Welcome to TOYOJ! Register an account and start coding!

During registration, pay attention to the following:

• Register only one account and use your university ID (学号) as username. Extra accounts will be removed.

• Use an authentic email address, you will receive a verification email during registration.

• Pick proper organization, otherwise you will not be able to see the problems.

After you have successfully registered an account, login and join the sample contest, then solve the "A Plus B" problem. This will help you get familiar with the OJ system.

Happy coding, and have fun! 😄😄😄