Samsung R&D DSA Interview Questions

What Samsung R&D asks in the DSA round

Samsung's coding test is famously long-form — a single hard simulation or search problem in a 3-hour window. Practice BFS, DFS and simulation heavily.

Across the 66 questions on this page, the weight sits on these patterns:

• Dynamic Programming — 16 questions · read the dynamic programming guide
• Breadth-First Search — 10 questions · read the breadth first search (bfs) guide
• Two Pointers — 7 questions · read the two pointers guide
• Greedy — 5 questions · read the greedy guide
• Binary Search — 4 questions · read the modified binary search guide
• Shortest Path — 3 questions · read the graphs guide
• Backtracking — 2 questions · read the backtracking guide
• Design — 2 questions · read the design data structure guide

How to prepare for the Samsung R&D interview

1. 1. Start at the top of the list above. The patterns are ordered by how often Samsung R&D 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 Samsung R&D topic you have actually covered.
4. 4. Write the approach before the code. Samsung R&D 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.

Samsung R&D interview questions — FAQ

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