Following is mention in the “How to participate?” section of the contest page:
- CodeChef API access and documentation will be launched on 27th August, along with the problem statement.
My question is whether we will be getting a specified problem which we have to solve/code or can we implement/code our own idea?
This may not be an appropriate answer to your question. I have to be purposely vague 
“The CodeChef API will be launched when the contest starts, along with more details about the competition.”
Keep brewing up your ideas. \m/ wink
Thank you. I hope this hackathon provides us with a platform to implement these ideas we are brewing up 