InterviewBit Problems   All Unique Permutations : Solved

About the All Unique Permutations : Solved category (1)
C++, Recursion, Swap approach, without hashmap (1)
Solution using set (1)
Python solution with prefix building (1)
Simple solution using java (1)
Python recursive method with usage of set() (1)
Time Limit Exceeded. Does anyone have a better solution? (3)
Iterative version in C++ (1)
Weird return in JS (1)
This problem is trivial if you've already solved NEXTPERM (http://www.interviewbi (2)