I've successfully completed the pset4 and submitted the code. I've checked the correctness of my code with check50 and I have:

:) recover.c exists
:) recover.c compiles
:) recovers 000.jpg correctly
:) recovers 001.jpg through 014.jpg correctly
:) recovers 015.jpg correctly

But in the grading I've 1 point for recovers 000.jpg correctly. 0 point for recovers 001.jpg through 014.jpg correctly, and 0 point for recovers 015.jpg correctly

I don't know what's the problem :/

Thank you in advance :)

  • you should probably verify your solution again using check50 and resubmit. if you're still having the same problem, drop [email protected] a note with your edX email and the necessary details!
    – kzidane
    Jun 27, 2015 at 23:52
  • Okey @Kareem thank you !
    – Ahmed
    Jun 27, 2015 at 23:56

1 Answer 1


got the expected grade after resubmitting my solution.

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