andreyka26_se
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Hey, I'm software engineer at Microsoft, with 7 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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wow, so this works like google docs, meaning, you can edit code at the same time. Not sure this is much useful, but interesting feature. I thought it will be something like leaderboard, so you can compete who is faster and who has better solution
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Andrii Bui
Video message
My friend asked me if it was because of stress or anger. It wasn’t, but oh my god, sometimes I have such a huge urge to punch the screen when I’m working on my Microsoft-provided, slow-as-hell laptop and it takes five minutes to load Teams - making me five minutes late to some important meeting, for example.

SOOOOOOOOOOO maybe, good decision would be to leave this screen on the desk. You know, this will be my work on mental wellbeing. Unreleased anger - is the worst, it can cause cancer, at least this is what I heard😁
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The next one is stripe
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Daily

Was not able to come up with the idea, which was very simple. Once you get it - it is not hard problem anymore

https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/description/?envType=daily-question&envId=2025-10-30

#daily #hard
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Champ breakfast
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Was playing with postgres, and I was under impression that it uses MVCC, and that's why it does not need pessimistic locking, as it is checking that version is still the same.

Outcome: all 3 isolation levels: read committed, snapshot(aka repeatable read) and serializable are locking simple CAS (compare and swap)
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Daily

It was a long time without linked list and here we go. Actuallly an easy problem, go and collect the coin.

https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/description/?envType=daily-question&envId=2025-11-01

#daily #medium
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A bit of leetrooms today, to keep the skill up.

One nice problem:
https://leetcode.com/problems/sum-of-matrix-after-queries/description/

To not burn your ass you need to know that you can afford only one for loop over the queries. Inside that for loop you cannot iterate over rows or cols.
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andreyka26_se
Video
In the ticketmaster we gonna design at some point, this shit will not exist!!

I actually can assume architectural decision to make it work per location, but maybe I'm wrong
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Daily

Idk, for some reason took me very long time to figure out what is needed in this q.

https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/description/?envType=daily-question&envId=2025-11-04

#daily #easy
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