#2299

Strong Password Checker II

easy · verified · 55.3% accepted · 382 likes · top 48%

string

⊣ practice⊣ open on leetcode ↗

Description

A password is said to be strong if it satisfies all the following criteria:

- It has at least 8 characters.

- It contains at least one lowercase letter.

- It contains at least one uppercase letter.

- It contains at least one digit.

- It contains at least one special character. The special characters are the characters in the following string: "!@#$%^&*()-+".

- It does not contain 2 of the same character in adjacent positions (i.e., "aab" violates this condition, but "aba" does not).

Given a string password, return true if it is a strong password. Otherwise, return false.

Example 1:

Input: password = "IloveLe3tcode!"
Output: true
Explanation: The password meets all the requirements. Therefore, we return true.

Example 2:

Input: password = "Me+You--IsMyDream"
Output: false
Explanation: The password does not contain a digit and also contains 2 of the same character in adjacent positions. Therefore, we return false.

Example 3:

Input: password = "1aB!"
Output: false
Explanation: The password does not meet the length requirement. Therefore, we return false.

Solution