Debugging is a fundamental skill in competitive programming because it allows you to quickly identify and fix issues that arise during coding. With time constraints in contests, errors in code—whether logical, syntactical, or related to edge cases—need to be diagnosed and resolved efficiently. Effective debugging involves understanding common error types and systematically checking each part of the code. Techniques such as printing variable values at critical points, using breakpoints in an IDE, and running test cases with varied inputs help pinpoint issues. Additionally, reviewing the problem requirements and matching them with the code logic can reveal inconsistencies or overlooked details. Developing debugging skills helps you gain confidence in your code, as it reduces wasted time on errors and strengthens your problem-solving capabilities, making it a crucial skill for competitive success.