InterviewBit Problems   Largest Rectangle in Histogram : Unsolved

About the Largest Rectangle in Histogram : Unsolved category (1)
Can somebody please tell where I am doing the mistake, not giving the right output (1)
Using stack : Shortest solution you will get (2)
Getting test case error (2)
Runtime error for NSR-NSL-1 concept (1)
Showing error , couldn't find where the problem is (1)
You got 440/450 points! (2)
Test case wrong (19)
This Is the Combination of two problems that is Nearest Smallest To left and Nearest Smallest to Right (1)
Correct Answer. You got 445/450 points! (1)
Why memory limit exceeding in my code? (1)
Simplest code by shubhankar (2)
What is the problem with this code...showing run time error (3)
Not working for the given test case. please tell the error (3)
Wrong expected answer 5 4 3 2 2 2 1 3 (2)
Wrong solution expected (3)
Giving wrong output for large test cases (1)
Whats wrong with the code. i cant figure out (two pointer solution) (3)
Solution submitted with O(n) extra space (3)
Very Misleading Question (1)
Custom input vs Submit (1)
Wonderful problem (2)
Submitting the answer displays arbitrary results (1)
Namings: histogram != a single bar in the histogram (1)