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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The more I am learning - the more I'm getting convinced how important is to have a right mental model about things.

Pretty much learning something in IT - was always about building this mental model the right way. This is what I keep doing even now. And I'm wondering, how is it in other people.

Maybe it would be fun to ask some questions about how do YOU imagine the mental model (visual entities) in your mind about something.

Let's start with simple "general ones" and then progress to more complicated software engineering ones.
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andreyka26_se
The more I am learning - the more I'm getting convinced how important is to have a right mental model about things. Pretty much learning something in IT - was always about building this mental model the right way. This is what I keep doing even now. And I'm…
First q, how do you imagine year and months?
This is my representation. This is literally what I "see" every time I'm thinking about what month is it right now and when am I.

It always starts with Autumn (probably because of school). It always has specific separator in Dec-Jan. Somehow Spring is "less important" than Winter and Summer.

Share your ones
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Daily 359th day streak

Don't be scared, if you have solved yesterday's and the day before yesterday's problems - it should be easy-mid for you.

The problem is good, it has a pattern, game theory + dp. Amazing one, definitely recommended.

https://leetcode.com/problems/stone-game-iii/description/?envType=daily-question&envId=2026-08-03

#daily #hard #pattern
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Dealing with stock broker application is always "amazing"/strange experience.

Now I wanted to fill some form, it shown me an error. Then I got phone call (automated from US) with the message: "Hey, there was an application error, good bye"🗿🗿🗿
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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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