According to official website, anyone who inquires about Krypton Competition Network can't participate in the National College Mathematics Competition after registering. But it should be noted that if you don't participate in the competition, you won't get any awards or certificates. Those who have already signed up for the National Mathematics Competition for College Students, but cannot participate for other reasons, can explain the situation to the organizers and apply for withdrawal. When applying for leaving school, they need to provide supporting materials, such as sick leave certificate and personal leave certificate.