A reminder that online qualification for 0x10 Challenge 24 is approaching. So far only 10 teams are Ready for EC.
Registration Deadline: April 29th, 2016, Friday CEST 20:00
Electronic Contest: April 30th, 2016, Saturday CEST 10:00-14:00
Registration link — http://ch24.org/team/register.html
Qualification Standings — http://ch24.org/team/list.html
Country representation in TOP 30:
27 
15 
8 
7 
6 
3 
P.S. If you are considering to downvote — I have nothing to do with the problems!!
While registration ends in about 3 hours, I'm looking for a violet+ team.
GUYS YOU ARE THE WORST CONTEST AUTHORS EVER THANKS
+100500
Unfortunately, they won't understand this sentence.
Try rearranging words randomly, removing some of them and adding completely unrelated ones.
What's wrong with B (-1 gets 100 on all tests) testing and all these silent rejudges?
Admins said that most likely this problem will be removed
Challenge 24! The contest where authors have to write problem statements in 24 seconds!
It was as bad as one year ago. I'm not able to imagine how you could think those problems are ok. Has anybody read the statements after someone has created them?
I don't agree that it was as bad as one year ago. Actually it was even worse :)
Here is a story which describes this contest perfectly: we submitted an answer to a test for D, we got WA, we submitted new answer, it gets AC, then they change tests, now our AC answer is WA (and we lost points for it) and our old WA answer is marked as correct in list of obsolete submissions. Now if we are trying to submit it again in order to get points for that test (and to make it marked green in submission matrix), we are only receiving notification that we already solved this test so we can't submit it again :)
We had the same problem. Jury answered us that they would reevaluate after the contest all D submissions.
Have they updated real scores for A, C, D?
This is very interesting contest, but I don't think this is programming. Pictures tasks are something like count by hand :)
Also, If someone can explane me text of B task, It would be really great :)
Summary of the contest:
I found 9..
"We have wrong checker. This picture submissions will be reevaluated."
Am I the only one who liked the image problems? We solved 19/20 tests in C + D by eyes =) (If tests were not wrong, we would have enough time to solve all)
B+C? Do you maybe mean C+D? Fine puzzles but why would they give them in a programming competition?
While we actually coded a solution to a problem about underground (after spending a lot of time on getting proper interpretation of task itself :) ), problem about coins looks weird.
I don't think a lot of teams did some coding in order to solve this problem, and it doesn't sound like a programming contest then. I enjoyed the trick with coins being mirrored etc., but generally it looked like "n coins gives wrong answer, maybe one of them is somehow bad, let's submit n-1", and this story describes a situation well :)
To me it makes more sense to give such task with much higher constraints and approximate solution required) So either you have hard time counting all these coins by hand — a hundreds of them, not just a dozen, or you actually write some code or use some specific tool.
Last year there was an approximate problem with counting number of pop corn given sound. Everyone solved it with random guesses =)