In the recent Div. 4 contest, I only solved two problems. Back then, I set a goal to solve three problems in the next Div. 1+2 contest. Many people mocked me, thinking it was impossible for me to solve three problems, but I did it! I spent about half an hour thinking about problem A and solved it, then another half hour on problem B. Surprisingly, problem D turned out to be so straightforward! I noticed that the XOR value of $$$x$$$ and $$$x+y$$$ remains constant. Based on this insight, I wrote the code and passed D on the first try. I truly succeeded! I hope that in the next Div. 2 contest, I can solve all four problems A, B, C, and D!
Please congratulate me!
Additionally, I hope that Luogu can unblock my account.
Bro, you are genius, gratz, I would never come to this statements ever, great approach using XOR, but moreover finding that an operation just make two copies of the x and x+y is brilliant, after one operation x can be only x or x+1(one of those are off, which mean one is on, and this one will strightforward lead us to the gold), and x+y have also two state after one operation (x,y) = > x+y , (x,y+1) => x+y+1 , (x+1,y−1) => x+1+y-1=>x+y and (x+1,y) => x+y+1 where we have x+y+1 and x+y(the same approach can lead us to the gold, just gonna find that one imposter which is off or on). It's hard to expain thoughts not in your native languege, I guess you got the point
I didn't mean to confirm him as a legit user, but the hint in the blog helped me solve the problem I was struggling with. It's just nice to have different explanations for solving a problem.
Amao_Fox chen_zhe
Please unbanned my luogu account! I really solve 3 problems in Div.1+2.
chen_zhe I have nothing to say.
by using AI?
have a look at this.
I guess this is perfectly useless. Admins in other online judge wouldn't mind your personal bets.
I dont think a guy who only solved 3 problems in Div.1+2 can work out 1200+ *2700 problems by himself.
Bro, it's just, so obvious.
https://codeforces.me/blog/entry/141935#comment-1267519
I will watch you in the following Codeforces Round 1019, and if you can't solve A, B, C and D, we're really going to completely mock you.
I am personally more compassionate and have some hope for you. If you can really solve these four problems on your own, I won't criticize you anymore. But if you are still skipped (or you can't solve them), I guess I don't need to waste my words on you.
Please, be wise.
Sorry i forget to participate the contest. I'll solve 4 problems in next div.3 and 5 problems in next div2. WAIT AND SEE.
I think 5 problems in div.2 is 5 times harder than 4 problems in div.3.
WAIT AND SEE. WAIT AND SEE. WAIT AND SEE. WAIT AND SEE.
What the sigma
bro he really did solve 4 problems in Div.3
there's a chance he cheated though
there's still a div.2
Congratulations to zhoujiarun0216 and zh0ujiarunO216 for using LLM to solve 4 problems in today's competition and became a very strong $$$\color{green}{\texttt{Pupil}}$$$! I believe you have such strength and will definitely become an $$$\color{blue}{\texttt{Expert}}$$$ by solving 5 problems in tomorrow's div.2 using the same method!