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.

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andreyka26_se
Overtimes, ofc
Btw, this is not company related thing, I drew it, it is kernel network hooks. You all have it on your machine and on your servers
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Daily (306/373 streak until LC cap)

Not bad problem, not a bullshit (since graph/tree ofc). But I would still rate as true medium

https://leetcode.com/problems/number-of-ways-to-assign-edge-weights-i/description/?envType=daily-question&envId=2026-06-11

#daily #medium #pattern
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andreyka26_se
Video message
Vibe like Jack Sparrow is somewhere inside
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Dont worry, daily leetcode will be posted later, now I am fighting with bank to get 100 eur by coins.

Daily is quite interesting follow up from yesterday, that has multiple patterns, so I need a but more time to prep it for you.
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After 4 months I eventually got my coins, I am happy

In case you dont know how 100€ in 1eur coins look like - this is how.
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Ahhahaha somehow first impression is casino.

I dont know, my experience in Prague was: you go with at least 1k czk(50€), you pay them, you get chips, in the end if you are not me and don’t lose all money in poker - you exchange chips for cash.

Never had to have 1 eur coins for that, but I am interested, maybe I should use it.
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andreyka26_se
After 4 months I eventually got my coins, I am happy In case you dont know how 100€ in 1eur coins look like - this is how.
Btw this was my first monthly salary as swe in my first company back then in 2018😁

Was enough to eat whole month + free cookies and tea in the office
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andreyka26_se
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Daily (307/373 streak until LC cap)

Interesting problem, pretty tough and has the pattern I see first time in my life. Up to you.

https://leetcode.com/problems/number-of-ways-to-assign-edge-weights-ii/description/?envType=daily-question&envId=2026-06-12

#daily #hard #pattern
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Did you know that we are already done?
it is on default free gpt model, same on claude, and gemini.

As my friend suggested, most probably they are generating deterministic code and run it to get the answer.
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Daily (308/373 streak until LC cap)

Today is easy one, Happy Saturday. It is a bit bullshit tbh.

https://leetcode.com/problems/weighted-word-mapping/description/?envType=daily-question&envId=2026-06-13

#daily #easy #nopattern
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I found what I am gonna be doing when AI finally replaces me
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Daily (309/373 streak until LC cap)

Amazing problem, no jokes. It is non-bullshit, probably from the list, and uses 2 most popular linked list patterns.

Highly recommended. Note though, you should solve it in O(1) space complexity.

https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list/description/?envType=daily-question&envId=2026-06-14

#daily #medium #recommend #pattern
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I have already mentioned that I'm now fully vibecoding everything. I don't event bother to open PR - AI does it.
Do I enjoy it - yes, but a bit less.

Let's separate work related and personal projects.
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andreyka26_se
I have already mentioned that I'm now fully vibecoding everything. I don't event bother to open PR - AI does it. Do I enjoy it - yes, but a bit less. Let's separate work related and personal projects.
For personal projects, I'm enjoying a bit less in a sense that I don't feel "ownership" and I don't have much "understanding", and even sometimes ideas are not mine. This way I'm a bit more upset. But, on the other hand, you have so much opportunities to get "your idea working" fast.

Example1: I was deving symptom diary, as I'm hypochondriac, and got tired doing that in google docs. In comments I will show you the initial design of it (I'm backend guy pretty much). It was awful. I was struggling a lot with frontend, as I don't like it and don't see the reason to learn but still have to make it work as I want it to. So Initial, very ugly, half working version appeared in few months. Now with ai, I did the same progress, but more features, less bugs and amazing design in few weeks(it was with shitty copilot gpt model/free)

Example2: I needed my dev tools, for ip lookup, regex, encoding/decoding, bits conversion etc. I made it in few days. Back then it would be multi months effort. I'm happy that I can deliver something so fast, it feels like cheating in games, and it still brings this enjoyment "I created this product, and use it, nice, cool", however not from code perspective. Now I have more time to spend on learning and improving some low level stuff that I genuinely interested to learn and improve, instead looking up how to fu cking center the div.

Example3: in my symptom diary, I wanted to switch color from blue to green recently. Yea, AI didn't create some "config" or something so that I have one place of changing it. But it is not a problem, I asked opus to do that and it did it in 1 shot in 10 minutes zero problems, zero errors.
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andreyka26_se
For personal projects, I'm enjoying a bit less in a sense that I don't feel "ownership" and I don't have much "understanding", and even sometimes ideas are not mine. This way I'm a bit more upset. But, on the other hand, you have so much opportunities to get…
For the work related things, AI is again, pros and cons. I personally started working more, as there are higher expectations from developers, besides that I need to spend time on learning these tools. Usually the code that is generated is shit, let's be honest, it is less readable. Now writing to reading code ratio went down from 10/90 to 0/100, so mentally I'm getting tired much more often: more PRs to review + my own PRs.
However, it again gives you speed and a lot of the time "shortcuts" so that you might skip fixing some boring bug you are not interested in

Example1: my project's build somehow broke env for all the people due to mismatch of cpu architecture or something like that. I didn't even created these pipelines, didn't know how they work, BUT, I prompted for 10-15 mins, opened PR - the guy switched to my branch, confirmed it is working - we moved on. I would spend around a day to figure it out on my own.

Example2: the "figuring out" how some project/code works boosted 2-3 times. Because now I don't have to search and guess where some specific behavior lives and how it works. This is the top1 usage in my case, and it helped me many times to spend much less time to understand something - figure out how it should be done and fix (ask AI to fix). On my own I would do it in 1 months, with AI I did in 1-2 weeks. I feel I more and more learning stuff that are critical and interesting for me, rather then figuring out how exactly same shit is done in this specific company and all this boilerplate. Now it is for AI, and I can be busy learning TLS, networking, POCs etc.

Exmaple3: POCs, omg, this is game changer for sure. It is SO OP to be able to confirm your hypothesis in a matter of hours, rather than weeks-months.
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Daily (310/373 streak until LC cap)

Amazing problem again, no jokes. Easier than yesterday's one, again uses the well known pattern.

Highly recommended

https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list/description/?envType=daily-question&envId=2026-06-15

#daily #medium #pattern #recommend
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