I do not trust that this problem can be solved during contest!
Because it demand big amount of tehnical work such
as grammar analysis, string manipulations and sorting.

you're kidding right?
I think it can be done in less than an hour, it's no big deal the parsing and string manipulation.

Did you have some tests that failed you program?
I think mine is ok, but WA9! A lot of time
wasted to find a mistake... With no result. Maybe some tricky tests?...

Edited by author 24.04.2007 23:29

Sure, for a competent programmer it is possible to hack it in an hour, but since it is for a school contest, I do not expect many teams to be able to solve it.

Moderators, do we have the statistics the real contest it was taken from?