• Compete
  • Learn
  • Community

    TCO17 India Regionals Registration Challenge


    The challenge is finished.
    Show Deadlines icon-arrow-up

    Challenge Overview

    Note :: This is a fun challenge. No prizes will be awarded for completing this challenge

    Welcome to TCO17 India Regionals Registration Challenge

    TCO17 India Regionals is back again. Here is your chance to grab a Ticket.
    All you have to do is, solve this simple challenge, you are on the way to the TCO17 India Regionals.


    This is a simple challenge to be solved.

    You have to proceed with following 5 steps and submit your output:

    1) Note down your topcoder handle.

    2) Append a random number to the handle.

    3) Generate a SHA256 Hash Digest from the string generated. 

    4) Convert the generated Hash Digest into Hexadecimal (You may use: http://www.xorbin.com/tools/sha256-hash-calculator )

    5) Check if the Hash Digest starts with a digit and not a alphabet. If the first character is not a digit then continue again from step 2, selecting another random number.



    Let’s say your handle is “TCOIndia”

    1. Append a random number 11738, the new string is “TCOIndia11738”

    2. http://www.xorbin.com/tools/sha256-hash-calculator

    3. SHA256 Digest Hexa Decimal  is “14761bd9ab22d34deb4a3d070f5f17fa26e81b47b02a5b226b2fd440df51b655”

    4. Yes starts with a digit, save the random number

    Final Submission Guidelines

    Submit the following three things in a text file:
    -Your Topcoder Username
    -Random Number Appended to Handle

    -SHA256 Digest Hexa Decimal

    For example:



    Reliability Rating and Bonus

    For challenges that have a reliability bonus, the bonus depends on the reliability rating at the moment of registration for that project. A participant with no previous projects is considered to have no reliability rating, and therefore gets no bonus. Reliability bonus does not apply to Digital Run winnings. Since reliability rating is based on the past 15 projects, it can only have 15 discrete values.
    Read more.


    2017 TopCoder(R) Open


    Final Review:

    Community Review Board


    User Sign-Off


    Review Scorecard