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kristevalex's blog

By kristevalex, history, 21 month(s) ago, In English

Many problem in problemset have tags that don't have anything to do with the problem, this is rather annoying, especially if you are trying to find problems for a specific topic. As far as I know anyone who solve a problem can edit the tag, which basicly means that anyone can copy someone submission, and edit the tags. For the problem 1713D - Tournament Countdown form the most recent div2 round induk_v_tsiane has been repeatedly deleting tag 2-sat, and someone adding it back.

Also it seems that solution for this issue is not that hard to implement: either a minimum rating to be able to edit the tag, or leave it just for problemsetters.

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By kristevalex, history, 5 years ago, In English
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By kristevalex, 6 years ago, translation, In English

I would like to invite you to participate in the rated Codeforces Round #518. Date and time of the round: Wednesday, October 24, 2018 at 18:05. The round was postponed from October 23 to October 24 because of the ICPC Indian Online Qualifier.

This is the first competition I proposed. I hope you will enjoy it.

The round will have 6 tasks for the second division and 5 tasks for first (3 problems are common). The contest will last for 2 hours.

Tasks for you were prepared by Alexey kristevalex Kristev and Alexey Um_nik Danilyuk. Also thanks for:

Nikolay KAN Kalinin and Ildar 300iq Gainullin for help in preparing the problems; Ivan isaf27 Safonov и Oleg Merkurev Merkurev for testing the round; Mike MikeMirzayanov Mirzayanov for Codeforces and Polygon platforms.

I would like to express a special gratitude to Um_nik for the help throughout the process of preparing the round and also for patience for my stupid questions.

slight lyrical digression

This round is a thanks-round for support from Mail.Ru during the 8-year campaign!

Scoring distribution will be announced later. I wish you a high rating and looking forward to see you at the competition!

I'll be on the community Discord server shortly after the contest to discuss the problems.

UPD: scoring distribution div1: 500 1000 1750 2250 2500 div2: 500 1250 1500 2250 2750 3500

UPD2: edtorial.

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