Write clean_names(names) that, using map/filter with lambdas only: strips spaces, drops empty strings, title-cases, and removes duplicates keeping first occurrence.
clean_names([' asha', 'RAVI ', '', 'Asha', ' ']) → ['Asha', 'Ravi']
clean_names([]) → []
Submit runs 4 tests, including hidden edge cases.
Each hint gives a little more help. Try on your own first.
Run your code to see the output here.