InterviewBit Problems   Scramble String : Unsolved

About the Scramble String : Unsolved category (1)
Invalid test case! (5)
A simple derivation of MCM, doesn't even deserve 500 points (1)
Solution with help of map (3)
What is time complexity of my solution (1)
What is the time complexity of recursive solution ,can anyone explain me! (2)
Clarification in question (1)
Any Java Solution (5)
Concept of Scrambled String (7)
Check out this video to get a clear idea! (1)
Weak Problem Test Cases (1)
Problem explanation needed (2)