intrusiv's blog

By intrusiv, 3 months ago, In English

A — Constructive Problems

Author: valeriu

Solution
Code (valeriu)
Rate Problem

B — Beginner's Zelda

Author: valeriu

Solution
Code (valeriu)
Rate Problem

C — Largest Subsequence

Author: tibinyte

Solution
Code (tibinyte)
Rate Problem

D — Cyclic MEX

Author: tibinyte

Solution
Code (tibinyte)
Rate Problem

E — One-X

Author: tibinyte

Solution
Code (tibinyte)
Rate Problem

F — Field Should Not Be Empty

Author: tibinyte

Solution
Code (tibinyte)
Rate Problem

Full text and comments »

  • Vote: I like it
  • +90
  • Vote: I do not like it

By intrusiv, 4 months ago, In English

Hello, Codeforces! Or, as we like to say in Romania: Dacă voi nu mă vreți, eu vă vreu, Codeforces!

I am glad to finally invite you to participate in Codeforces Round 915 (Div. 2), which will start on Dec/16/2023 17:35 (Moscow time). You will be given 6 problems and 2 hours to solve them.

The problems were supposed to be authored and prepared by valeriu, but in reality they were by tibinyte.

I would like to thank:

  • Say_my_name for LGM testing

Scoring Distribution: 500-1000-1500-2000-2250-2250

The problemsetters wish you good luck & have fun :)

Editorial is available here.

Full text and comments »

  • Vote: I like it
  • +231
  • Vote: I do not like it

By intrusiv, history, 4 months ago, In English

Hi Codeforces,

Time goes by, and so should we. And it seems that the time has come for this year. So, it's a great time to reflect on and appreciate the standout problem sets that made this year memorable. What specific problem stands out to you as the highlight of your year?

PS: For the problems included in some of the most upvoted comments, I think I will host a poll to truly get the best problem of the year (so problems should be from a contest pertaining to this year). Applications (meaning comments taken in consideration) for this will naturally close at the end of the year after we've had time to see all of them.

Full text and comments »

  • Vote: I like it
  • +76
  • Vote: I do not like it

By intrusiv, 16 months ago, In English

Hello guys! I am back from the dead. Mainly because my deathly slumber has been unfortunately interrupted. This post is to address that disturbant factor.

Does anyone remember this? Well I do. And in it's reminiscence, I will write the following:

I hate seeing 3+ comments from you on basically every fucking CF blog. You've literally made more comments in 2 weeks than most people have in 3 years. You would be better off solving fucking problems. If you can't do that, then find a hobby. Go outside. Play in the sun. Touch some grass. Play games with friends(or by yourself). Explore Nature. ANYTHING. But don't make useless comments. You dont have to voice your opinions on everything. Many of them are shitty and irrelevant spam comments. At this rate your account should get banned. Just listen to bleahbleah 's advice.

bhikkhu

Full text and comments »

  • Vote: I like it
  • -19
  • Vote: I do not like it

By intrusiv, 2 years ago, In English

Those are the words of general Charles de Gaulles, when he freed the Algerians from the grasp of the french empire.

I think in these very hard times we should all just be empathic with one another and stop arguing about is US is good or evil or Russia is evil or good. Ukrainian people suffer and we should all send our prayers to everyone who has been unfortunately caught in the crosshairs by this terrorism (because it sure as hell isn't war)

May god be on your side, reader! and fuck you if you downvote

Full text and comments »

  • Vote: I like it
  • -4
  • Vote: I do not like it

By intrusiv, history, 3 years ago, In English

Hello,

I know that div1 starts with being a candidate maaster (rating >=1900), but those with rating between 1900 and 2099 can participate in "div2 only" rounds too , but it's unclear for me if candidate masters could participate in educational rounds. can they suffer rating change, or not, during these rounds? (by participate I mean the round would be rated).

Full text and comments »

  • Vote: I like it
  • -11
  • Vote: I do not like it