During October 2025, Boh Choi developed a C++ solution for the Programmers problem 'x 사이의 개수' in the Phabala/born2solve repository, addressing the challenge of counting characters between 'x' delimiters within a string. The implementation emphasized algorithmic clarity and robust string manipulation, with comprehensive metadata embedded to support traceability and future reuse. Boh structured the code for maintainability, using clear naming conventions and modular design to facilitate review and extension. No bugs or regressions were reported during this period, reflecting careful problem solving and attention to quality. The work enhanced the repository’s readiness for similar algorithmic challenges.