Codeforces functionality may be limited from June 18, 19:00 (UTC) to June 19, 3:00 AM (UTC) due to technical maintenance. Polygon will work as usual. ×

3zim's blog

By 3zim, 5 months ago, In English

Hey guys, Hope all of you are fine

In a lot of times after I solved a problem I want to write a note about it for myself. Such as from where I got a hint or what topics I used to solve it.. what techniques. What specific test case that made me go crazy to solve it may be XD. And other related things you want to write for yourself.

I think it will be a lot helpful for learner around the world. If you support this idea upvote the blog and leave a comment. Also, if you have a way to do this thing so please tell me I will be thankful.

Thanks for MikeMirzayanov for giving us this amazing platform.

Thanks for reading.. see yuh

Full text and comments »

  • Vote: I like it
  • -17
  • Vote: I do not like it

By 3zim, 12 months ago, In English

Hey guys, Hope you are fine

When I solved a problem in a group or a contest that a friend collect or something like that. The problem appeared like accepted in the problem set and the contest but I can't see my submission. And in most cases I don't remember the group or the contest I solved the problem in.

like that, I can't see the submissions but I knew I solved them.

I know I can solve them again, but I love do some analytics and see my old code.

So I want to know is there are anyway to find the submission?

Thanks for consideration all Love

Update: I think It's good idea to add a search by problem code in "My Submissions" Filter so you can see all submissions you make for a specific problem in different places.

Here

Full text and comments »

  • Vote: I like it
  • +7
  • Vote: I do not like it

By 3zim, history, 14 months ago, In English

Hey there,

We already know Codeforces queue are good enough but not the best and already the numbers of users in increasing everyday. Now let's get directly into important thing..

In the last days there are some handles that only made for testing ChatGPT solving some problems with a script that make a lot of submissions in the same time and take a place in the queue!!

I don't know actually is that illegal or not but it's really ridiculous

Here is an example if you don't know what I am talking about:

Next pictures is from ChatGPT_test last submissions:

Here we can say 10 pages in queue! So you can imagine how this affect directly on the other users try to learn and solve problems.

Thanks for your reading time <3

MikeMirzayanov

I mentionetd mike so he can see the blog :3

Full text and comments »

  • Vote: I like it
  • +330
  • Vote: I do not like it

By 3zim, 21 month(s) ago, In English

Hello there!

I want to know is really Codeforces pupil is just a pupil in programming?

I know guys who learnt many algorithms and how to use them but they are stuck between specialist and pupil. And even sometimes they are stuck just in pupil so I just wonder.

I found this blog: Link

And I think it's more accurate than current titles cuz get 1000 in codeforces not that easy and a beginner who just entered the programming field can't get it.

Full text and comments »

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

By 3zim, 21 month(s) ago, In English
  • Vote: I like it
  • +9
  • Vote: I do not like it

By 3zim, 23 months ago, In English

Edit Note: I know long test case is important to determine if the complexity of the code fits or not. But why putting it in the second testcase it's better to put many test cases first that test the logic of the code then put the case of timelimit.

Before putting downvote explain why in comments, please.

In the last rounds while the contest I tried to solve problems got some accepted and couldn't solve the other some. That's normal soo normal.

So after the contest I go trying to upsolve the problems I couldn't solve. First I tried by myself then see the test cases and last thing is to see the editorial of the round. So when I saw the solution of editorial I been surprised with a different solution that has no connection with mine! So I don't know if my solution can get accepted or not!

This is really disappointing especially for beginners like me..

The testcase I talk about:

Full text and comments »

  • Vote: I like it
  • -15
  • Vote: I do not like it

By 3zim, 2 years ago, In English

First thing I really appreciate he(beethoven97) makes the tests stronger and rearrange the standing correctly.

I just wonder how do he do it?

A picture from Educational Codeforces Round 130 (Rated for Div. 2) that showing the number of hacks he made until the time I wrote this blog:

Full text and comments »

  • Vote: I like it
  • +42
  • Vote: I do not like it

By 3zim, 2 years ago, In English

If you want to practice online contests and participate in a lot of them but you don't find a good contests to enter.

So I think this website will help you:

Note: if you don't trust the link just search by "Clist" on any search engine and you will find it.

It's direct and so clear and organized will to see all events of competitive programming. And some of the contests are for interview or get hiring in a good job.

Full text and comments »

  • Vote: I like it
  • +8
  • Vote: I do not like it