On Thu, Apr 13, 2017 at 8:56 PM, eatmore <[email protected]> wrote:

> A better idea is to insert sample test cases at random places within a
> test, then reject the submission if the answers for these cases are
> incorrect. This makes it pretty much impossible to submit a wrong output
> file by mistake.
>
> This is what Hacker Cup seems to be doing, very good thing to prevent
> mistakes like this [1].
>
> [1] http://codeforces.com/blog/entry/16002


Notice that this option would also catch bugs that it shouldn't, such as
problems with cleaning up memory between cases, or some strange overflows
altering the behavior of all following cases that usually don't happen in
samples because they are small.

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