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.

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Daily

I mean, I'm oncall, I checked discussion, people are crying that this should be hard, so I go straight away to the answer section, don't even want to waste my time.
To me seems like bullshit problem

https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-i/description/?envType=daily-question&envId=2025-10-21

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Daily

OMG, absolutely love it. This amazing feeling to implement something close to real world.
Not sure how come this is medium, typically, the concurrency knowledge is something that is getting checked in "bank" related algo/oop questions, but in leetcode it is not.



https://leetcode.com/problems/simple-bank-system/description/?envType=daily-question&envId=2025-10-26

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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

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Daily

Today is graph problem. I love graph problems. But it requires again a bit of coding, and a bit of graph algo's knowledge.

https://leetcode.com/problems/power-grid-maintenance/description/?envType=daily-question&envId=2025-11-06

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Daily

Not that bad, but a bit bullshit. It takes a bit long to build an intuition (I will leave hint for that in comments)

https://leetcode.com/problems/minimum-number-of-operations-to-make-all-array-elements-equal-to-1/description/?envType=daily-question&envId=2025-11-12

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Daily

Actually a nice one. Kind of "area" line sweep. Nice to learn a bit.

The hint: the intuition you can derive from is try to do it with 1D array and columns updates on it.

https://leetcode.com/problems/increment-submatrices-by-one/description/?envType=daily-question&envId=2025-11-14

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Nice problem, pretty easy. But you need to recall how to do arithmetic progression: https://en.wikipedia.org/wiki/Arithmetic_progression

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Nice problem, even though I didn't figure out the intuition right from the first time.

https://leetcode.com/problems/unique-length-3-palindromic-subsequences/description/?envType=daily-question&envId=2025-11-21


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