Difficulty: Hard
Category: data_structures
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: hash-map, open-addressing, linear-probing, low-latency, c++
High-frequency trading systems require low-latency data structures to minimize cache misses caused by pointer chasing in standard hash maps. A Flat Map optimizes memory access patterns by storing entries in a contiguous array using open addressing and linear probing. This approach significantly reduces access time for critical order book and market data lookups. Task Implement a FlatMap class that utilizes open addressing with linear probing to store key-value pairs in a single contiguous std::
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