FX Currency Converter - medium architecture & logic question

Order State Machine - easy architecture & logic question

Leaky Bucket Rate Limiter - medium architecture & logic question

Position Netting Engine - medium architecture & logic question

Smart Order Router - hard architecture & logic question

Full Order Book Reconstruction - hard architecture & logic question

Exchange Fee Model - medium architecture & logic question

Binary Protocol Codec - medium architecture & logic question

TWAP Order Scheduler - medium architecture & logic question

Full Price-Time Matching Engine - very_hard architecture & logic question

Basic PnL Calculator - easy architecture & logic question

FIX Message Builder - medium architecture & logic question

Tick-to-Trade Latency Measurer - hard architecture & logic question

Circuit Breaker for Exchange Gateway - hard architecture & logic question

Order Book Snapshot Builder - medium architecture & logic question

VWAP Calculator - easy architecture & logic question

FIX Session State Machine - hard architecture & logic question

Drop Copy Trade Reconciler - hard architecture & logic question

FIX Checksum Validator - easy architecture & logic question

Multi-Leg Order Builder - hard architecture & logic question

Iceberg Order Slicer - medium architecture & logic question

Cancel-Replace Order Logic - medium architecture & logic question

Sliding Window Rate Limiter - medium architecture & logic question

Implied Price Crossing Engine - hard architecture & logic question

Event-Driven Strategy Backtester - very_hard architecture & logic question

Bid-Ask Spread Calculator - medium architecture & logic question

POV Execution Algorithm - medium architecture & logic question

Strongly Typed Order Side - easy architecture & logic question

Pre-Trade Risk Limit Checker - medium architecture & logic question

Epoch-Based Memory Reclamation - hard concurrency question

Barrier Phase Synchronization - medium concurrency question

Atomic Flag Spin-Wait - easy concurrency question

Shared Mutex for Read-Heavy Data - medium concurrency question

Once-Flag Singleton Init - medium concurrency question

Atomic Shared Pointer Config - medium concurrency question

Flat Combining Order Book - very_hard concurrency question

Cooperative Queue Cancellation - easy concurrency question

Counting Semaphore Throttle - medium concurrency question

Fixed Thread Pool Executor - medium concurrency question

Work-Stealing Deque - hard concurrency question

Scoped Lock Portfolio Update - easy concurrency question

Atomic Fetch-Add Statistics - medium concurrency question

Try-Lock Spinlock with Timeout - medium concurrency question

Bounded Producer-Consumer Queue - medium concurrency question

Double-Buffer Atomic Swap - hard concurrency question

Lock-Free MPSC Queue - hard concurrency question

Hazard Pointer Reclamation - hard concurrency question

Condition Variable Event Queue - easy concurrency question

Wait-Free SPSC Queue - very_hard concurrency question

Atomic Price Publisher - easy concurrency question

Latch-Based Service Startup - medium concurrency question

Left-Right Concurrency Pattern - very_hard concurrency question

Future/Promise Async Pricing - medium concurrency question

Userfaultfd Lazy Page Loading - hard systems question

Timestamped Console Logger - easy systems question

Custom Page Table Allocator - very_hard systems question

Structured Syslog Logger - medium systems question

Daemon Process Setup - medium systems question

Process CPU Usage Monitor - easy systems question

eBPF Market Data Packet Filter - very_hard systems question

File Descriptor RAII Wrapper - easy systems question

Stack Size Configuration - medium systems question

io_uring Async Network Stack - very_hard systems question

EventFD & Circular Buffer Simulation - medium systems question

Environment Config Loader - easy systems question

Simulated io_uring Batch Reader - hard systems question

Timer FD Periodic Scheduler - medium systems question

Cgroup Memory Limit Enforcer - hard systems question

C++20 Coroutine Async Reader - medium systems question

Hot-Reload Risk Configuration - medium systems question

Memory-Mapped Tick Data Reader - medium systems question

Pipe-Based IPC Order Relay - medium systems question

Seccomp Sandbox for Strategy - hard systems question

Hardware Counters with Perf Events - hard systems question

Shared Memory Config Store - medium systems question

Process Memory Statistics - medium systems question

Coroutine Price Generator - medium systems question

Graceful Shutdown Handler - easy systems question

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