"""Leetcode 125. Valid Palindrome
Easy

URL: https://leetcode.com/problems/valid-palindrome/

Given a string, determine if it is a palindrome,
considering only alphanumeric characters and ignoring cases.

Note: For the purpose of this problem, we define empty string as valid palindrome.

Example 1:
Input: "A man, a plan, a canal: Panama"
Output: true

Example 2:
Input: "race a car"
Output: false
"""

class Solution(object):
    def isPalindrome(self, s):
        """
        :type s: str
        :rtype: bool
        """
        pass


def main():
    pass


if __name__ == '__main__':
    main()

Add lc0125_valid_palindrome.py