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Difficulty: Medium
Category: architecture & logic
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Topics: string-manipulation, simulation, c++, low-latency, financial-systems
The Financial Information eXchange (FIX) protocol is a standard electronic communications protocol used in quantitative finance for the real-time exchange of securities transactions. A FIX message consists of a collection of tag-value pairs separated by a delimiter, requiring precise formatting and checksum validation to ensure data integrity during high-frequency trading. Task Implement the build method within the FIXMessageBuilder class that constructs a valid FIX 4.2 message string given a s
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