Description: Data structure refactoring is the process of restructuring the data structures in a program or computer system with the aim of improving their efficiency and maintainability. This process involves modifying the way data is organized and stored without altering its external functionality. When performing refactoring, developers seek to optimize performance, reduce complexity, and facilitate long-term code maintenance. Data structures are fundamental in programming as they determine how data is managed and accessed. A well-designed data structure can significantly enhance the execution speed of a program and make the code more readable and easier to understand. Refactoring may include choosing more suitable data structures, such as lists, stacks, queues, trees, or hash tables, depending on the specific needs of the project. Additionally, this process may involve eliminating redundancies, improving modularity, and implementing design patterns that facilitate software scalability and adaptability. In summary, data structure refactoring is an essential practice in software development that contributes to creating more efficient and sustainable applications.