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

#daily #medium

Daily

Should be easy IMO.

https://leetcode.com/problems/number-of-laser-beams-in-a-bank/submissions/1813045010/?envType=daily-question&envId=2025-10-27

#daily, #medium

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

#daily #medium

Daily

Actually pretty satisfying problem. Enjoyed, and it is not hard at all.

https://leetcode.com/problems/count-unguarded-cells-in-the-grid/description/?envType=daily-question&envId=2025-11-02

#daily #medium

Daily

Pretty nice problem, and not hard

https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/?envType=daily-question&envId=2025-11-03

#daily #medium

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

#daily #medium

Daily

Mid, but it is close to hard I would say for building an intuition

https://leetcode.com/problems/minimum-operations-to-convert-all-elements-to-zero/description/?envType=daily-question&envId=2025-11-10

#daily #medium

Daily

Eventually, good old DP problem, love it.

https://leetcode.com/problems/ones-and-zeroes/description/?envType=daily-question&envId=2025-11-11

#daily #medium

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

#daily #medium

Daily

Not hard, not bad, greedy problem.

https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end/description/?envType=daily-question&envId=2025-11-13

#daily #medium

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

#daily #medium

Daily

As I told you before, daily is piece of shit. No way this is medium. But yeah.

https://leetcode.com/problems/count-the-number-of-substrings-with-dominant-ones/description/?envType=daily-question&envId=2025-11-15

#daily #medium

Daily

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

#daily #medium

Daily

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


#daily #medium

Daily

Pretty hard DP to me, but solvable with hints

https://leetcode.com/problems/greatest-sum-divisible-by-three/?envType=daily-question&envId=2025-11-23

#daily #medium

Daily

A bit of math bullshit, does not recommend, but with hints and simple run in the head it is not that hard.

https://leetcode.com/problems/smallest-integer-divisible-by-k/description/?envType=daily-question&envId=2025-11-25

#daily #medium