Facebook & Apple's VALID PALINDROME | LeetCode | [step by step optimized 2 solutions | JAVASCRIPT
Problem link / URL : https://leetcode.com/problems/valid-p...
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VALID PALINDROME is a tech interview question asked by Facebook, Amazon, Apple, Microsoft, Bloomberg, Wayfair, Oracle and other compaines.
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.
Input: "A man, a plan, a canal: Panama"
Output: true
Input: "race a car"
Output: false
Related topics: STRINGS, 2 POINTERS