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1128. Number of Equivalent Domino Pairs

1128. Number of Equivalent Domino PairsDifficulty: EasyTopics: Array, Hash Table, CountingGiven a list of dominoes, dominoes[i] = [a, b] is equivalent to dominoes[j] = [c, d] if and only if either (a ...

04.05.2025 0 Read More

Solving the Two Sum Problem in Rust: Brute Force vs HashMap

I’ve been diving into Rust and decided to challenge myself with some LeetCode problems. One of the first ones I tackled was the classic Two Sum problem — and, it turned out to be a great way to pr...

24.04.2025 0 Read More

2799. Count Complete Subarrays in an Array

2799. Count Complete Subarrays in an ArrayDifficulty: MediumTopics: Array, Hash Table, Sliding WindowYou are given an array nums consisting of positive integers.We call a subarray of an array complete...

24.04.2025 0 Read More

Leetcode - 106. Construct Binary Tree from Inorder and Postorder Traversal

Reconstructing a binary tree from its inorder and postorder traversal is a classic recursive problem that tests your understanding of tree traversal patterns and recursion boundaries. 🔁 Wha...

24.04.2025 0 Read More

Leetcode - 117. Populating Next Right Pointers in Each Node II

Approach The breadth-first search (BFS) approach is ideal for this problem. By performing a level order traversal, we can easily traverse all nodes level by level, ensuring that we can connec...

24.04.2025 0 Read More

2845. Count of Interesting Subarrays

2845. Count of Interesting SubarraysDifficulty: MediumTopics: Array, Hash Table, Prefix SumYou are given a 0-indexed integer array nums, an integer modulo, and an integer k.Your task is to find the co...

25.04.2025 0 Read More

2444. Count Subarrays With Fixed Bounds

2444. Count Subarrays With Fixed BoundsDifficulty: HardTopics: Array, Queue, Sliding Window, Monotonic QueueYou are given an integer array nums and two integers minK and maxK.A fixed-bound subarray of...

26.04.2025 0 Read More

Beginner-Friendly Guide to Solving "Count Subarrays With Fixed Bounds" | LeetCode 2444 Explained (C++ | JavaScript | Python)

🧠 How to Solve: "Count Subarrays With Fixed Bounds" (LeetCode 2444) Problem Rating: Hard Topics: Arrays, Sliding Window, Greedy Hello, amazing developers! 👋 Today, I’m excited to wal...

26.04.2025 0 Read More

3392. Count Subarrays of Length Three With a Condition

3392. Count Subarrays of Length Three With a ConditionDifficulty: EasyTopics: ArrayGiven an integer array nums, return the number of subarray1 of length 3 such that the sum of the first and third numb...

27.04.2025 0 Read More

Leetcode - 114. Flatten Binary Tree to Linked List

Hey everyone! 👋 Today, let’s dive deep into a classic tree problem — flattening a binary tree into a linked list — but doing it in-place (without using extra space). I'll also walk you throu...

27.04.2025 0 Read More

1128. Number of Equivalent Domino Pairs

Solving the Two Sum Problem in Rust: Brute Force vs HashMap

2799. Count Complete Subarrays in an Array

Leetcode - 106. Construct Binary Tree from Inorder and Postorder Traversal

Leetcode - 117. Populating Next Right Pointers in Each Node II

2845. Count of Interesting Subarrays

2444. Count Subarrays With Fixed Bounds

Beginner-Friendly Guide to Solving "Count Subarrays With Fixed Bounds" | LeetCode 2444 Explained (C++ | JavaScript | Python)

3392. Count Subarrays of Length Three With a Condition

Leetcode - 114. Flatten Binary Tree to Linked List

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