Amazon DSA Interview Questions

What Amazon asks in the DSA round

Amazon pairs medium-difficulty DSA with heavy Leadership Principle behavioural rounds. Graphs on grids, heaps, and BFS/DFS appear constantly — and every technical round has a behavioural component.

Across the 2062 questions on this page, the weight sits on these patterns:

• Dynamic Programming — 318 questions · read the dynamic programming guide
• Greedy — 222 questions · read the greedy guide
• Breadth-First Search — 142 questions · read the breadth first search (bfs) guide
• Binary Search — 125 questions · read the modified binary search guide
• Database — 108 questions
• Math — 104 questions
• Two Pointers — 89 questions · read the two pointers guide
• Depth-First Search — 83 questions · read the depth first search (dfs) guide

How to prepare for the Amazon interview

1. 1. Start at the top of the list above. The patterns are ordered by how often Amazon uses them, so the first two or three buy you the most coverage per hour.
2. 2. Solve by pattern, not at random. Doing eight dynamic programming problems in a row is what makes the ninth recognisable in an interview — jumping between topics does not.
3. 3. Tick problems off as you go so the gaps are visible. The per-pattern counts tell you which Amazon topic you have actually covered.
4. 4. Write the approach before the code. Amazon interviews are judged on the reasoning as much as the working solution.
5. 5. Pair this with the pattern guides when a topic is new, and the system design sheet if the role is senior enough to have that round.
6. 6. If this is a campus or off-campus drive rather than a lateral move, the placement preparation guide covers the stages around the DSA round — aptitude, core subjects and the HR interview — in the order they actually happen.

Amazon interview questions — FAQ

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