Amazon OA Scary Update 😱 | Very Hard LLM-Proof DSA Problems for SDE Intern / SDE-1 / SDE-2 (2026)

Amazon’s Online Assessment pattern is quietly changing — and this time, it’s not about harder constraints or longer code.

In recent Amazon OAs for SDE Intern, SDE-1, and SDE-2, candidates are facing LLM-proof DSA questions where even advanced AI models give wrong logic or incomplete solutions.

In this video, I break down real Amazon OA questions from 2025–2026 and explain why these problems confuse LLMs but are still solvable by humans with calm analysis.

DSA Problems discussed in the video are present in this Doc Link - https://docs.google.com/document/d/1BrjKFoPw2xxuB1kJGCz1W2BO8O9q5D1jQ_7BxIoU72I/edit?tab=t.0

🔍 Real Questions Discussed in This Video
✅ Q1 — Amazon SDE Intern OA (Jan 2026)

Problem: Maximum & Minimum Median
🔗 Question: https://www.desiqna.in/19134/amazon-oa-2026-set-224-january-maximum-and-minimum-median

📄 Correct Human Solution:
https://docs.google.com/document/d/1Du0ph6mmb3V5Bch7JvKt1-oZSn2re-xu4zDgOCHlMG0/edit

👉 Looks easy, but fails if you apply blind binary search or template thinking.

✅ Q2 — Amazon SDE-1 OA (Jan 2026)

Problem: Sort Substring in Minimum Moves
🔗 Question: https://www.desiqna.in/19135/amazon-oa-2026-set-224-january-sort-substring-minimum-moves

📄 Correct Solution: Uploaded in doc (explained in video)

👉 Simple observation-based logic — but LLMs overcomplicate it and miss key constraints.

✅ Q3 — Amazon SDE-2 OA (Nov 2025)

📄 Question & Analysis:
https://docs.google.com/document/d/1ay6vidljVb-nilRgHoWLfHj4AMNeRiuFIaETGQKp-8k/edit

🤖 Gemini 3 AI Mistake (Very Important):
https://docs.google.com/document/d/1ywYIz-qZRTVAW_XZ3vXDKu785Ut2_56vNCaClhgjLrs/edit

✅ Correct Human Solution (Video):
https://youtu.be/-VjJjrFeFQE

👉 This question clearly shows why LLM-generated logic fails hidden test cases.

🧠 Key Takeaway (Most Important)

These questions are NOT hard.

They fall in Easy–Medium DSA range, but:

Require calm reading

Need clear observation

Punish anxiety-driven coding

Break template + LLM-based approaches

📌 If you read the problem slowly and logically, the solution becomes obvious.

🎯 How to Tackle Amazon OAs in 2026

Stop relying blindly on LLM-generated code

Practice observation-heavy, AI-proof questions daily

Focus on why the solution works, not just what to code

Train for FAANG + Top PBC OA patterns, not generic LeetCode

🚀 Free Resource (Highly Recommended)

👉 51 Hours Free DSA + OA + CP Course
🔗 https://videsiqna.in/

By Kumar K

Designed specifically for 2026 AI-Proof OA & Interview Trends.
𝗟𝗶𝗻𝗸 𝘁𝗼 Kumar K 𝗯𝗲𝘀𝘁 𝗳𝗿𝗲𝗲 𝟱𝟭 𝗵𝗼𝘂𝗿 𝗰𝗼𝘂𝗿𝘀𝗲 for DSA + OA + CP aimed towards increasing the problem solving skills for new hard unseen coding problems - https://videsiqna.in/

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To get best job updates + free DSA + OA + CP Weekend Live Training By Kumar K (Karan) sir join this group - https://chat.whatsapp.com/DMbXcBOUTsoBrEmP6mkyQR

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This video is about DSA(Data Structures and Algorithms) , OA(Online Assessment) of FAANGM(Google,Microsoft,Amazon) , Leetcode Contest , Codechef , Codeforces - DSA Videos Solutions + Preparation strategy in great detail by Kumar K sir
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Видео Amazon OA Scary Update 😱 | Very Hard LLM-Proof DSA Problems for SDE Intern / SDE-1 / SDE-2 (2026) канала Kumar K [Amazon]