andreyka26_se
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Hey, I'm software engineer at Microsoft, with 8+ years of experience. Here we are talking about F(M)AANG big tech interviews: leetcode, system design and corpo life.

YouTube: @andreyka26_se
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TikTok: @andreyka26__
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Daily 360th day streak

Easy one, for 2 mins coding. Go for it. However no pattern is here.

https://leetcode.com/problems/find-missing-elements/description/?envType=daily-question&envId=2026-08-04

#daily #easy #nopattern
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Daily 361st day streak.

Amazing graph problem. You know I like them, not a bullshit one. Nice patterns can be used. Not really hard

Description here is a bit complicated - check the comments, I will explain

https://leetcode.com/problems/remove-methods-from-project/?envType=daily-question&envId=2026-08-05

#daily #medium #pattern
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andreyka26_se
Your blogger got hooked today, sorry..(
Btw anyone is playing battlefield 1 multiplayer? I am playing with my friend, but it is just 2 of us. Would be great to have full party 5 people and smash everyone.
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Small dinner for two of us, and lets call it a day
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Oh my god I got so many clowns in threads that try to educate me on async/await in js and in general in other languages

So the question:
What is async/await, why is it used?
You can answer for your language as it will be a bit different according to thread model that is used in it.

Throw few words below
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andreyka26_se
Oh my god I got so many clowns in threads that try to educate me on async/await in js and in general in other languages So the question: What is async/await, why is it used? You can answer for your language as it will be a bit different according to thread…
Would you be interested in article about async await in differential languages, literally underhood / hardware level?

I have notes for that, as 2018-2022 I was doing a lot of outsource companies interviews, and I learnt it very low level for .net/c#, js and python.
Seems like a pretty confusing topic.

Not sure it is needed that much nowadays with ai to be honest.
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Some interview story: might be useful
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andreyka26_se
Oh my god I got so many clowns in threads that try to educate me on async/await in js and in general in other languages So the question: What is async/await, why is it used? You can answer for your language as it will be a bit different according to thread…
Check the comments section. What a beasts we have here in this channel.

I am proud of you. I am not JS guy, learnt it a bit many years ago, but today from our comments learnt a bunch of new things, low level with official doc refs, exactly how I like it.

Respect guys🤝🫡
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andreyka26_se
Btw anyone is playing battlefield 1 multiplayer? I am playing with my friend, but it is just 2 of us. Would be great to have full party 5 people and smash everyone.
Played with Maksim, the guy who responded. Amazing.

Go and get the game, let’s do full squad.
Engineering connects people😁
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Daily 362nd day streak

It took me some time to come up with nice solution, but in general, since easy - any bruteforce will fit here.

No pattern though.

https://leetcode.com/problems/smallest-divisible-digit-product-i/description/?envType=daily-question&envId=2026-08-06

#daily #easy #nopattern
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andreyka26_se
Played with Maksim, the guy who responded. Amazing. Go and get the game, let’s do full squad. Engineering connects people😁
Btw the guy is crazy. I thought I am the “early bird”, started working when I was 18, had pretty much only first year of uni and then skipped most of the stuff

But Maksim started doing freelance tasks at 16-17, and IN THE BEGINNING of the first year in uni, when he was 17 - he interviewed and got a job🤯.

Practically, he fully skipped uni. Legend. Big respect
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Yeeea, flashbacks in instagram dm. This is how all “blogging” thing and andreyka26.com started. There was no-one explaining authorization like I do: deep, with all questions and reasons behind what’s done covered, detailed step-by-step, etc

So I investigated, built, made a video and article, and in 2023 +- it got pretty high attention. But not anymore, I think now claude might explain it better, maybe. Side thing, I dont need this explanation anymore as I have RFC snapshot about oauth in my head😁
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andreyka26_se
Yeeea, flashbacks in instagram dm. This is how all “blogging” thing and andreyka26.com started. There was no-one explaining authorization like I do: deep, with all questions and reasons behind what’s done covered, detailed step-by-step, etc So I investigated…
Btw yea, most of the “protocol” things are amazingly explained in rfc, with “official” terminology and stuff.

Whenever you have discussion with someone, your argument: “this is rfc confirming my point” - is killer-argument.

Applies to http, dns, and whole tcp/ip stack, oauth/oidc(not really on rfc but has official doc), etc

I made so many people crazy with “jwt with login+password is insecure antipattern discouraged, by OAuth rfc literally”😁
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Seen post like MB/s vs Mb/s, and the difference.
Well actually there are more😁

Mebibits - bits in binary 1024 format
Mebibyte - bytes in binary 1024 format
Megabit - bits in decimal 1000 format
Megabyte - bytes in decimal 1000 format
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