Python Solution - Runtime: 99.66% Faster, Memory Usage: 100%  Lesser
\nclass Solution(object):\n    def numUniqueEmails(self, emails):\n        """\n        :type emails: List[str]\n        :rtype: int\n        """\n        actua
```\nclass Solution(object):\n    def numUniqueEmails(self, emails):\n        """\n        :type emails: List[str]\n        :rtype: int\n        """\n        actual = set()\n        for email in  emails:\n            x = email.split("@")\n            y = x[0].split("+")\n            z = y[0].replace(".", "")\n            x = z + "@" + x[1]\n            actual.add(x)\n        return len(actual)\n```
['Array', 'Ordered Set']