Quant Interview Practice Questions

In high-frequency trading and ultra-low latency systems, memory-mapped files are frequently utilized for inter-process communication (IPC) and rapid crash recovery. Because these files may be mapped to different base addresses across processes, custom memory allocators must rely on integer offsets rather than absolute memory pointers to ensure memory safety and consistency. Task Implement a custom memory allocator over a flat byte array (std::vector<unsigned char>) that simulates a memory-mappe