A palindrome is a string of characters that is the same regardless of whether you read it forward or backward assuming that you ignore spaces, punctuations, and case. For example, Race car is a palindrome. So is a man, a plan, a canal: Panama. Instead of using stacks and queues, this time you should write a recursive function to determine if a string is a palindrome. Use the following function prototype: bool isPalindrome(string s);