During December 2024, Dongmin developed a robust search algorithm for the geultto/daily-solvetto repository, focusing on the problem of locating a target in a rotated sorted array where the pivot is unknown. He implemented a modified binary search in Java, leveraging his skills in algorithms and data structures to ensure logarithmic time complexity even in edge cases. The solution addressed the challenge of efficiently narrowing the search space in rotated datasets, making it suitable for integration into core search workflows. While the work was limited to a single feature, it demonstrated depth in algorithmic design and careful attention to performance considerations.