Educational Codeforces Round 14

Правка en2, от Edvard, 2016-07-13 12:38:20

Hello, Codeforces!

Educational Codeforces Round 14 will take place on 13 July 2016 at 19:00 MSK for the first and the second divisions.

<I already have a long list of problems, so don't be upset if your problems wasn't used yet>

The round will be unrated for all users and it will be held with extented ACM ICPC rules. You will have two hours to solve six problems. After that you will have one day to hack any solution you want. You will have access to copy any solution and test it locally.

If you have ideas for some problems or maybe already prepared problems that you can't use in rounds or official competitions, you can write to me.

It seems that it is harder to invent interesting simple problems (like A and B) than difficult ones. So don't be afraid to suggest interesting simple or very simple tasks (of course the difficult tasks are also needed). Please send only the problems for which you know the solution with clear statement (the story is not required). And also please add one or two samples to make the problem statement more clear.

Thanks a lot to them and all others who are sending the problems! The number of unused problems are increasing. If I didn't miss anything I already replied to all who sent me the problems at least 5-6 days ago. Please be patient if your problem was not used a long while.

</I already have a long list of problems, so don't be upset if your problems wasn't used yet>

The problemset was suggested by Codeforces users. The problem А was suggested and prepared by user Arthur Jaworski KingArthur. The problem B was suggested by Nikita Melnikov nickmeller. The problem C was suggested by user blowUpTheStonySilence. The problem D and E was suggested by Zi Song Yeoh zscoder (he is on IMO now, so good luck to him). The problem F was suggested Michael Kirsche mkirsche.

As I said the problem A is prepared by Arthur Jaworski KingArthur. All other problems was prepared by me (Edvard Davtyan). Thanks to Tatiana Semyonova Tatiana_S for checking the English statements. The problems was tested by users suggested them, respectively: Arthur Jaworski KingArthur, Nikita Melnikov nickmeller, user blowUpTheStonySilence and Michael Kirsche mkirsche. Thanks a lot to all of them!

I hope you will enjoy the problems! I think the problemset is balanced and not difficult.

Good luck and have fun!

Теги education round 14, announcement

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  Rev. Язык Кто Когда Δ Комментарий
ru6 Русский Edvard 2016-07-18 01:10:13 78
en7 Английский Edvard 2016-07-18 01:09:35 80
en6 Английский Edvard 2016-07-16 14:38:58 125
ru5 Русский Edvard 2016-07-16 14:37:28 116
en5 Английский Edvard 2016-07-15 12:07:28 116
ru4 Русский Edvard 2016-07-15 12:06:44 116
ru3 Русский Edvard 2016-07-14 17:34:22 58
en4 Английский Edvard 2016-07-14 17:33:49 54
en3 Английский Edvard 2016-07-14 17:28:04 60
ru2 Русский Edvard 2016-07-14 17:27:31 56
en2 Английский Edvard 2016-07-13 12:38:20 29
en1 Английский Edvard 2016-07-13 02:22:30 2845 Initial revision for English translation
ru1 Русский Edvard 2016-07-13 02:06:26 3581 Первая редакция (опубликовано)