InterviewBit Problems   Merge Overlapping Intervals : Unsolved

Can you tell me what is the problem here (1)
Do not use vector erase in cpp (3)
Giving correct when same test case is given in test custom input but while clicking on submit it's giving wrong answer (1)
IB needs to improve their portal so much (1)
Invalid preprocessing directive #Definition (1)
Got correct output as Custom input but wrong answer for the same input (1)
Python TypeError while converting each subarray from tuple to list (4)
Size of vector in cpp (1)
Is the input sorted? (3)
Tried everything but getting only 214/225 points ? what's wrong (2)
Not acception Interval class (2)
Why C# is not supported (1)
Issue with the output of 1 test case (2)
Cannot write Code in Javascript (1)
Code working when error input is given as custom input (1)
Code not working and showing desired output (1)
I am getting TypeError : TypeError: %d format: a number is required, not instance (1)
O(n) solution and O(nlogn) sorting. Still TLE! Help please (4)
IB output vs IDE output - Can someone help? (1)
AttributeError while accessing subarray and comparing with another (1)
Getting correct answer in custom test case but wrong while submitting the code (1)
Getting WA for an input whose expected output is (1,87) and mine is displayed as (6)
Expected output returns incorrect result (1)
Working fine in local machine, but throwing AttributeError here for same input (1)
TLE error for O(n log n) - Can anyone help? (2)
Getting the output in custom test case but returning none while submitting (1)
Good test cases. Involves a lot of edge cases (1)
O(nlogn) still TLE? (3)
Why does it consider intervals just meeting as overlapping? (2)
Getting Run time Error (2)