xen's blog

By xen, 7 years ago, translation, In English

Hello, fellow programming contest enthusiasts!

We are pleased to invite you to take part in the forthcoming Codeforces Round #426, which is going to be held at Sunday, 17:35 MSK. In case one of the things you fear most is a Codeforces round being authored by a purple guy, we've got some badgood news for you: this round will feature two CMs – me (xen) and GreenGrape – as its writers!

The classic Codeforces rules will be applied to this round. There will be five problems for each division, with three of them shared by both. The round will last for two hours. Forgoing a long-standing Codeforces tradition, we will not have the scoring disclosed until shortly before the contest.

In this round, you are going to assist Slastyona the Sweetmaid – a renowned lover of sweets, cupcakes, candies and all other kinds of confectionery! In her everyday life, Slastyona often faces challenging problems, some of which cannot be solved without your help.

Kudos to our testers: Kirill Seemann Simonov, Evgeny rek Tushkanov, Yegor Voudy Spirin, Evgeny WHITE2302 Belykh, Vladislav winger Isenbaev and Alexander AlexFetisov Fetisov. We would also like to thank Arthur tunyash Riazanov for his ideas on some of the problems. Thanks to the Codeforces coordinator Nikolay KAN Kalinin for his assistance in making this round happen (and for his patience, too), and, of course, to the one and only Mike MikeMirzayanov Mirzayanov for creating the magnificent Codeforces and Polygon!

You may ask: “Is it rated?” Well, for what's it worth, it seems it is, since we've commited all our passion and efforts to prevent the contrary :)

In any case, we wish you luck/bugfree code/high rating/whatever and hope that solving our problems would be a great pastime for you on this lovely Sunday evening.

UPD. The scoring is:
Div. 1: 500 – 1250 – 1500 – 2250 – 2500
Div. 2: 500 – 1000 – 1500 – 2250 – 2500

UPD 2. Our congratulations to the winners!

Div. 1:

  1. Radewoosh
  2. LHiC
  3. VivaciousAubergine
  4. SanSiroWaltz
  5. W4yneb0t

Div. 2:

  1. nguyenthibanh
  2. ColdSu
  3. LLX
  4. EnjoyCallen
  5. pr3pony

UPD 3. Editorial

artwork by Ilya Shapovalov

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By xen, history, 8 years ago, translation, In English

Hello, Codeforces!

Two months ago, I created a certain utility that I'd like to share with you. As noted in the title of the topic, its main purpose is to evaluate your solution on a set of tests. It is likely (and I'm really sure of it) that there exist similar utilities that are capable of doing the same thing or even more, but my primary intent was to implement something lightweight and cross-platform.

Here is the utility (Github link).

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