6d ago · 21 min read · TLDR: Move a slow pointer one step and a fast pointer two steps through a linked structure. If they ever meet, a cycle exists. Then reset one pointer to the head and advance both one step at a time —
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6d ago · 17 min read · TLDR: Reversing a linked list in O(1) space requires three pointers — prev, curr, and next. Each step: save next, flip curr.next to point backward, advance both prev and curr. Learn this once and you unlock four reversal variants that appear constant...
Join discussionJan 12 · 4 min read · 🙋♂️Hi In this story, we will uncover how linked lists were first used to solve data structure challenges posed by simple arrays of data. Let’s begin. Prologue: A Problem Without Order It was the early 1950s, and computers were still massive rooms o...
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Jan 6 · 4 min read · Stack হচ্ছে একধরনের লিনিয়ার ডাটা স্ট্রাকচার যেখানে ডাটাগুলো টপ পজিশন থেকে ইন্সার্ট ও ডিলিট হয়। অর্থাৎ , এটি LIFO Principal ফলো করে। LIFO → Last In First Outঅর্থাৎ , সবার শেষে যে ঢুকবে সেই সবার শেষে বের হবে। আরেকটু সহজ উদাহারন দিয়ে বুঝানো যাক। ধরো , ত...
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Jan 3 · 6 min read · লিঙ্কড লিস্ট হচ্ছে একধরনের লিনিয়ার ডাটা স্ট্রাকচার যেখানে ডাটা একটার পর একটা সিরিয়ালি থাকে। তবে লিঙ্কড লিস্ট Consecutive Memory Location ফলো করে না। অর্থাৎ , মেমরিতে সিরিয়ালি ডাটাগুলো স্টোর হয় না। মেমরি তে বিভিন্ন জায়গায় ডাটা স্টোর হয়। লিঙ্কড লিস্ট ড...
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Sep 28, 2025 · 1 min read · What a week it's been!This week was both challenging and super exciting — I finally got a good grip on recursion and linked lists. 🧠 Mindset: One thing I’ve realized: DSA isn’t easy — and that’s okay. It takes time, patience, and a lot of practice.A...
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Sep 21, 2025 · 3 min read · A linked list is a fundamental data structure in software development. Unlike arrays, it allows efficient insertion and deletion of nodes. Linked lists are made of nodes. These nodes generally store a value and a pointer to the next node. The head of...
Join discussionSep 19, 2025 · 2 min read · Instead of just going through a class and trying to complete it, which can be a big trap, the best way to internalize concepts is by completing micro projects focused on the current topic in the class. I was unsure about linked lists, and in an attem...
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Sep 4, 2025 · 4 min read · Linkee positions itself as a seamless, AI-powered solution to automate the laborious process of backlink outreach. Here’s how the platform aims to streamline SEO efforts: AI-driven discovery: Automatically identifies relevant websites by evaluating...
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