# 22.11.2025
[3190. Find Minimum Operations to Make All Elements Divisible by Three](https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three) easy

Min steps inc/dec to make %3 #easy

# 23.10.2025
[1262. Greatest Sum Divisible by Three](https://leetcode.com/problems/greatest-sum-divisible-by-three/description/) medium

Max sum that %3 #medium

# 24.11.2025
[1018. Binary Prefix Divisible By 5](https://leetcode.com/problems/binary-prefix-divisible-by-5/description/) easy

Prefixes divisible by 5 #easy #brainteaser

# 25.11.2025
[1015. Smallest Integer Divisible by K](https://leetcode.com/problems/smallest-integer-divisible-by-k/description) medium

Smallest number 11..1 % k #medium

# 26.11.2025
[2435. Paths in Matrix Whose Sum Is Divisible by K](https://leetcode.com/problems/paths-in-matrix-whose-sum-is-divisible-by-k/description/) hard

Paths in 2D matrix %k #hard

# 27.11.2025
[3381. Maximum Subarray Sum With Length Divisible by K](https://leetcode.com/problems/maximum-subarray-sum-with-length-divisible-by-k/description/) medium

Max sum of %k-length subarray #medium

# 28.11.2025
[2872. Maximum Number of K-Divisible Components](https://leetcode.com/problems/maximum-number-of-k-divisible-components/description/) hard

Max cuts where every subtree sum %k #hard #dfs

# 29.11.2025
[3512. Minimum Operations to Make Array Sum Divisible by K](https://leetcode.com/problems/minimum-operations-to-make-array-sum-divisible-by-k/description/) easy

Sum % k #easy

# 30.11.2025
[1590. Make Sum Divisible by P](https://leetcode.com/problems/make-sum-divisible-by-p/description/) medium

Min removal to make sum%p #medium #hashmap

# 01.12.2025
[2141. Maximum Running Time of N Computers](https://leetcode.com/problems/maximum-running-time-of-n-computers/description) hard

Max time to run n computers with batteries #hard #bs

# 02.12.2025
[3623. Count Number of Trapezoids I](https://leetcode.com/problems/count-number-of-trapezoids-i/description) medium

Trapezoids count #medium

# 03.12.2025
[3625. Count Number of Trapezoids II](https://leetcode.com/problems/count-number-of-trapezoids-ii) hard

Count trapezoids from points #hard #geometry

# 04.12.2025
[2211. Count Collisions on a Road](https://leetcode.com/problems/count-collisions-on-a-road/description/) medium

Collisions R vs L #medium

# 05.12.2025
[3432. Count Partitions with Even Sum Difference](https://leetcode.com/problems/count-partitions-with-even-sum-difference/description/) easy

Count Left sum - Right sum % 2 #easy

# 06.12.2025
[3578. Count Partitions With Max-Min Difference at Most K](https://leetcode.com/problems/count-partitions-with-max-min-difference-at-most-k/description/) medium

Ways to partition into parts (max-min) at most k #medium #dp #monotonic_queue

# 07.12.2025
[1523. Count Odd Numbers in an Interval Range](https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/description/) easy


Odds l..h #easy

# 08.12.2025
[1925. Count Square Sum Triples](https://leetcode.com/problems/count-square-sum-triples/description/) easy


Count a^2+b^2=c^2 in 1..n range #easy

# 09.12.2025
[3583. Count Special Triplets](https://leetcode.com/problems/count-special-triplets/description) medium

Count a[i]==a[j]*2==a[k] #medium #prefix_sum

# 10.12.2025
[3577. Count the Number of Computer Unlocking Permutations](https://leetcode.com/problems/count-the-number-of-computer-unlocking-permutations/) medium

Permutations to unlock all c[j] right and bigger than c[i] #medium #combinatorics

# 11.12.2025
[3531. Count Covered Buildings](https://leetcode.com/problems/count-covered-buildings/description/) medium


Count surrounded dots on XY plane #medium