Amazon SDE-1 Intern Online Assessment Experience:

Here’s what I learned - beyond just the questions:

It had 4 sections — and each one tested something different.

1. Coding Assessment (2 DSA Problems) | 70 minutes

➤ Problem 1: Maximize Zeros After Prefix Reduction — Repeatedly reduce prefix segments (no zero allowed) to maximize total zeroes in the array.
— Approach: Greedy + Segment-wise Simulation
— Topics: Prefix Operations, Simulation, Optimization
— Passed: 10/15 test cases (TLE on large inputs)

➤ Problem 2: Warehouse Shipment Allocation — Choose & Upgrade a warehouse to handle a shipment, rest should meet backup capacity.
— Approach: Binary Search on sorted capacities + Prefix Sum
— Topics: Greedy, Capacity Planning, Optimization
— Passed: 15/15 test cases

Both were good tests of logic + edge case thinking.

2. Amazon Leadership Principles Round | 15 minutes

➤ More like scenario - based questions — testing how you think, prioritize, and lead without authority.
— No right answers, but you have to be consistent.

3. Workstyle Assessment | 60 minutes

➤ More about your personality than performance — but you can’t fake it.
Just answered with what felt real.

4. Final Survey | 5 minutes

➤ Mostly feedback on your experience.

What I liked:
— Every section had a different vibe.
— Not just coding, but decision-making, values and mental clarity were tested.

Let’s see where this goes.
For now, I’m just glad I showed up prepared and did what I could.