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
Instagram: andreyka26_se
TikTok: @andreyka26__
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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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Btw interview round “to check your AI usage, agentic development approaches” is already a thing that exists or getting onboarded to hiring process.

So learn how to properly use agents. This is now not an engineering skill, but interview skill as well
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andreyka26_se
Btw interview round “to check your AI usage, agentic development approaches” is already a thing that exists or getting onboarded to hiring process. So learn how to properly use agents. This is now not an engineering skill, but interview skill as well
For me it is like that as well. I am very poor user of agents tbh.
I just say to them what to do and then swearing that they didn’t do what I said until they do.😁 Sometimes I do it in plan mode.

Sometimes I am writing skill (we have bunch of skills at my job). They might be helpful.
I have heard about spec driven, but people say it is hard to maintain specs

I was mostly reading claude/cursor off docs


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Share your findings, and “tricks”/development setups and approaches?
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