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Amazon vs Google vs Meta: The DSA Patterns Each Company Tests

1d ago · 8 min read · You've drilled sliding window. You've drilled binary search. You've solved Two Sum, Three Sum, and Group Anagrams enough times to write them blindfolded. The next medium that lands in front of you is

Amazon Bar Raiser: The 10 Minutes That Decide the Coding Round

2d ago · 11 min read · You've been preparing for an Amazon coding loop the same way you'd prepare for Google or Meta. You've gone deep on two or three pattern families, you've timed yourself on roughly a hundred problems, y

Arrays vs Linked Lists: The O(1) Insertion Myth

3d ago · 8 min read · You read "linked lists give O(1) insertion" and reach for one the next time a problem says "insert." Forty minutes later, your solution is technically O(n) and you're not sure where the advantage went

AMAlex Mateoalexmateo.hashnode.dev

Graph Algorithms for Coding Interviews: When to Use BFS, DFS, or Dijkstra

4d ago · 11 min read · Graphs are the most feared topic in coding interviews — not because they're impossible, but because most people learn the algorithms in isolation without understanding when to use each one. This guide

VOVitaliy Obolenskiyskillhacker.hashnode.dev

Why LeetCode No Longer Guarantees an Offer: The Preparation Gap Everyone Ignores

4d ago · 8 min read · The Death of the "Algorithmic Race": Why You're Failing Interviews Let's cut through the noise. You've solved 547 LeetCode problems. Your GitHub is a graveyard of optimized solutions. You can reverse

YYashrajyashrajxdev.blog

Sliding Window, Two Pointers, and Prefix Sums: The Pattern Trio That Cracks Array Interviews

6d ago · 22 min read · There's a moment every developer hits — usually mid-interview — where they realize a brute-force nested loop is the wrong instinct. The array is in front of you, the constraint is clear, but something

ATAditya Trivediadityatrivedi.hashnode.dev

Leetcode System Design

6d ago · 7 min read · The first thing people usually do while designing systems is jump directly into databases, microservices, Kubernetes, Redis, queues, and scaling. That is the wrong approach. When designing systems lik

How to Build Algorithmic Intuition for Coding Interviews

6d ago · 9 min read · You've solved more than 500 LeetCode problems. The easys take ten minutes. The mediums you've seen variations of take twenty. Then a medium lands in a phone screen that doesn't look like anything in y

When the Interviewer Asks: “Why Does This Algorithm Work?”

May 6 · 9 min read · You finish coding a binary search. The interviewer asks "why does this work?" You point at the code. They wait. The pointing isn't an argument, and the silence stretches. This is the moment most candi

AlgoExpert vs NeetCode: Why Watching Walkthroughs Isn't Enough

May 5 · 9 min read · You've watched the AlgoExpert video on Binary Tree Maximum Path Sum. Twice, even. The postorder helper makes sense, the global update makes sense. You can re-derive the code on a sheet of paper if you