique_email_addresses.py

class Solution:
    def numUniqueEmails(self, emails: List[str]) -> int:

        def process_name(s: str) -> str:
            ans = ''
            for ch in s:
                if ch == '.':
                    pass
                elif ch == '+':
                    break
                else:
                    ans += ch
            return ans

        email_set = set()
        for email in emails:
            strs = email.split('@')
            tmp = process_name(strs[0]) + '@' + strs[1]
            email_set.add(tmp)
        return len(email_set)

'''
    This is my personal record of solving Leetcode Problems. 
    If you have any questions, please discuss them in [Issues](https://github.com/mengxinayan/leetcode/issues).
    Copyright (C) 2020-2022  mengxinayan

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
'''