Hi, Codeforces Community!
Codefest'18 — a diverse roster of high-quality programming competitions by Department of Computer Science and Engineering, IIT Varanasi is excited to present Mathmania.
Mathmania is a mathematical puzzle contest where a sound knowledge of mathematics together with computational thinking will be essential to solve problems. The motivation behind Mathmania is to provide a platform for the inquiring mind to dwelve into unfamiliar areas and learn new concepts in an exciting way.
The contest will take place at Topcoder. This contest will be an individual event with a duration of 3 hours, from Sep/1/2018 12:30 UTC. The contest will be unrated for both Div1 and Div2 participants but will be a long match which will consist of interesting mathematical challenges covering almost all domains of Mathematics, ranging from Number Theory, Algebra, Geometry, etc.
The contest has been prepared by iit_sujal, GT_18, Enigma27, vinayjaisinghani and hitman623.
Prizes -
1st Place : $200
2nd Place : $150
3rd Place : $75
Best ranking member in India: $75
Topcoder- Mathmania T-Shirts for top 30 participants.
Best two freshers/sophomores from IIT (BHU) will also receive T-Shirts.
Registration:
Go to Topcoder Arena – arena.topcoder.com(Beta) or setup Topcoder Java Applet*, you will be able to register for the contest.
*In Topcoder Java Applet – you can find the contest listing in Active Contest Tab
Have questions? Email support@topcoder.com
Never Competed in a Topcoder Contest: See this to understand Topcoder Contests better!
UPD : The contest starts in an hour.
UPD : Hope you enjoyed the contest. We apologise for the technical issues you faced during the contest. For all those whose efforts went in vain in the 600 points problem, don't worry we have a consolation prize for you.
UPD : The editorial is published here. Solutions for last 3 problems will be added soon.
UPD : The editorial is complete. Feel free to discuss anything in the comments.
Auto comment: topic has been updated by hitman623 (previous revision, new revision, compare).
Hi, is it going to consist of programming problems, or output only problems?
Almost all of them are coding problems.
Submissions are in text or a coding language
Coding language
penalty for WA?
No. It is same as usual SRM.
Can you reschedule the contest? It clashes with AtCoder (which has had its contest announced for a long time)? :(
When the time was decided, AtCoder contest was not scheduled actually and at night a contest on codechef was scheduled. And it will be really tough to reschedule it now.
Auto comment: topic has been updated by hitman623 (previous revision, new revision, compare).
Cannot login to the web-based arena
Is topcoder down? Nothing seems to be loading.
Is it good now? — We were in the process of fixing 800 problem. If you were logged out! Please re-login and you would be able to compete!
Sorry for the trouble caused!
It's stuck with the following message:
Completing login... One moment please...
Try incognito! Will work!
still facing a problem
Same thing happens in Incognito.
Very Sorry! :( Do you have the java installed in your system. Take 5 mins and setup the java applet. http://topcodr.co/SRMGuide
I am not sure, but I believe that in this case java-applet also shouldn't work, because problem is in login time out. It should be a server-side issue so client (website or applet) doesn't matter here.
It seems, that I am wrong. I successfully logged in with java-applet. Pretty strange.
i m still facing problem in ur java applet... it shows ur login timed out
Try using it with a direct connection! Non — Proxy one!
yes i try with direct connection....bt it still shows login timed out
please tell....how i remove that error ur login request timed out....
I had made an account using gmail login, so I do not have any password, how can I login through applet?
Really good problem set.....enjoyed solving those problems. Well done problem setters!
hmehta It would be great if Topcoder can support Python 3 as well.
It is already supported.
isnt 800 just solving AGP and GP sums of matrices(in a similar way to binary exponentation) ?
Also is there any fermat's little theorem for matrices?? (otherwise arent the contraints harsh for someone using c++ without Big Int).
Auto comment: topic has been updated by hitman623 (previous revision, new revision, compare).
I got logged out of the arena at around 6:40 and was unable to login again during the entire contest :(
I had the same problem, I had done the first three, third couldn't be submitted :( But the problems seemed nice
Explanation for 500 and 800?
The editorial is published. You can see it here.
What happened to 600?
The last sample output in the 600 is wrong.
I'm curious if those who submitted expect their solutions to be fast enough. My implementation was far too slow (38s on my machine) so I didn't submit, but it doesn't look significantly different to what tourist and uwi submitted.
Auto comment: topic has been updated by hitman623 (previous revision, new revision, compare).
Auto comment: topic has been updated by hitman623 (previous revision, new revision, compare).