repeating's blog

By repeating, history, 5 weeks ago, In English,

Hi everyone

IOI17 is soon, have you all been preparing for it? I hope for all of you the best of luck in the competition.

I thought we could do something special this year. So how about we exchange our national olympiads T-shirts at IOI (local ones)? It would be a nice way to collect souvenirs.

If we decide on doing that, we need to know beforehand who's participating to decide what amount of t-shirts to bring.

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By repeating, history, 2 months ago, In English,

Hello everyone

I'm wondering how to find the number of distinct shortest paths in an undirected unweighted graph !!

any advice !! :D

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By repeating, history, 2 months ago, In English,

Hi

These are some problems about Centroid Decomposition , you can learn this algorithm here .

Its complexity is O(nlogn)

I hope these problems would be useful for you :)

If there are another problems on CF please put it on comment !!

UPD : The list has been updated

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By repeating, history, 2 months ago, In English,

Today worse was beaten by Mhammad1 !!

The last record for the maximum rating change ever was 644 by worse , but today Mhammad1 has beaten this record with a record of 803

Congratulations for Mhammad1 :D

UPD : kingofnumbers has just became one of the top 10 contributors

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By repeating, history, 2 months ago, In English,

APIO 2017 results had been announced here

Congrats for everybody !

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By repeating, history, 4 months ago, In English,

Hello everybody

Recently I learned a new algorithm which is Centeroid decomposition , but I didn't find enough Information about it.

I didn't understand the usefulness of the algorithm , or when we use it !!

So would you please help and give me more information about it :D

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By repeating, history, 4 months ago, In English,

Hello everybody

Recently I have been searching for an online judge contains APIO problems , but I didn't find any thing !!

So could anybody help me and give an online judge contains APIO problems with subtasks judging.

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By repeating, history, 5 months ago, In English,

Hello everybody

In the last 3 days , CF doesn't allow me to enter the status pages other than the first.

Anyone else is facing the same problem ?

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By repeating, history, 6 months ago, In English,

Hello everybody

Everyone are wondering about the story behind "Limak , the little polar bear".

Too many statements talking about Limak , here , here , here and even on CodeChef

So would anyone tell us about the story behind this famous polar bear

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By repeating, history, 6 months ago, In English,

Hello everyone

Recently I have invented some interesting problems (A->D div2), and I'm wondering which online judges can I give the problems to and what can they offer to me.

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By repeating, history, 6 months ago, In English,

That moment when CF has too much drugs

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By repeating, history, 6 months ago, In English,

Hi everybody,

A few days a ago my friend suggested that I should start training using CMS that way I can have the test cases and the ability to judge solutions without the use of the internet (being in Syria makes the internet a luxury so I can't use that whenever I want) so I want to start using CMS by downloading the test cases and the problems but I have no idea how to do that.

I tried to google it but to no avail...it would be very nice if someone who uses CMS could show me how to set it up.

Thank you for reading...

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By repeating, history, 7 months ago, In English,

Hello

Today I tried to solve problem 327E - Axis Walking , but I faced a problem with Time_limit

I kept getting TLE on tests between 7->10 , then I submitted my friend's solution 24099917 which got ACC

but I got TLE on test 11 24109427 , and when I test it on CUSTOM INVOCATION it pass the test with 1372 MS

P.S.:the problem time_limit is 3000 MS

So can anybody help me and tell me the reason of getting TLE

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By repeating, history, 7 months ago, In English,

Today I noticed that CF doesn't show you the recent blogs when you are logged in your account

These two pics for the recent actions and took at same moment

the first when I'm logged in my account , and the second when I'm not

these two blogs didn't appear in the first situation

who else faced the same problem ??

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By repeating, history, 8 months ago, In English,

That moment when CF gets too much drugs

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By repeating, history, 9 months ago, In English,

Codeforces rounds had returned :D

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By repeating, history, 10 months ago, In English,

Hello codeforces.

Today's a Palindrome.

6.10.2016 :D

The legend say that training at the palindromic days is more effective.

train more :3

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By repeating, history, 11 months ago, In English,

Hello everybody

I have been searching for online judges which works with subtasks system.

would you help and give me websites like that !! ^_^

thanks everybody :D

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By repeating, history, 12 months ago, In English,

Hello guys . I have an issue in dealing with problemes which depend on geometry and math . can you help by give me books or any thing which includes the basic mathematical laws that can help me in math and geometry problems . :D :D :D
Thanks for advice

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