500+ quant interview questions for Jane Street, Citadel, Two Sigma, DE Shaw, and other top quantitative finance firms.
Statistical analysis and quantitative modeling problems
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Difficulty: Easy
Category: systems
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: systems, parsing, c++, linux
Low-latency trading systems require rigorous performance monitoring to ensure deterministic execution times and prevent resource exhaustion. In Linux environments, quantitative developers frequently interact with the /proc pseudo-filesystem to extract telemetry data without the overhead of external monitoring agents. Task Implement the calculateUsage method to determine a process's CPU usage percentage over an interval. The function receives two stat file snapshots (stat1, stat2), the elapsed_t
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