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Do you think you are good at coding? Do you want to know how flexible you are? We bring you “Reverse coding”. This event brings out your potential in logical thinking and analytical skills. Input and output pairs will be given in the problem and the participant has to reverse code, that is to develop the source code. You have to sharpen your logic skills and pattern analysis to decrypt the link between input and output whilst you are playing with the code. Are you ready for the challenge?


  • Exciting Prizes and MERIT Certificate for winners
  • Participation Certificate for everyone


  • The creator of this contest is solely responsible for setting and communicating the eligibility requirements associated with prizes awarded to participants, as well as for procurement and distribution of all prizes. The contest creator holds HackerRank harmless from and against any and all claims, losses, damages, costs, awards, settlements, orders, or fines.
  • Code directly from our platform, which supports over 30 languages. Learn more here.
  • Login with your registered mail id.
  • No extra time will be provided start your coding ASAP


  • Each challenge has a pre-determined score.
  • A participant’s score depends on the number of test cases a participant’s code submission successfully passes.
  • If a participant submits more than one solution per challenge, then the participant’s score will reflect the highest score achieved. In a game challenge, the participant's score will reflect the last code submission.
  • Participants are ranked by score. If two or more participants achieve the same score, then the tie is broken by the total time taken to submit the last solution resulting in a higher score

Sign up for IEEE_Reverse_Coding now.

Not a genuine coding contest?