Practice>Python>Python Functionals>Validating Email Addresses With a Filter

hackerrank.com

Validating Email Addresses With a Filter

Problem link : https://www.hackerrank.com/challenges/validate-list-of-email-address-with-filter/problem

Difficulty : Medium

Tip

• Problem should be for regular expression, not for filter lol :)
• Write regular expression to validate email address
• import re <- don't miss

Solution

import re def fun(s): # return True if s is a valid email, else return False a = re.match(r'[a-zA-Z0-9_-]+@[a-zA-Z0-9]+\.[a-zA-Z]{1,3}$',s) return(a) def filter_mail(emails): return list(filter(fun, emails)) if __name__ == '__main__': n = int(input()) emails = [] for _ in range(n): emails.append(input()) filtered_emails = filter_mail(emails) filtered_emails.sort() print(filtered_emails)