cooperatively with local community optometrists allowing patients from surrounding communities such as North Platte, Kearney, Hastings, Grand Island, Crete, Fairbury, Auburn and Syracuse to have surgery at our Institute yet receive convenient postoperative care and follow upright in their own communities....
* Given a string, determine if it is a palindrome, considering only * alphanumeric characters and ignoring cases. * * For example, "A man, a plan, a canal: Panama" is a palindrome. "race a car" * is not a palindrome. * * Note: Have you consider that the string might be empty?