Woburn Challenge 2017-18 Round 3 - Junior Division
You'd like to register an account on an extremely entertaining
website. You've already selected
a username, but it seems that the requirements for choosing a password
are quite strict, in order to completely protect your account from being
hacked into. The password must be a string between and characters
long (inclusive), such that every character is either a lowercase letter
(a
… z
), uppercase letter (A
… Z
), or digit
(0
… 9
). Furthermore, it must contain at least three lowercase
letters, at least two uppercase letters, and at least one digit.
You've got a potential password in mind, a non-empty string made up of at most characters, each of which is a lowercase letter, uppercase letter, or digit. Rather than entering the password into the site and risking rejection, you'd like to determine for yourself whether or not your password would validly satisfy all of the rules.
Input Specification
The first and only line of input consists of a single string, the password.
Output Specification
Output a single string, either Valid
if the password is valid, or
Invalid
otherwise.
Sample Input 1
PassW0rd
Sample Output 1
Valid
Sample Input 2
CorrectHorseBatteryStaple
Sample Output 2
Invalid
Sample Explanations
In the first case, the password has characters, with lowercase letters, uppercase letters, and digit, meaning that all of the rules are satisfied.
In the second case, the password has two issues - it's more than characters long, and it doesn't contain at least one digit.
Comments