InterviewBit Problems   Multiply Strings : Unsolved

About the Multiply Strings : Unsolved category (1)
Simple ten line Cpp Solution :) (4)
Easiest solution1.0 c++ (2)
How can i use string stream (if I can) (2)
Title of your comment Why no superman (2)
Code failing for larger test cases (1)
Can anyone suggest me how can stringstream be used here? (1)
My code gives Wrong output for a very large input? What is wrong? (3)
Different answer while testing and submitting (4)
Can you tell me why I am getting a TLE? (2)
Test case fails whereas actual and expected are the same (1)
Different answer when submitting and passing the same input as custom input (1)
Custom input broken (2)
Error on submit but output is as expected in custom test case (1)
Ans correct tbut than also error in eclipse (1)
Bug in the input (1)
Custom test case problem (2)
Are the time limits different for manual input and submit? I have an O(N^2) algor (3)
My answer is essentially the same as the ans approach in JAVA and it is giving TL (2)