From 5c05a81ef86b4b75453ba863c1ab7b558f028923 Mon Sep 17 00:00:00 2001 From: ivan Date: Fri, 4 Sep 2026 05:14:31 -0600 Subject: [PATCH] adding updates --- .../common_algos/valid_palindrome_round_3.py | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_3.py diff --git a/src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_3.py b/src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_3.py new file mode 100644 index 00000000..9db29ff2 --- /dev/null +++ b/src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_3.py @@ -0,0 +1,22 @@ +from typing import List, Union, Collection, Mapping, Optional +from abc import ABC, abstractmethod +import re + +class Solution: + def isPalindrome(self, s: str) -> bool: + + # To lowercase + s = s.lower() + + # Remove non-alphanumeric characters + s = re.sub(pattern=r'[^a-zA-Z0-9]', repl='', string=s) + + # Determine if s is palindrome or not + len_s = len(s) + + for i in range(len_s//2): + + if s[i] != s[len_s - 1 - i]: + return False + + return True \ No newline at end of file