Luogu is a famous OJ (Online Judge) in China. Many users of Codeforces may know it, but don't know how to participate contests on Luogu. So I'm writing this blog to offer a brief tutorial.

I suppose that you do not have a Luogu account, so let's start from registering.

Step 1. Create An Account

Enter the site: link

Here is the English translation for this page.

You need to fill in:

• username,
• password (and confirm),
• the secret code in the picture,
• your email, (and click the "send verification code" button)
• check your email, and enter the verification code.

Step 2. Login

If you do not login automatically, you need to login in your own.

Enter the site: link

If you logged in successfully, return to the home page https://luogu.com.cn/ and you will see:

in the top-right corner.

Step 3. Register for the Contest

The home page of Luogu looks like this:

After entering the contest page, you should click the register button.