InterviewBit Problems   Prime Numbers : Unsolved

About the Prime Numbers : Unsolved category (1)
Could not Test/Submit because of IndentationError (1)
Prime Numbers | C++ (1)
A very clumsy ide (2)
I am getting an Array Index out of Bounds error, however I am unable to see how I (2)
How can you know if you solved it in optimal time? (2)
What should be the return value if input is N=1? My solution returns nothing for (3)
If you are new watch the video it's pretty cool (1)
Can anyone explain whats wrong with my code? and i also did not get the meaning o (1)
Why is that bitset is not defined in C++? (1)
Can I add a function to this? (1)
Max Value of A should have been mentioned in the problem statement (2)