A playlist is considered a repeating playlist if any of the songs contain a reference to a previous song in the playlist. Otherwise, the playlist will end with the last song which points to None.
Implement a function is_repeating_playlist that, efficiently with respect to time used, returns true if a playlist is repeating or false if it is not.
For example, the following code prints "True" as both songs point to each other.
first = Song("Hello") second = Song("Eye of the tiger") first.next_song(second); second.next_song(first); print(first.is_repeating_playlist())
- Example case: Wrong answer
- Song will repeat: Wrong answer
- Song will not repeat: Wrong answer
- Performance test on a large playlist: Wrong answer