Jul 10, 2025 · 4 min read · LeetCode 225. Implement Stack using Queues This post compares two solutions for LeetCode problem 225, which involves implementing a stack using queues. The first solution uses a single queue with O(n) push and O(1) pop/top operations, while the secon...
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Sep 29, 2024 · 17 min read · Continuing my journey with DSA in Java, I am excited to delve into the world of 2D Arrays. This chapter will explore a key concept in data structures that is both foundational and extremely useful in solving complex problems. Let's walk through the c...
Join discussionMar 4, 2024 · 8 min read · Introduction The ability to manipulate images lies at the heart of many fascinating applications in computer vision. One essential operation is image rotation, a transformation that proves invaluable for tasks ranging from orientation correction to s...
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Dec 8, 2023 · 4 min read · In the previous article, we learned what a HashSet is and its different methods. In this article, we are going to learn about the internal implementations of a HashSet in Java. In order to learn any implementation in Java, it is essential to go throu...
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