Daily 442nd day streak

Good graph problem, has pattern, not hard.

https://leetcode.com/problems/number-of-closed-islands/description/?envType=daily-question&envId=2026-10-25

#daily #medium #pattern #recommend

Daily 443d day streak

Today we have nice graph problem again. Definitely recommended. Has pattern, not hard at all.

https://leetcode.com/problems/count-islands-with-total-value-divisible-by-k/description/?envType=daily-question&envId=2026-10-26

#daily #medium #pattern #recommend

I'm having flight, and the night before the flight I had a nightmare that the plane I was on crashed😁👍

This is one of the best explanations and visuals.

Especially I like they outlined that same ip packet is unwrapped from and wrapped to datalink packet many times + nat gw thingy

These 2 clown emojis.
I am really interested why that reaction without hate or smth. Write to me or in comment section: @andreyka26N

Cause I legit think it is good explanation and visual of the things no one talks about usually in books/articles

Daily 444th day streak

Easy problem, no pattern though, but not really a bullshit either, it is okay.

https://leetcode.com/problems/create-grid-with-exactly-one-path/?envType=daily-question&envId=2026-10-27

#daily #easy #nopattern

Daily 445th day streak

Interesting DP, a bit annoying, cause their hints will TLE or MLE xD. Not sure I want to recommend it, but it has pattern.

https://leetcode.com/problems/minimum-xor-path-in-a-grid/?envType=daily-question&envId=2026-10-28

#daily #medium #pattern

😎At least once a year I go there

Yesterday went casino, once a year as well, cash game holdem poker. Lost everything within 15 mins with my friend.

I am good for next year I guess.

Picture with sound

Daily 446 day streak

Just skip. Binary lifting + segment tree + some other shit I don't even know about, when leetcode soon will be replaced with AI -> no thanks, I will enjoy my vacation.

Problem potentially can be good, but spending 2-3 hours for one problem - no.
Do not recommend due to complexity

https://leetcode.com/problems/palindromic-path-queries-in-a-tree/description/?envType=daily-question&envId=2026-10-29

#daily #hard #pattern

Microsoft office snacks. There is one Ukrainian spy👀

Vlad posted a q about what people use as a “framework during work”.
https://t.me/tenfoundation/5550

^^ reading comments by people I feel myself so outdated and dumb...
I recommend to read and to at least be aware and maybe use

you know how I use ai?
I open cursor, and prompt what needs to be done... that's it.

We have access to logs via tools/mcp (I don't think I understand the diff at the moment 😅).
We have some skills as well, these are legit useful, cause we are frequently debugging low level networks shit, ebpf, kernel via CLI

But still, I just type prompt in cursor😁. Maybe it is because we are infra team and we don't need these spec driven development, and stuff, but maybe no.

I guess first time in my last 8 years of career I stopped myself before going and learning something that is used/known by everyone in industry at the moment.

What stopped me is this feeling that time investment might not worth it. That same feeling that I had in uni for some nonsense/bs subject that you just learn to pass exam and throw it away FOREVER.

Especially seeing that this happened years ago, people were deving harnesses, agentic, spec driven, subagents, mcps, bla bla bla.
Then new model released -> everything what was done by people is supported by that model natively, and then bye bye the knowledge and skills you've got.

And then you are like: "смотрите я сделал... ну и нахуй я ета дєлал?" https://www.youtube.com/watch?v=9udxWFXpj_U

AAAAAAAAAAND

I have big regret of studying things no one needs anymore (only books):

- Clean Architecture / SOLID by uncle Bob-> trash bin
- "blue book" domain driven design by Evans -> trash bin
- "red book" domain driven design by Vernon -> trash bin
- "code complete" by I don't remember whom -> trash bin
- "containerized apps / microservices / CQRS" by Microsoft -> trash bin
- CLR via C# Richter -> trash bin
- "design patterns" by Fowler -> trash bin

among useful for now -> everything I read about low level (not much unfor) + architecture, so Martin Kleppmann, Architecture in practice by Kazman, etc.

My exp talking about System design solutions with AI last year was bad, cause LLM's arch seems like working -> but I have understanding and feeling when it will not, and I was always right and proved that by POC. But I'm not sure it is the same nowadays. Maybe it will give me better system design than I can do....

I didn't think about it before, but this is so painful to realize.
All these books for sure helped landing 6-8k offers having 2 years of exp back then😁😁😁. So it was worth it.

But understanding that it is like thousands of hours spent into it to understand and learn thing that became completely useless now...

ahhahahahhha