1p3a Question · Feb 2026

Amazon and TCS 2026 Online Assessment Logic and DSA Guide

SWE OA Hard

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Hey friends, I was scrolling through the Amazon OA and TCS NQT discussions today, and my heart goes out to everyone who is posting: "I solved both coding questions in 20 minutes but still didn't get a

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Hey friends, I was scrolling through the Amazon OA and TCS NQT discussions today, and my heart goes out to everyone who is posting: "I solved both coding questions in 20 minutes but still didn't get an interview link." If that's you, listen closely—it’s not a glitch. In February 2026, the "Coding Section" is only 50% of your score. The real "gatekeeper" has become the Reasoning and Work Simulation section. I’ve been digging into why companies are doing this, and here is the friend-to-friend breakdown: 1. The "Process over Product" Shift Companies like Amazon have added "Interactive Logic Games" to their OA. They aren't testing if you know Dijkstra's; they are testing your Cognitive Agility. How fast can you learn the rules of a new game and optimize your moves? The Tip: Don't rush these games. They track your mouse movements and decision-time. If you click randomly, the AI flags you as "Low Persistence." 2. The "Work Simulation" Trap You’ll get scenarios like: "A senior dev asks you to push a bug fix, but the tester is on leave. What do you do?" * The 2026 Standard: They are looking for Ownership and Data-Driven Decisions. In 2026, the "correct" answer is almost always to verify with data rather than just "following orders." 3. The "TCS Prime" Advanced Coding For those eyeing the 9LPA+ "Prime" roles at TCS, the questions this week involved Bit Toggling and Matrix-based Logistics. They are practical, real-world problems disguised as math. The Secret: If you're stuck, write the Brute Force first. In these specific OAs, "Partial Solves" with clean variable names are often ranked higher than a "Perfect Solve" that looks like it was copy-pasted. My friendly advice for today: If you have an OA coming up this weekend (especially for the TCS BFSI TechHire on Feb 27), spend 30 minutes on HackerRank’s "Logic & Reasoning" practice. Don't let a "game" stop you from showing off your hard-earned coding skills. The market is showing an 8-12% rebound in openings, but the filters are getting creative. Let's be more than just "Code Runners." Let's be "Problem Solvers." Drop a comment—did the Amazon "Work Simulation" feel weird to you too? Let's compare notes. #AmazonOA2026 #TCSNQT #CareerAdvice #FreshersJobs #LeetCodeDiscuss.

About This Question

This is a reported interview question from a amazon interview for a swe role during the oa round reported in 2026.

It covers the following topics: Graph, Math, Matrix .

Difficulty rating: Hard