By BlueDiamond, history, 25 hours ago, In English,

I love Codeforces and the codeforces comunity

So...I made a short funny movie about it :)

Enjoy!

Link to the movie

Update: Thanks for the positive feedback, stay tuned for part 2 which will be a lot better :)

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By rng_58, history, 2 days ago, In English,

We will hold Keyence Programming Contest 2020.

The point values will be 100 — 200 — 400 — 700 — 900 — 1100.

We are looking forward to your participation!

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By Akikaze, 6 days ago, In English,

All themes written by Akikaze (I am the only one in the team playing Cytus II anyway :D).

1293A - ConneR and the A.R.C. Markland-N

Author: xuanquang1999
Development: xuanquang1999, Akikaze
Editorialist: xuanquang1999, Akikaze

Tutorial
Solution (Akikaze, C++)
Solution (Akikaze, Java 8)
Solution (Akikaze, Python 3)

1293B - JOE is on TV!

Author: Akikaze
Development: Akikaze
Editorialist: Akikaze

Tutorial
Solution (Akikaze, C++)
Solution (Akikaze, Java 8)
Solution (Akikaze, Python 3)

1292A - NEKO's Maze Game

Author: xuanquang1999
Development: xuanquang1999, Akikaze
Editorialist: Akikaze

Tutorial
Solution (Akikaze, C++)
Solution (Akikaze, Java 8)
Solution (Akikaze, Python 3)

1292B - Aroma's Search

Author: Akikaze feat. xuanquang1999
Development: xuanquang1999, Akikaze
Editorialist: Akikaze

Tutorial
Solution (Akikaze, C++)
Solution (Akikaze, Java 8)
Solution (Akikaze, Python 3)

1292C - Xenon's Attack on the Gangs

Author: xuanquang1999
Development: xuanquang1999
Editorialist: xuanquang1999

Tutorial
Solution (xuanquang1999, C++)
Solution (xuanquang1999, Java 8)

1292D - Chaotic V.

Author: Akikaze
Development: Akikaze
Editorialist: Akikaze

Tutorial
Solution (Akikaze, C++)
Solution (Akikaze, Java 8)
Solution (Akikaze, PyPy 3)

1292E - Rin and The Unknown Flower

Author: low_ (Sooke Remix)
Development: low_, Sooke, Akikaze
Editorialist: low_

Tutorial
Solution (Akikaze, C++)
Solution (Akikaze, Java 8)
Solution (Akikaze, Python 3)

1292F - Nora's Toy Boxes

Author: xuanquang1999 × MofK
Development: xuanquang1999
Editorialist: xuanquang1999

Tutorial
Solution (xuanquang1999, C++)
Solution (xuanquang1999, Java 8)
Solution (xuanquang1999, PyPy 3)

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By chokudai, history, 23 hours ago, In English,

We will hold AtCoder Beginner Contest 152.

The point values will be 100-200-300-400-500-600.

We are looking forward to your participation!

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By HIR180, history, 101 minute(s) ago, In English,

Japanese version XD (sorry for imitating you, Radewoosh. I'm a big fan of you :) )

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By Harbour.Space, history, 4 days ago, In English,

Hi Codeforces!

Have you ever wanted to ask MikeMirzayanov about something in particular? Maybe how he began with Codeforces, what the challenges of running such a large platform are, or maybe some tips for becoming a top competitive programmer?

Well, we have quite an exciting announcement to make — Mike is in Barcelona at the moment for his course at Harbour.Space, and next week, we’re going to shoot an interview where he answers the community’s questions!

So, if you have a question, write it in the comments. Mike will choose and answer the top questions in his interview next week.

We will post the interview as a video on our blog, so stay tuned :)

See you around!

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By ipaljak, history, 4 days ago, In English,

Hi all,

join us on the fourth round which will be held on Saturday, January 18th at 14:00 UTC.

If you are not familiar with the COCI contest format, we encourage you to read the announcement for the new season. You can also find the problems from the previous rounds here.

Feel free to discuss the problems in the comment section after the contest ends.

See you on Saturday!

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By pikmike, history, 4 days ago, translation, In English,

1288A - Deadline

Idea: adedalic

Tutorial
Solution (adedalic)

1288B - Yet Another Meme Problem

Idea: Roms

Tutorial
Solution (Roms)

1288C - Two Arrays

Idea: BledDest

Tutorial
Solution (Roms)

1288D - Minimax Problem

Idea: BledDest

Tutorial
Solution (BledDest)

1288E - Messenger Simulator

Idea: Ne0n25

Tutorial
Solution 1 (pikmike)
Solution 2 (pikmike)
Solution 3 (pikmike)

1288F - Red-Blue Graph

Idea: BledDest

Tutorial
Solution (BledDest)

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By TB14, history, 38 hours ago, In English,

We can talk about it here.

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By gregr, history, 27 hours ago, In English,

All , I have a question for you . We are given a set of points in 2-D plane . we need to form a square centered at origin such that it has max perimeter and does not encloses any of those points . Can you answer this , or can you atleast refer me resources from where can i study this. your reply is greatly appreciated. kindly do not downvote this post, you can get answer if someone replies.

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