Solution: Valid Palindrome
Explore how to apply the two pointer method to verify if a string is a valid palindrome. This lesson teaches you to skip non-alphanumeric characters, perform case-insensitive comparisons, and optimize space with constant memory usage while ensuring linear time complexity.
Statement
Given a string, s, return TRUE if it is a palindrome; otherwise, return FALSE.
A phrase is considered a palindrome if it reads the same backward as forward after converting all uppercase letters to lowercase and removing any characters that are not letters or numbers. Only alphanumeric characters (letters and digits) are taken into account.
Constraints:
s.length...