Solution: Valid Palindrome
Explore the two pointer technique to determine if a given string is a valid palindrome. Learn how to traverse the string efficiently by skipping non-alphanumeric characters and comparing characters case-insensitively. Understand how this approach optimizes time and space complexity compared to naive methods.
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...