Decentralized Hackerrank:

• Submitting contract byte code to a Tester contract which validates whether your code passes the tests
• You can build reputation by solving these challenges
• Your code needs to adhere to the interface of the challege
• The incentive structure: you pay per submission and then the winner gets the total of all those submissions

Example challenge:

Write an implementation of an adder function according to this interface:

contract Adder { function add(uint a, uint b) returns (uint){} }

Then you send a transaction with the compiled version of your implementation and we execute it. You receive pass/fail as a boolean from a TestPass event.

TODO:

• Makefile
• More challenges, better UI
• Come up with a good testing strategy for the web application part
• Resolve front running with hash based reservation
• Figure out how to self destruct the submission contract after it gets tested so we dont just fill up the chain with submission contracts
• Reputation system
• A feature could be users can actually create their own challenges

Notes

• Obviously creating an entire contract for each submission is not scalable - some way to make use of plasma here?
• ganache-cli does not seem to be able to handle selfdestructing a contract created with the create assembly code. Exact same code works fine in the remix IDE, not sure why.