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

Debugging Help
#1

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?

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

#2

See stress testing.

#3

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

#4

There’s a model solution.