How should I practice Classify Password Strength?

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Classify Password Strength

HackerRank● MediumINTERNONSITE INTERVIEW

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Problem statement

Classify every string in passwords as "weak" or "strong".

A password is weak when it has fewer than six characters, consists entirely of digits, entirely of lowercase letters, or entirely of uppercase letters, or contains any string from commonWords as a case-sensitive substring. Otherwise it is strong. Return classifications in input order.

Function

classifyPasswords(passwords: String[], commonWords: String[]) → String[]

Examples

Example 1

passwords = ["abc123","ABCDEF","Abc!23"]commonWords = ["password"]return = ["strong","weak","strong"]

The mixed alphanumeric and mixed-symbol passwords pass, while the all-uppercase password is weak.

Example 2

passwords = ["mySecret1","safeA1"]commonWords = ["Secret"]return = ["weak","strong"]

The first password contains a blocked substring with matching case.

Constraints

1 <= passwords.length <= 1000.
0 <= passwords[i].length <= 1000.
0 <= commonWords.length <= 1000, and every common word is nonempty.
Inputs contain ASCII characters, and substring matching is case-sensitive.