Why is my problem hidden?

[salil03]

My problem: https://www.spoj.com/problems/MOMOS/ has been hidden without giving any reason or comment. The formatting is correct and the testcases are also correct. The problem was hidden as soon as it was published. Please make it public soon or provide a reason for hiding it.

Thanks and regards

[simes]

I can’t answer your question.

I believe there is a fault (or perhaps it’s bad design?) that means comments are deleted when a problem is hidden. So even if the hider did leave a comment, it would have been deleted.

You may get an answer if you email the admins on contact@spoj.com, but it’s not likely to be a quick one.

Edit: I see it’s now visible again - did you find out a reason, or who was responsible?

[salil03]

I had not set the “Placement in main problemset:” Not setting this causes the problem to be hidden.

[simes]

Aha! an own goal then.

[salil03]

Couldn’t put it better myself