Posts by accounts anything less than IGM = Instant downvote //CF policy

I wouldn't call this spam, but up to you if you want to downvote it. Reaching LGM is a pretty big accomplishment compared to reaching purple. Also, Geothermal is a pretty significant member of our community (not saying SlavicG isn't), as he has hosted several round discussion livestreams and been part of some livestreams such as the unofficial CodeJam stream I hosted a while ago.

I'm guessing your either mesanu or SlavicG due to how you instantly recalled the incident and obviously because your hiding behind an alt?

I'm making a lot of progress. A couple more solid contests and I'll be there :P

The rise of a new copypasta

I understand where you came from, but this is totally related to CP.

I remembered you as "speed solve god", because you are usually on top standings in Div2 Div3 rounds xD

Congrats on reaching LGM!

I hadn’t looked at D before solving ABCE, so finishing E at 1:22 left me with a little under 40 minutes to work on D. I realized fairly quickly that the problem was going to involve some variety of tree DP—I had thought for a few minutes about looking for an invariant, but that didn’t make sense partly because as you remove edges from the tree, it’s unlikely that any property will remain an invariant, and partly because it’s possible to turn a tree on which the problem can be solved into a tree on which the problem cannot be solved if you choose the wrong operation. I considered a couple DPs before locking onto the solution I implemented; I wasn’t fully confident that my idea was right, but I figured it was the best I could do with the time I had.

I implemented my idea fairly quickly, but then, as I checked the output format to see whether I needed to print yes/no in uppercase or lowercase, I saw that I had to actually reconstruct the solution if one existed. At that point, I thought pretty seriously about giving up; I had only ten minutes left (and still hadn’t even tested my solution’s yes/no answers). I eventually gave it a try and was ready to start testing with four minutes or so left. I got the first of the five sample cases wrong (I had an error in my initial DP, then an RTE in my reconstruction code), and by the time I finished debugging, the clock was down to around fifteen seconds. I realized that there was no time to try the other sample test cases, so I just sent in my solution, figuring that it wouldn’t get AC. Naturally, I was pretty shocked when it ended up working!