Determine the Best Skipping Strategy
Reported by candidates from Amazon's online assessment. Pattern, common pitfall, and the honest play if you blank under the timer.
Amazon's May 2025 OA included a skipping strategy problem that sounds deceptively simple until you realize the catch. You're optimizing decisions over a sequence, and the obvious greedy approach will fail on edge cases. This is a dynamic programming problem dressed up as a game theory puzzle. StealthCoder will help you spot the recurrence relation if you freeze mid-problem.
Pattern and pitfall
The core trick is recognizing that you can't just pick the locally best option at each step. You need to track the state space: your current position, your remaining moves, or your current score depending on the problem's exact constraints. Most candidates default to greedy and lose points on medium test cases. The pattern is memoized recursion or a bottom-up DP table where each cell represents the best outcome from a given state. Amazon loves this because it separates fast thinkers from people who code before they think. StealthCoder reads the problem statement carefully and can suggest the state definition you need in real time.
Memorize the pattern. If you can't, run StealthCoder. The proctor sees the IDE. They don't see what's behind it.
You can drill Determine the Best Skipping Strategy cold, or you can hedge it. StealthCoder runs invisibly during screen share and surfaces a working solution in under 2 seconds. The proctor sees the IDE. They don't see what's behind it. Made by an engineer who treats the OA as theater. If yours is tonight, you don't have time to grind. You have time to hedge.
Get StealthCoderRelated leaked OAs
This OA pattern shows up on LeetCode as jump game ii. If you have time before the OA, drill that.
You've seen the question.
Make sure you actually pass Amazon's OA.
Amazon reuses patterns across OAs. Made by an engineer who treats the OA as theater. If yours is tonight, you don't have time to grind. You have time to hedge. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Determine the Best Skipping Strategy FAQ
Is this a standard LeetCode problem?+
Not exactly. Skipping strategy problems have variants on LeetCode, but Amazon's version is usually customized. The pattern is dynamic programming, so if you've done Jump Game II or House Robber, you'll recognize the mindset.
What's the most common mistake?+
Greedy selection at each step. Candidates pick the maximum skip or the best immediate gain and get stuck. You need to compare outcomes from different paths, which demands DP or memoization to avoid timeout.
How much time should I spend on the approach before coding?+
5-10 minutes minimum. Draw a small example on paper. Identify what state you need to track. Write the recurrence. Then code. Jumping straight to code on DP is how you burn 30 minutes.
What if I blank on the recurrence?+
Ask yourself: what decision am I making at each step, and what information do I need to know to make it. Write a brute force first. Then memoize. The recurrence will fall out naturally.
Should I use top-down or bottom-up?+
Top-down (memoized recursion) is faster to code under pressure and easier to debug. Bottom-up is slightly more efficient. Pick whichever you can code correctly in 20 minutes.