The Tower Research Capital C++ & Algorithms interview is stage 4 of 6 in the Tower Research Capital interview process, after the Probability & Brain-Teasers. Format: 60 min - coding + C++ internals. For Core Developer roles: hard algorithm problems plus C++ internals (virtual destructors, const correctness, memory model).
Preparing for this round? Practice the 33 questions mapped to the Tower Research Capital C++ & Algorithms, with worked solutions. A free account saves your progress.
What the C++ & Algorithms tests
Clean, efficient, correct code is expected.
QuantVault maps 33 practice problems to this round. By topic, the biggest groups are coding (33); by difficulty, 4 easy, 21 medium and 8 hard. 31 of them were reported by candidates who interviewed at Tower Research Capital, most recently in Jun 2026.
- Engineering phone screens include live C++ coding with a working engineer, about an hour each.
Who takes this round: Core Developer (C++) candidates. See the full Tower Research Capital process and who takes each round.
How to prepare for the C++ & Algorithms
- Know C++ cold -- virtual destructors, const correctness, pointers, the memory model.
- State complexity up front, then optimize -- latency mindset.
- Practice matrix/array and parsing problems -- search in a sorted matrix, RPN, largest zero submatrix recur.
Further reading: C++ and low-latency interview questions · How quant superdays work · Behavioral questions at trading firms · Market-making game interview guide.
Question types in this round
The 1 largest question types in the Tower Research Capital C++ & Algorithms practice set; across them the most common sub-topics are data structures, complexity analysis, C++, graph algorithms, sorting and searching, dynamic programming. The questions themselves, with worked solutions, are in the round practice.
Coding33 in this round
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Frequently asked questions
What is the Tower Research Capital C++ & Algorithms interview?
It is stage 4 of 6 in the Tower Research Capital interview process, after the Probability & Brain-Teasers. Format: 60 min - coding + C++ internals. For Core Developer roles: hard algorithm problems plus C++ internals (virtual destructors, const correctness, memory model). Clean, efficient, correct code is expected.
How long is the Tower Research Capital C++ & Algorithms interview?
Candidates report: 60 min - coding + C++ internals.
What questions come up in the Tower Research Capital C++ & Algorithms interview?
The practice set QuantVault maps to this round centers on coding.
How should I prepare for the Tower Research Capital C++ & Algorithms interview?
Know C++ cold -- virtual destructors, const correctness, pointers, the memory model. State complexity up front, then optimize -- latency mindset.
What comes after the C++ & Algorithms?
The Quant / Statistics Round (stage 5 of 6). Format: 45-60 min - video.
Practice the Tower Research Capital C++ & Algorithms round
Work the 33 mapped practice problems with progress tracking, then move to the next stage of the Tower Research Capital funnel.