Should I spend my time trying to fix a single testcase?

It’s probably a small error somewhere in my code, but I’m not sure how long it’ll take to fix it. It is worth the effort?

Problem link: http://www.usaco.org/index.php?page=viewproblem2&cpid=208#

See stress testing.

Well that only works if you have another method for solving the same problem…

There’s a model solution.