Distributed systems, Tanenbaum.

Pretty similar to consistent hashing, but without a coordinator

Something that is called chord, and it has very interesting way of finding the right node (that has your key)

You have pointers to adjacent nodes (neighbours) + finger table, that is very unclear, but in the nutshell it has exponential “pointers” where the data is. You can chatgpt it.

I am wondering is it much worse than consistent/rendezvous hashing or not. Cause rendezvous does not beed coordinator in theory, as well as consistent

Daily

OMG, absolutely love it. This amazing feeling to implement something close to real world.
Not sure how come this is medium, typically, the concurrency knowledge is something that is getting checked in "bank" related algo/oop questions, but in leetcode it is not.



https://leetcode.com/problems/simple-bank-system/description/?envType=daily-question&envId=2025-10-26

#daily #medium

By the way, do you know why it won't work in concurrent world, e.g. 2 transfers at the same time {acc1 => acc2} and {acc1 => acc3)?

How would you handle it? Let's now even abstract it from database, let's say this is only in memory

Pls support with like❤️

Daily

Should be easy IMO.

https://leetcode.com/problems/number-of-laser-beams-in-a-bank/submissions/1813045010/?envType=daily-question&envId=2025-10-27

#daily, #medium

Maybe yes, maybe no
maybe sex - I don't know

Daily

Easy, nice problem, go and collect the coin

https://leetcode.com/problems/make-array-elements-equal-to-zero/description/?envType=daily-question&envId=2025-10-28

#daily #easy

Gg to my screen I guess

What I'm busy at midnight?

Proving that no fucking real time system design should have pubsub/kafka approach. Applies to
- messenger
- presence service
- realtime video comments

Just don't do it. I'm so fucking pissed that every second resource on internet suggests this, WTF

I'm prepping for the next system design video/article like that one.

You are my audience, community and people that are supporting me. You gotta be choosing the next one

Did you see this new feature? As I understood now you can invite the friends to code with you

Daily

Easy, problem, go and collect the coins

https://leetcode.com/problems/smallest-number-with-all-set-bits/?envType=daily-question&envId=2025-10-29

#daily #easy

wow, so this works like google docs, meaning, you can edit code at the same time. Not sure this is much useful, but interesting feature. I thought it will be something like leaderboard, so you can compete who is faster and who has better solution

My friend asked me if it was because of stress or anger. It wasn’t, but oh my god, sometimes I have such a huge urge to punch the screen when I’m working on my Microsoft-provided, slow-as-hell laptop and it takes five minutes to load Teams - making me five minutes late to some important meeting, for example.

SOOOOOOOOOOO maybe, good decision would be to leave this screen on the desk. You know, this will be my work on mental wellbeing. Unreleased anger - is the worst, it can cause cancer, at least this is what I heard😁