Comments

I bet the hacking phase will be awesome!

Spoiler

GL & HF!

-14

Queueforces during the contest again... and again...

+2

Seriously?

Bad timing.

btw, Tsinghua round again :(

C is funny!

Please do not leak the problem statements like Tsinghua University did...

From the scoring distribution perspective, why does it feel easier to get into div1 than div2?

Good timing!