andreyka26_se
YEAH BOYπ
1 year, and 2 days ago π
I think maybe I should push for 1k, just to flex even moreπππ
I think maybe I should push for 1k, just to flex even moreπππ
β€12π4π₯2
Daily (290/373 streak until LC cap)
Pretty easy, go for it.
https://leetcode.com/problems/count-the-number-of-special-characters-i/description/?envType=daily-question&envId=2026-05-26
#daily #easy #pattern
Pretty easy, go for it.
https://leetcode.com/problems/count-the-number-of-special-characters-i/description/?envType=daily-question&envId=2026-05-26
#daily #easy #pattern
β€2
Folks, 600 problems and 200 daily streak is nothing actually.
Check the REAL BEASTS whom I found on Ukrainian FAANG group.
Check the REAL BEASTS whom I found on Ukrainian FAANG group.
π€―7π₯6
I remember, I was fake senior at Epam already, at 20. My uni friends decided to go for university olympiad algos contest. They also are seniors as well (it was gold era in Ukraine for swe)
Some 13-15 years old kids were also participatingβ¦
It was similar experience to first sparring with Candidate for Master of Sports when I started doing boxing.
These kids fucked us up soooo hard. They have completed 5 problems, by the time we had solved one and had been on our way to solve the secondπππ
After this, my ego got deep trauma I realised, it is not my thing, so my peak is some average hard leetcode problem with 40+ acceptance. This is peak. I am still pretty bad at it to be honest.
Some 13-15 years old kids were also participatingβ¦
It was similar experience to first sparring with Candidate for Master of Sports when I started doing boxing.
These kids fucked us up soooo hard. They have completed 5 problems, by the time we had solved one and had been on our way to solve the secondπππ
After this, my ego got deep trauma I realised, it is not my thing, so my peak is some average hard leetcode problem with 40+ acceptance. This is peak. I am still pretty bad at it to be honest.
π8
Daily (291/373 streak until LC cap)
not bad daily, not hard, just regular medium
https://leetcode.com/problems/count-the-number-of-special-characters-ii/description/?envType=daily-question&envId=2026-05-27
#daily #medium
not bad daily, not hard, just regular medium
https://leetcode.com/problems/count-the-number-of-special-characters-ii/description/?envType=daily-question&envId=2026-05-27
#daily #medium
π4π₯1
https://www.snowflake.com/en/news/press-releases/snowflake-expands-aws-collaboration-with-6b-commitment-to-accelerate-enterprise-agentic-ai-adoption/
My guess, but I am way too incompetent in stock market dynamics and laws..
My guess, but I am way too incompetent in stock market dynamics and laws..
π€―2β€1
andreyka26_se
https://www.snowflake.com/en/news/press-releases/snowflake-expands-aws-collaboration-with-6b-commitment-to-accelerate-enterprise-agentic-ai-adoption/ My guess, but I am way too incompetent in stock market dynamics and laws..
Joking. Of course this is because I stayed late nights, learned all the cryptography for one project and educated people about it so no one makes mistakes.
π₯12π6β€1
Daily (292/373 streak until LC cap)
Amazing problem, it is not hard actually, I would rate as mid. I had this leetcode pattern in my real interview for big tech, therefore highly recommended.
https://leetcode.com/problems/longest-common-suffix-queries/?envType=daily-question&envId=2026-05-30
#daily #hard #pattern #recommend
Amazing problem, it is not hard actually, I would rate as mid. I had this leetcode pattern in my real interview for big tech, therefore highly recommended.
https://leetcode.com/problems/longest-common-suffix-queries/?envType=daily-question&envId=2026-05-30
#daily #hard #pattern #recommend
β€4
Daily (293/373 streak until LC cap)
Easy problem, easy day.
https://leetcode.com/problems/minimum-element-after-replacement-with-digit-sum/description/?envType=daily-question&envId=2026-05-30
#daily #easy #nopattern
Easy problem, easy day.
https://leetcode.com/problems/minimum-element-after-replacement-with-digit-sum/description/?envType=daily-question&envId=2026-05-30
#daily #easy #nopattern
π4
Daily (294/373 streak until LC cap)
(Still unsolved, this is for tomorrow)
18% of acceptance, Uber asked it, it is segment tree....
If you are asked segment tree during the interview, probably the role is going to be hard and your interviewer is crazy tough on algos.
Will solve tomorrow, but don't waste time, I think it is better to reject company that asks you segment tree
https://leetcode.com/problems/block-placement-queries/description/?envType=daily-question&envId=2026-05-30
#daily #hard #pattern
(Still unsolved, this is for tomorrow)
18% of acceptance, Uber asked it, it is segment tree....
If you are asked segment tree during the interview, probably the role is going to be hard and your interviewer is crazy tough on algos.
Will solve tomorrow, but don't waste time, I think it is better to reject company that asks you segment tree
https://leetcode.com/problems/block-placement-queries/description/?envType=daily-question&envId=2026-05-30
#daily #hard #pattern
β€1π1
Sorry I disappeared and didn't post daily for couple of days as I was working till 1-2AM for Snow. Will tell you more soon, but yeah, not that happy about that.
π€―13π€2
andreyka26_se
Daily (294/373 streak until LC cap) (Still unsolved, this is for tomorrow) 18% of acceptance, Uber asked it, it is segment tree.... If you are asked segment tree during the interview, probably the role is going to be hard and your interviewer is crazy toughβ¦
I will post about Segment tree and Fenwick tree + simple problems for them so that you all have the pattern under you hand to recall it quickly before the interview.
Don't think segment trees are complicated - therefore they are not asked during the real interview, they actually ARE asked, on jun/mid position in big tech (I know it was asked in Databricks)
Don't think segment trees are complicated - therefore they are not asked during the real interview, they actually ARE asked, on jun/mid position in big tech (I know it was asked in Databricks)
π12
I was feeding this Mr Orange with my ham all this time and yesterday decided to buy him a βcatsβ food.
This mf seems like prefers ham much more still
This mf seems like prefers ham much more still
π13β€7
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He brought a friendππ
Now I need to provide for them apparently. I guess I need to push for promotion..
Now I need to provide for them apparently. I guess I need to push for promotion..
π9β€7
Daily (295/373 streak until LC cap)
Actually it is easy question, I don't know why it is labeled as medium. Go for it.
https://leetcode.com/problems/destroying-asteroids/description/?envType=daily-question&envId=2026-05-31
#daily #medium #nopattern
Actually it is easy question, I don't know why it is labeled as medium. Go for it.
https://leetcode.com/problems/destroying-asteroids/description/?envType=daily-question&envId=2026-05-31
#daily #medium #nopattern
π₯2
andreyka26_se
I will post about Segment tree and Fenwick tree + simple problems for them so that you all have the pattern under you hand to recall it quickly before the interview. Don't think segment trees are complicated - therefore they are not asked during the realβ¦
Heap.
As first prerequisite to understand the "array-based" representation of the trees -> we can check heap data structure.
Heap is used to efficiently get minimum (minheap) or maximum (maxheap) element.
You can do it just with plain array: insert all new items, and scan array to find the minimum with
It can be used as priority queue, in python it is implemented via
One of the applications can be Dijkstra algorithm that is using priority queue under hood.
In the comments we will discuss different implementations and tree representations.
#leetcode #heap #datastructures
As first prerequisite to understand the "array-based" representation of the trees -> we can check heap data structure.
Heap is used to efficiently get minimum (minheap) or maximum (maxheap) element.
You can do it just with plain array: insert all new items, and scan array to find the minimum with
O(n) but heap allows O(log(n)) for both insert and findmin() operations.It can be used as priority queue, in python it is implemented via
heapq.One of the applications can be Dijkstra algorithm that is using priority queue under hood.
In the comments we will discuss different implementations and tree representations.
#leetcode #heap #datastructures
π6
Daily (296/373 streak until LC cap)
Easy, greedy problem
https://leetcode.com/problems/minimum-cost-of-buying-candies-with-discount/description/?envType=daily-question&envId=2026-06-01
#daily #easy #nopattern
Easy, greedy problem
https://leetcode.com/problems/minimum-cost-of-buying-candies-with-discount/description/?envType=daily-question&envId=2026-06-01
#daily #easy #nopattern
π3