You are given an array of strings containing some duplicates as an argument. Return an array without any duplicated strings.

Requirements

• Must return an array of strings
• Must be able to handle uppercase, lowercase and special characters
• Must also work with strings of words as well as single character strings

Example #1

solve(["a","b","b","a","c","d"])
> ["a","b","c","d"]

Example #2

solve(["a","b","b","Hello!","c","goodbye", "Hello!"])
> ["a","b","Hello!","c","goodbye"]