External Contest.. copying of codes allowed?

External Contest: http://www.codechef.com/MTHX2015/

in this particular problem: http://www.codechef.com/MTHX2015/problems/CHOCS



will CodeChef admin deal with this problem? or not because it is an external contest?
and if admin will deal with it, what will he do?

the final decision on plagiarism cases in external contests is generally in the hands of the contest organisers.

you can mail them about this.