There is a bug in July Cook-Off rank list (http://www.codechef.com/rankings/COOK48). Look at the submission time of the user uj2295. His submission time is a negative number. Probably this is due to overflow in time. Also he has submitted his 2nd question after 3 hours. So he cannot be a top ranker among participants who solved at most 2 questions.
This error affects many programmers as due to this bug, ranks of many programmers is shifted downwards by 1. Rectifying this bug will not affect my rank as I have solved 3, but I want this bug to be fixed soon for the sake of other affected competitors.
Here is the screenshot: