Well, i have NZEC problem again.This time on this problem spoj.pl/problems/SCUBADIV/
removed
You may try some "try ... except"-clauses to localize the part of your code that produces the NZEC.
OK, now i localized problem. Problem is input of nit, oxy and n. But i do not know what to do.
i tried using sys.stdin.readline()[:-1], that failed too.