June 27 is an important date – that’s when the test round of Yandex.Algorithm kicks off. Don’t miss your chance to register, so you can be in the running for a place in the final round, which takes place on August 21-23, 2013 in St. Petersburg. The final round venue is truly unusual for such an IT event – the palace of Grand Duke Vladimir, built in 1870, will welcome finalists with all its historical charm.
In the final round, the best participants will be left one-on-one with the testing system – no internet connection or prewritten code, only properly set-up computers and IDEs. We will provide text coverage of the round.
If you want to be part of the action, don’t leave your registration to the last minute – remember, the test round starts tomorrow.
More good news: we decided to almost double the number of T-shirts. The best 75 non-finalists among participants of the elimination stage, another 75 random participants of the elimination stage who successfully submit a correct solution to at least one problem and, of course, all finalists will receive an exclusive Yandex.Algorithm T-shirt.
UPD: The test round is available for participants now: http://algorithm.contest.yandex.com/contest/306.
Current standings are open for everyone: http://algorithm.contest.yandex.com/contest/306/standings.
UPD2: Official results are avaliable on the official website
UPD3: Round archive is avaliable at the official website
is this contest for Russian only ?
Not at all, statements and the official web site are avaliable in English as well. You can switch the language using button on the bottom of any page of official website or during the registration process.
I think I'm encountering 404…
I am very glad to see that organizers decided to provide more T-shirts as prizes. I think it will greatly enhance the enthusiasm of contestants.
registration page is in russian .......how .i can register and there is no link..4 english ver
Here
thanks...
Where is the contest link?
http://algorithm.contest.yandex.com/
You mean contest will be held on this link??
I believe it will be held here on Codeforces but I'm not 100% sure because it doesn't mention anything on their website.
It's been updated here's the link. http://algorithm.contest.yandex.com/contest/306/
thank you!
2337 submission for problem A only 109 got Accepted !!!
most people had precision errors
even I used a user-defined function for comparing that didn't work
Maybe someone could comment how to solve A? Especially those, who got it right at the first attempt.
, so you can just compute fractions with integer numerators and denominators and find the fraction with the most occurrences in the multiset. (I've got it right at the second attempt, but only because I used stdin/stdout instead of files in my first submission).
do you mean R=(abc)/(4*S) or R=(4*abc)/(S)
Of course , it was a small typo.
you didn't fix the other fraction in your comment :)
It does not matter for solving :)
actually yes it's like you multiplied all fractions with 16
a and b and c themselves may not be integers how can we save the numerator in integer variable ?
Edit: oops got it now , also S may not be integer but 16*S is always an integer
a2 = (x2 - x1)2 + (y2 - y1)2, and so on. (2S)2 = ((x1 - x0)·(y2 - y0) + (x2 - x0)·(y1 - y0))2.
But numerator's maximum value can be (1400)^6 which will cause overflow even for unsigned long long int. How to store the value?
2^63 is around 9*10^18
1400^6 is around 7*10^18
Can i have the test case 9 for problem A?
Tests are usually not disclosed in this type of competitions. It decreases motivation to prove your theoretical solution and test/debug your code.
We decided to publish the competition archive, you can find it at the competition site
how to solve D?
div1 or div2 ? XD
only joking
Seems that my code will describe my solution much better than me.
Will there be an editorial for this contest?
Yes, there will be.
Hi
I'm advanced, but can I participate in the Qualification round?
Yes, you can
seems awesome but what is Yandex
It's the 4th largest search engine in the world, surpassing Bing recently by the number of searches and succesfully competing with Google in Russia for many years. You can read more here and here and here
Problem E: submitted a program that outputs nothing.
Accepted.