PERMUTATION

Question

Eliminating Repetitive Outputs [EXAMPLE: INPUT OFF OUTPUT SHOULD BE: FFO FOF OFF]
https://code.sololearn.com/cTBt8Q0cwqv6/?ref=app
APWBD code

Answer 1

What's the question?

Answer 2

Try the code then input OFF
The outputs repeats
OFF
FOF
FFO
OFF
FOF
FFO

i just want to see OFF FFO FOF I mean Only Once