https://leetcode.com/problems/strong-password-checker
A password is considered strong if the below conditions are all met:
It has at least 6 characters and at most 20 characters.
6
20
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., "...aaa..." is weak, but "...aa...a..." is strong, assuming other conditions are met).
"...aaa..."
"...aa...a..."
Given a string password, return the minimum number of steps required to make password strong. if password is already strong, return 0.
password
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.
Example 1:
**Input:** password = "a" **Output:** 5
Example 2:
**Input:** password = "aA1" **Output:** 3
Example 3:
Constraints:
1 <= password.length <= 50
password consists of letters, digits, dot '.' or exclamation mark '!'.
'.'
'!'
Last updated 4 years ago
**Input:** password = "1337C0d3" **Output:** 0