Unique Email Count

Given a list of email addresses, count the number of unique email addresses. An email address may have '.' characters (which can be ignored) and '+' characters (which allow for ignoring anything after the '+' in the local part of the address). The structure of an email address is: local_part@domain. For example, 'test.email+alex@leetcode.com' and 'test.e.mail+bob@leetcode.com' both represent the same email address, 'testemail@leetcode.com'. Input Format: - A single line containing multiple email addresses separated by spaces. Output Format: - Print the count of unique email addresses. Example: Input: "test.email+alex@leetcode.com test.e.mail+bob@leetcode.com testemail@leetcode.com" Output: 1