ssense's blog

By ssense, history, 2 months ago, In English

After searching on the internet I couldn't get a definitive answer, so I am asking here.

Does Fast Fourier Transform come up in Olympiads often or at all?

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By ssense, history, 2 months ago, In English

Today I lost expert and my girlfriend broke up with me.

I am making this blogpost to ask everyone for suggestions on how to deal with such an event.


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By ssense, history, 3 months ago, In English

I've noticed that the blogs getting on the TOP tab on codeforces aren't necessarily the most upvoted ones.

I'm sure there exists a more complicated algorithm, but it seems to be based largely on the number of comments that a post has. This means that more controversial, stupid or someone started an argument in the comments posts which get people to comment will rise rapidly to the top.

What does the Codeforces community think about this? How would you change it?

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By ssense, history, 3 months ago, In English

Hello Codeforces!

I_Love_YrNameCouldBeHere and I are glad to invite you to Unofficial Div 4 Round #2. Which will take place this Wednesday at 14:35 UTC (The round is over now, but you can still participate virtually). The round will not be rated for any participants since it is unofficial.

Contest link:

You will be given six tasks and two hours to solve them. The problems were created and prepared by ssense and I_Love_YrNameCouldBeHere for users with a rating range from 0 to 1400 but anyone is welcome to participate in the round!

We want to thank everyone who was involved in the round preparation:

Errichto for thorough testing and publishing this round on the gym.

Also, after the contest Errichto will post videos about this contest and the responsibilities of a tester.

UPD: Videos are now up: Fixing A, Testing A, Testing the rest.

Brodicico for help with problems and testing the round.

And a huge thank you to the testers: Errichto, 1-gon, galen_colin, gupta_samarth, arujbansal, Chihai_Ion and Grumpah .

MikeMirzayanov for Polygon and Codeforces platforms.

Even though the contest is unrated, we believe it is an excellent way of practice, especially for Div 4 users.

Remember, if you don't know how to solve one problem, look at others!

UPD 1: Registration available now!

UPD 2: Round is over! We hope you enjoyed the problems and congratulations to the winners!

UPD 3: Editorial is out!

Div. 4 winners:

  1. doing_cloth

  2. anshu_man

  3. Pranava23

Not Div.4 Winners:

  1. Geothermal

  2. Maksim1744

  3. Mucosolvan

First to solve each problem:

A: First: Valera_Grinenko

Div. 4 first: anuragdvd

B: First: Geothermal

Div. 4 first: Lelouch_1

C: First: Geothermal

Div. 4 first: Lelouch_1

D: First: Geothermal

Div. 4 first: RamPrabodhInduri

E: First: Geothermal

Div. 4 first: -deleted-

F: First: IgorI

Div. 4 first: sahaun

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By ssense, history, 4 months ago, In English

Hello Codeforces, a lot of people have been asking me "How do I get GF!?". Well, I'm here to answer this question once and for all.

1. Reach Expert

Until I have reached expert, no girl wanted to talk to me. Right after contest Codeforces Round #677 (Div. 3)(when I reached expert) my Instagram and Snapchat DM's were full of messages from girls asking me out, this will happen to you too.


But you can't only get the girl, you have to maintain her! Which brings me to step 2.

2. Maintaining Expert+

Once you reach Expert, you have to keep it, unless you want her to leave you for another expert. This can be easily done by 2 main ways

  1. Never participate on Codeforces again.

  2. Ask solutions from other people during contests.

PS: Make sure not to get higher than Candidate Master.

3. Keeping the Girl.

Ok, you are maintaining Expert, now you have to keep the girl attracted to you. Wavelength isn't going to do everything.

  1. Buy her stuff. This is a very important step to maintaining a girlfriend(Eg: Food and Purses).

  2. Teach her competitive programming, but make sure you have more rating.

  3. Fight every simp she has to assert dominance.

  4. No dates until marriage.

  5. Upvote this blog post.

4. Flexing on other CP-ers

What's the point of having a GF if you can't flex on single people? NONE!

Message every single one of your friends and tell them about your brand new girlfriend.

5. Enjoy Life

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By ssense, history, 5 months ago, In English

This is the editorial for the Unofficial Div4 Round#1 created by I_Love_YrNameCouldBeHere and ssense.


Previously you could only virtually participate, now the contest is open for practice!

Invitation link for the contest:


Alin and Money


Sanda's Homework

Problem C:

Gicu's way Home

Problem D:

Game of GCD

Problem E:

Strange Pool

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