During July 2025, Jihye511 contributed to the Ssafy_Algo_Study repository by developing two algorithmic features focused on efficiency and maintainability. She implemented a solution for the BOJ 13305 Fuel Cost Optimization problem using a greedy algorithm in Java and Python, enabling the calculation of minimum travel costs by always selecting the lowest-priced gas station encountered. Additionally, she refactored the problem practice codebase, renaming modules and preserving existing logic to improve code clarity and onboarding readiness. Her work demonstrated a strong grasp of algorithms and data structures, with an emphasis on maintainable, CI-friendly commit practices and operational risk reduction.