Hello, Codeforces!
Unfortunately, today unexpectedly some errors occurred on the servers that we restarted before the round. We couldn't resolve them within 30 minutes. Half of the servers continue to work steadily.
I don't want to risk hosting the round. A round preparation includes too much collaboration between the authors, coordinator, and testers. I have made the decision to postpone the round so that we can hold it in the future with confidence that everything will be fine.
I apologize for the inconvenience. Today I will delve into what is happening and figure it out. There is no reason to think that something will not work for tomorrow's round.
We will announce the new date for Round 875 later.
Apologies again for the inconvenience, Mike
UPD: The round is rescheduled on May/28/2023 17:35 (Moscow time).
sad
Better this than having a contest become unrated because of technical issues, though.
yeah
You are right.I hate a terrible round.
No worries. We can give Leetcode this time.
Yeah, I hacked CF servers so that we can all participate in LC contest!
haha
Some Men Just Want to Watch the World Solve Leetcode
No, I wanna solve it myself :D
Why CF and not LC :) ?
LC has super consistent schedule for several years, I don't want to disturbe it)
What was your approach for problem D in LC Biweekly?
I did prime factorisation of every array element and then stored the indices of those prime numbers, then for every prime number connected those indices using a dummy node and finally running bfs to check if it's a connected component or not.
I did the prime factorisation for each element too but wdym by storing the indices like you stored the indices for the prime numbers as ith num[i], can you elaborate and the dummy node idea have you encountered something like that before in a problem?
Friendly Spiders in some Contest ,exact similar problem
using dummy node is a technique when you want to connect all the nodes together without running o(n^2) loop, so what we do is we take a dummy node and connect all the nodes to it, in this way all the nodes are connected together.
Wow this idea is very similar to something like this
https://mirror.codeforces.com/blog/entry/54310?#comment-731059
Thankyou so much for sharing the idea!
what was your runtime?
1440ms, i used sets to store primes i think i can reduce my runtime if i try some simple data structures
i ran sieve till 1e5 and gave tle ran it after the contest till max element got runtime of 900 ms . i dont know how it works but ok
what do you mean you don't know how it works?? isn'it quite obvious running till 1e5 loop everytime for every testcase is for sure tle bruh!
LC doesnt have multiple testcase so why bother :)
Prime factorization + dsu.
Leetcode then!
PLEASE reschedule it on another weekend :prayge:
Yes I waited so long for this. Would get mad if this becomes a weekdays contest.
Sad to hear this message, hope recovering soon
It seems that you want to become orange as soon as possible!
right
Same head, cool
If it's possible, please plan the postponed round at one of the weekend evenings also.
Great decision, then I might continue watching Star Wars.
I hope the competition can be as close as possible to now, because I have final exams coming up later.
Star Wars?Can it get 45 pts with "puts("No");"?
They might have missed some authors name
Don't worry guys,we will be back with more authors
i know you
YouKn0wWho
I thought it got cancelled for leetcode btw love the dedication of codeforces for there participants. So many things they do just for nothing. I have never seen that much dedication in any other platform with fully free access.
It's sad but I believe it will be good to experience this contest in the future.
sooooooooooooo sad
Hopefully, I will reach expert whenever this round will be rescheduled in the future !
I hope they won't be back with more authors.
I don't like this:((
The most happiest person on earth: LC Biweekly Authors
I checked it and don't understand why they require almost passport data and apartment keys scan to register
It's not compulsory ! You can skip the part
What should happen for putting cf on normal servers?
Let’s see when it will be rescheduled
test
I was ready for it :(
you just ruined my saturday night plans. smh
people who only do leetcode will think why is todays competition so tough.(^_^)
Please reschedule it on a Saturday. I've been waiting for a div2 contest held in Saturday for a long time. Classes always prevent me from taking part in the contests held in other days.
No worries.I'll go to CrossFire this time.
RescheduleForces!
Hope as he said it that tomorrow all servers will be fine for the round.
Better if tomorrow contest will be rescheduled , so we can watch IPL final .
https://i.redd.it/4sbmquqwz2s61.jpg
No worries. Thanks for informing.
f***，i ride a bicycle so quickly to enter this contest. But it Rescheduled.
lol
sad
I hope to become Expert through this contest.sad
The fact that this post already have more upvotes than announcement of round itself is completely wrong
Why? round announcements are meant to be rated based on the quality of the round, not the text included in it. On the other hand, this blog post is meant to be rated based on the information it contains.
I mean, from logical point of view, you, of course, right, I just wanted to say that it's feels wrong that community appreciates post with rescheduling of a round more than a post about a round itself
It's wise to avoid risking hosting the round.While I may lose the chance to enjoy this round because of my schedule,a late round is better than a terrible one which make us all mad.
No worries. We can enjoy Genshin impact this time.
For me, the decision is absolutely ridiculous. Plz pardon my impoliteness.
You'd better give the message to us earlier.
We were told that Codeforces had some issues exactly 43 minutes before the round was supposed to start. I don't think we could have given the message earlier.
Why u so rude.
I don't think others can be aware that we already know each other...
i love you.you are so cute♡
lol
No worries. Chinese can sleep.
the CF start at Jun 3 should be Round 876?
May be it is better than happing problems during the contest.
Haven't solved a single problem for the last 7 weeks(ever since I got a job). Ready to get back to business and earn a negative delta now.
flex
So it began at tomorrow？
Going to sleep. Delay and delay, please tell me you need to cancel it early.
sad
Going to sleep
Was it rescheduled for tomorrow, same time?
bruh I almost got heart attack. I thought I was late for contest because some kind of "unusual hour" thing like I did about 1 month ago (V_V)
Today leetcode's last question was very similar to- Friendly spiders
i was very sad cause today i wouldn't be able to take part in this round but now i am very cause it will be tomorrow so i can join now
why did he only apologize to Mike?
Bruhh he is Mike. He's written his name in the end lol
Hope the problem can be resolved