I'm really sad...
My in-contest submission 7393683 got TLE at the last case...
However after contest, I got AC with both Java 6 7401778 & Java 7 7401776 ...
And still can't pass with Java 8 7401789(I have add a comment to make difference) ...
Anyone know more?
Exactly opposite
T^T Before your post, I changed my JDK to Java 6.
Now I think C++ maybe the final selection...
why not Java 7?