Please Update the Test Cases
Please add this or something similar to the test cases:\n["a@leetcode.com","b@leetcode.com","c@leetcode.com"]\n\nMany of the fastest accepted solutions look lik
Please add this or something similar to the test cases:\n*["a@leetcode.com","b@leetcode.com","c@leetcode.com"]*\n\nMany of the fastest accepted solutions look like this:\n\n```\nSet<String> seen = new HashSet();\n        for (String email: emails) {\n            int i = email.indexOf(\'@\');\n            String rest = email.substring(i);\n            seen.add(rest);\n        }\n        return seen.size();\n```\n\nThe fact that this is an accepted solution shows a gap in the test cases. E.g., the proposed test case fails with the above code even though the code is accepted.
[]