Recently, in Codeforces Round 677 (Div. 3) I made a lot of hacks on problem F, and naturally, several users contacted me asking for the testcase I used. The problem is that even if I wanted to, I couldn't reply to all of them quickly, because CF imposes a limit of sending a message to 2 distinct users per hour, and even that seems to be implemented incorrectly, as I could only send one reply to one user, even though I only replied to two of them in total.
Can someone from CF HQ check whether this is implemented correctly and, if possible, implement a feature where message replies don't count towards the 2 persons per hour limit.
Yeah, sometimes it's very frustrating.
Yeah man I am so frustrated like i devote 5-10 hours to Cp in a week and I have been doing this for almost 9 months now but I was unable to solve DIV3B today.
Devote 5-10 hours every day and see the difference.
Bhai itna time nahi hai nowadays I am hearing CP is useless anyway so it is not a good use of time.
grapes are sour...
Salle tameez se
I would recommend you to first learn manners and only then try to learn CP. It might be a reason of your constant failure. Even after that if you can't improve, then I guess you just suck at CP. Quit it and find something else "less useless" to you.
Is there really such a feature? I just sent 3 messages to 3 different people within seconds of each other.
Sir I messaged u. No reply?
Is he obliged to reply to you? I know it's not my business but it's not your business either. Its upto him to reply to you or not. By the way, you have an amazing contribution on CF.
Same. There was a day where I had 10 messages. When I opened CF messages, I was able to reply to 5 of them in the first 10 minutes then the other 5.
It is only implemented during a contest I guess. Since hacking phase is a part of the contest, hence the restriction.
There are restrictions on how many people you can send msgs in an hr/day/month. But limit varies from person to person. No one knows how it is decided. See
There are hidden limits for the number of messages sent and distinct recipients. In the past I hit "msgs per 5 minutes" and "recipients per 24 hours". As Mike once told me, the limit "is much greater [...] for high-rated accounts".
Maybe a good fix is not to count replies. After somebody writes to me, my first message to them shouldn't be counted towards any limit.
All of this makes sense except that the OP has a very high rating.
Maybe he's treated as non-rated because he didn't participate for 6 months?