Hi! This is not a question but a suggestion.
It’s sometimes quite difficult to read and interpret mathematical formulas which are given in the problem statements. I don’t know if any one has made any request for this feature in codechef. But I think that adding latex style math symbols and formulas will greatly enhance readability.
There are libraries for this and one such open-source javascript library is mathjax: link: here which can be used.
I would love to see this feature added to codechef as it will make it even better than it already is 
Regards