Expl:
Usually it is 1-3k impressions per day.
And suddenly, it is 80k spike, but clicks num didnt change.

Daily (298/373 streak until LC cap)

Same problem as yesterday, and the same solution, but just mid

https://leetcode.com/problems/earliest-finish-time-for-land-and-water-rides-ii/description/?envType=daily-question&envId=2026-06-03

#daily #medium #nopattern

I will tell you 100% working fix for memory leak. It was proven already in 2 big tech companies.


The fix is called SDP - safe deployment practices, one of the points there is regular deployment which causes nodes simply to restart.

Typically large companies might have “change freeze” during important event for few weeks. It is overall debatable, as there is data that proves it causes more harm than benefit.

But, the change freeze is typically what reveals memory leak as a problem, and generally people just keep restarting nodes or redeploying the same builds to keep everything healthy.

Ofc, usually memory leak is never addressed, as it is extremely hard to get memory dumps at a time you need it(or get them at all) due to security, compliance, privacy and bureaucracy.

Daily (299/373 streak until LC cap)

Should be marked as easy actually.

https://leetcode.com/problems/total-waviness-of-numbers-in-range-i/description/?envType=daily-question&envId=2026-06-04

#daily #medium #nopattern

Good morning folks.
I see +70 new people😆😆

And as always, have no idea, wtf happened, how did you find me?

Thanks https://t.me/interview_runner ❤️


Checked channel. The guy is sharing a lot of interview related things, leetcode, and more practical stuff.

So you all might be interested.

Some time ago we had even System Design mock with Vlad.

We were designing either my Presence in teams or Messenger if I am not mistaken. Was it offer from AWS after that or no, Vlad?

And I guess the initial connection was through our legend: Vlad Ten.

What a small world.

Vlad 1010❤️

Alright, 150 + people, I will need to do some content nearest days prob.

So TLS/SSL custom PKI + cryptography (practical, needed for work) is going to be out soon (article first)

There are stuff I learned while working with ex Google director, have quite a lot to share with you

It is exactly the same feeling as it was with networking. Before Snow and bunch of Staff exGooglers I thought I know tcp/ip, now I realized I didnt know shit.

Daily (300/373 streak until LC cap)

A bit nonsense q, first time I see this kind of "number" dp. Wasn't able to solve on my own.

https://leetcode.com/problems/total-waviness-of-numbers-in-range-ii/submissions/2022794973/?envType=daily-question&envId=2026-06-05

#daily #hard #pattern

So addressing one of the comments, in a fully covered way

Daily (301/373 streak until LC cap)

Easy q, problem for refreshing preffix/suffix pattern pretty much. Definitely recommended as it is used heavily in other problems

https://leetcode.com/problems/left-and-right-sum-differences/description/?envType=daily-question&envId=2026-06-06

#daily #easy #pattern

WHY DO YOU GO TO OFFICE ON SATURDAY?!?!?!??

Me: «давай на ц»