The DRY principle is a fundamental concept in clean coding practices, emphasizing the importance of eliminating code redundancy by reducing logic repetition. This principle can greatly improve maintainability and reduce errors by centralizing functionality into reusable components. According to The Pragmatic Programmer, each piece of knowledge should have a single, unambiguous, authoritative representation within a system. By following this principle, developers can ensure that changes only need to be made in one place, reducing the risk of errors and making code easier to manage.

Source: https://dev.to/moh_moh701/c-clean-codedry-principle-4e5c