Running time

[john_jones]

I noticed that all the solutions got "Time Limit Exceeded" has a running time of -1.00. But some days ago(maybe yesterday), I can see the running time actually if the running time doesn't exceed 2*(time_limit).
Could some one tell me the reason?

[Adrian_Kosowski]

I noticed that all the solutions got "Time Limit Exceeded" has a running time of -1.00. But some days ago(maybe yesterday), I can see the running time actually if the running time doesn't exceed 2*(time_limit).
Could some one tell me the reason?

I suppose you mean the data displayed in the "signedlist"? Let's say that the previous state of affairs was not really intentional .

So, programs are still run as before (killed after approx. 2*tl), and problem-setters can make use of this in special judges, but this behaviour is liable to change and should not be relied upon.