Quiz

A password is considered strong if the below conditions are all met:

- It has at least 6 characters and at most 20 characters.

- It contains at least one lowercase letter, at least one uppercase letter, and at least one digit.

- It does not contain three repeating characters in a row (i.e., "Baaabb0" is weak, but "Baaba0" is strong).

Given a string password, return the minimum number of steps required to make password strong. if password is already strong, return 0.

In one step, you can:

- Insert one character to password,

- Delete one character from password, or

- Replace one character of password with another character.