On yesterday's ABC363, SH00QiNan got the first place in a very-very short time. It's a new account and never competed before. Also, there's a CF account named SH00QiNan, which is also a completely new account.
Some of the gossips I heard as this account is controlled by six China NOI Silver player. (I don't believe) But even six best player can't solve problem so fast, I think.
It's Affiliation is QFLS. I'm not sure what QFLS is, but I am in Changsha, Hunan, China, and there is a school named Qingzhuhu Foreign Language School, but it's a nine-year-school (which means the students are 6~15 yo)
What do you know about this account, and what do you think?
Purr, out Tourist and JiangLY! The 1st place is stolen by this account!
Auto comment: topic has been updated by Amao_Fox (previous revision, new revision, compare).
Their order of answering questions is very suspicious, and it seems that each question takes about the same amount of time to solve, about 2-3 to 4 minutes. I think this strange result is a bit difficult for both humans and AI to achieve.
Maybe the problems were leaked?
A quick skim through the submissions shows at least three code styles (one with the comment on the top, one who uses
#define LL int, and one who usestypedef long long ll).I don't think it's impossible. If you give each person 1 problem each (except one doing A and B), ~21 minutes (the maximum time the account took for a problem) sounds doable.