Or, spend time on grinding your interview skill (leetcode, system design, intw questions), to feel extra confident and know that even in case of drop, in 1 month, you will find something else.

Airport leetcode once more

Daily

Today leetcode is a joke. Literally problem for 40 seconds. Go and collect the coin.


https://leetcode.com/problems/find-closest-person/description/?envType=daily-question&envId=2025-09-04

Solution: just measure absolute distance and return the one which is less

Daily

Math💀. Was not able to solve on my own.

https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/?envType=daily-question&envId=2025-09-05

I added different structure for daily leetcode questions. Now answer with hints will be in comment section instead of separate post. Hope it will make things clearer. I'm 100% sure, maybe 1% of you are doing it with me, but at least for this 1% it will be extra motivation and competitive feeling (this guy did it today, I can do it as well)

Just realized I'm 25.... wtf is this, I feel like maybe 19-20 still

Daily

Bruteforce - quite easy, but we need something better than O(n*m)
Optimized - might be a bit hard

https://leetcode.com/problems/minimum-operations-to-make-array-elements-zero/?envType=daily-question&envId=2025-09-06

Tomorrow we are streaming during the day: 14-16 UTC + 2
Implementing Redis Sharding POC (basically emulating real redis)

Started

https://www.youtube.com/watch?v=qr8WUdzJN9k&ab_channel=andreyka26_se
https://www.twitch.tv/andreyka26_

Daily

Easy one, go and collect the coin


https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/?envType=daily-question&envId=2025-09-07

#daily

Daily

Easy one - go and collect the coin, guys.

https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/description/?envType=daily-question&envId=2025-09-08

Today let's play Starcraft2. In 2-4 hours

Daily

Today is interesting question. not bullshit math at least.

https://leetcode.com/problems/number-of-people-aware-of-a-secret/?envType=daily-question&envId=2025-09-09

#daily

Daily

Today quite interesting problem, I liked it, it is legit mid.

https://leetcode.com/problems/minimum-number-of-people-to-teach/description/?envType=daily-question&envId=2025-09-10

#daily

Daily

Today mid feels like easy. Solved in 2 mins, go and collect your coin.

https://leetcode.com/problems/sort-vowels-in-a-string/description/?envType=daily-question&envId=2025-09-11

#daily

Ahahhahah so accurate.
This is my CZ skill after 3.5 years here

Today's morning does not start with leetcode.

I have heard a lot of suggestions and questions about why I don't start/run startup, why keep working on corpo shit, being employee, have manager who tells you what to do, etc.

Here is why:
https://live.andreyka26.com/why-software-engineers-shouldnt-start-startups

Daily

OFC we are doing daily guys. Today daily is joke. Just think about possible cases, and realized that you don't need any simulation at all.

https://leetcode.com/problems/vowels-game-in-a-string/description/?envType=daily-question&envId=2025-09-12

#daily