Aug 17, 2025 · 4 min read · 📌 Introduction In this post, we’ll solve LeetCode 242: Valid Anagram. We’ll cover a brute force sorting approach and two optimized solutions using frequency counters (an array and a HashMap). We'll also analyze the time and space complexities for ea...
Join discussionAug 17, 2025 · 2 min read · 📌 Introduction In this post, we’ll solve LeetCode 27. Remove Element. We’ll cover the two-pointer approach, and analyze the time and space complexities. Code examples will be in JavaScript, with step-by-step explanations. 👉 Original problem link: L...
Join discussionAug 17, 2025 · 3 min read · 📌 Introduction In this post, we’ll break down LeetCode 217: Contains Duplicate. We will explore three common approaches: the brute-force method, an improved solution using sorting, and the optimal HashSet approach. We'll analyze the time and space c...
Join discussionAug 16, 2025 · 1 min read · Well, here we go again—I’ve started compiling the core set of questions I’ll be grinding over the next few months. I’m kicking things off with Blind 75, which is always a solid starting point. I had almost completed it a few months back, but while it...
Join discussionJun 16, 2024 · 2 min read · "Don't let other exciting techs stop you from practicing DSA. Keep grinding, stay disciplined, start logic building! " Mandatory Sitting In my second year of college, I was enjoying life with my friends. Soon, the third semester flew by, and my seni...
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Dec 30, 2023 · 2 min read · In the cinematic adaptation of this challenge, we find ourselves on an intriguing quest to determine the balance of a mystical binary tree. Our mission is to unveil the tree's equilibrium, where the difference between the heights of the Left Subtree ...
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Dec 28, 2023 · 2 min read · In this problem, we delve into the Flood Fill algorithm, which plays a crucial role in tracing bounded areas with the same color. This algorithm finds applications in various real-world scenarios, such as the bucket-filling tool in painting software ...
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Dec 28, 2023 · 2 min read · In the "Merge Two Sorted Lists" LeetCode problem, you'll encounter a common task in programming: merging two sorted linked lists into a single sorted list. This challenge tests your ability to work with linked data structures and efficiently combine ...
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Dec 27, 2023 · 1 min read · Problem Statement Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. Leetcode link - https://leetcode.com/problems/valid-parentheses/ Idea We can use stack to keep track of the openi...
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Oct 24, 2022 · 4 min read · So, you want to grind LeetCode, get that dream job in MAANG. But, there are more than two thousand problems. You don’t have the time to go through each and every single one. Is there an optimal way to cover all the important data structures and algor...
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