InterviewBit Problems   Subset : Unsolved

Ordering of the result (1)
Irrelevant subset ordering (1)
Can anyone explain me this piece of code? (2)
Do a Depth First Search to get ordered set (1)
Problem says no duplicate subsets. But expected output has duplicate subsets (2)
Failing with empty list even though I'm returning an empty list (2)
Incorrect test case should compare by backtracking ;-) (2)
Order of output is rejecting the solution (4)
Weak test cases for this problem (2)
Errro on submission (1)
Interviewbit Testing failure (3)
Not getting things worked (1)
Interview bit not traversing the my return (1)
When I test the code with custom input it gives me correct answer, but when I sub (1)
For the input [11, 16, 15, 5] I get the correct answer when I test it on the buil (2)