Hey!
So i have a program i need to write that must include the user to input their birthdate (mm-dd-yyyy) . Then i must validate the input from the user, meaning i need to check to make sure the month is between 1 and 12, the day is appropriate for the month, and the year is between 1875 and 2199. Then after that i need to calculate a single digit from the birth date. For example if your birth date is 3-19-1955 you add 3+1+9+1+9+5+5 to get...