Daily 353d day streak

Pretty easy problem I would say, just don't miss one edge case: "inini" -> "inini", not 'niiin'.

No pattern, so skippable.

https://leetcode.com/problems/smallest-palindromic-rearrangement-i/?envType=daily-question&envId=2026-07-28

#daily #medium #nopattern

Are there rust folks? I mean I am working on rust project but I dont understand rust much.

The question: piece of code that I have seen in threads, in any other languages, will lead to lost updates in concurrent environment.

BUT rust has this “mutating borrowing”, and I don’t know the internals and specifics. In theory, if only single thread can mutate state - it should be thread safe by definition. But maybe some experts can correct this statement.

I mean, the trick and magic should be happening on calling side, where we have balance variable, and how we leverage result of this function to update it. Function itself is just pure func, nothing special

Actually no. I hated it xD. When I was starting especially, because I didn't see real application for my work back then (honestly it is not much application even today). But I have very weird psychological peculiarity. I might hate some activity, but if my consciousness is convinced some "activity" is feeding us -> I can get tons of motivation and even enjoying becoming better in that activity

So my states were: "wtf is that why I need it" ->
"let's try, others for some reason are doing that" ->
"okay, this is the only way for big tech" ->
"oh, it can make your salary twice or tripple larger, we are going to become good here"

Another piece of motivation, that always worked for me: “this is exclusive thing not that many people can do”.

Selfish? Yes. Works? Yes. That was part of my motivation to start enjoying math, as I hated it most of my childhood. Part of this type of motivation applies to Leetcode ad well

And third one: grinding, lineage2 way. I wanted these 750 solved, I wanted cap, I wanted this ✅ “I did it”.

Tell me the most embarrassing mistaken English use?

I am personally B1-B2, and today probably was the worst case.

So three my friends and I were sitting in the kitchen. One guy was showing me the car he wants to buy, and I said:
“Will you ride me when you buy it?”

😁🏳️‍🌈👨‍❤️‍👨

I mean, only after 3-5 seconds I realized how it sounded😁. In Ukrainian it sounded okay in my head

For the future, you should say: “will you take me for a drive”

Mr Orange has disappeared for 2 weeks somewhere, but yesterday he was back🧡🍊

Daily 354th day streak

Pretty hard one, no pattern, I wouldn't recommend.

https://leetcode.com/problems/smallest-palindromic-rearrangement-ii/description/?envType=daily-question&envId=2026-07-29

#daily #hard #nopattern

Like really. Wtf?

Worth mentioning, they fucking did it right! If the window is not “fullscreen” it works. It just does not work, if the window is fullscreen, and then moving it to another display.

Probably first time for past many many months I actually have 8 hours “focused work” (which is like 12-14 hours in the office).

Have to prepare “knowledge share” about service we fully vibecoded recently for tomorrow. For now, probably noone actually knows how it works, except me, since I deliberately digging there

How many hours of focused work per day you have? How it works for you: when you start, how and how frequently you are doing breaks, when you finish work?

It does, but it is mentally much more exhausting. My typical learning of anything with ai is iterative process of trying to rule out hallucinations and be 100% confident (60-70% of whole effort)

This is the worst, when you just got “fresh” mental model, and then you spend 3x time to understand and accept it was hallucination and apply mental force to rebuild the model.

E.g I have learned our certs (very complicated stuff with 3 different semi custom tls impl and 2 pkis) in 2 weeks. Overall flow, with all the kernel underhoods in 1 week. General flow in 1 day.

Is it faster than without AI - yes. Easier - No. Enjoyable - No.

Side note: sometimes I am fighting with AI for like 3-4 hours. It would be very interesting how much reading is it. I have gut feeling this weekly ai learning session = 1-2 technical books. So it is a lot of ai slop processing which is very tiring as well

I have worn Whoop for one month, xiaomi band (1 year), samsung watch (6 months).

My problem with that is I DON'T mostly care about "fitness" data at all. Whoop was okay for tracking sleep, but I mean, I didn't find it that useful (I don't leverage this data anyhow). It was alright to check the pulse during the boxing and sleep. that's it.

For sleep though, I have seen many researches (years ago, but still) that they are not that accurate for tracking deep/non-deep sleep cycle (which is what is really important).


I'm hypochondriac, I want HEALTH indicators, not fitness indicators. I will be happy to track PH of my stomach, and digestive system in general, some indicators in blood (forecast illness and inflammation, check hormones lvl), track symptoms (not possible mostly) etc.

In my ideal world, I would inject ton's of devices inside myself to track everything and would do daily mri. This is what I want.

This "you burned X calories, Y steps, you have Z strain" - I don't give a shit to be honest.

Tell me folks whether you are using them and whether you find them useful?

I have bunch of friends that are using WHOOP and are pretty happy with that, among useful indicators is heart performance, strain, sleep. And this "your age comparing to others" which is a bit bullshit. But for them it is good. Some of them though had an feedback that it is good for like 2-3 months and then it is useless.

Daily 355th day streak

Easy problem, not bad one. Remember, word has UNIQUE numbers, cause I started thinking initially about much more complicated algo than we need here.

https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-i/description/?envType=daily-question&envId=2026-07-30

#daily #easy #nopattern

Daily 356th day streak (last in the month)

Yesterday I was overthinking about solution in case there are repetitive characters, but it was too much, we had unique?

Today we have repetitive chars. Good and solid problem, pretty easy, no such crazy pattern, just very basic ones

https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-ii/description/?envType=daily-question&envId=2026-07-31

#daily #medium #pattern

Juicy and tasty😁 let it be snowflake next quarter please