Bug Report

Background

As I keep updating the algorithm tutorials, the website and its plugins have more and more features, but they also become more complex and may have bugs.

So I need to get your feedback quickly, so I can fix bugs fast and make sure everyone has a good experience.

Most problems are caused by your browser caching old content. Before sending feedback, please check the common issues list below to see if there’s already a solution.

Common Issues on the Site

Lost your order?

You can check your purchase history on the Order Page. If you have subscribed before but see no record, it’s usually because you used the wrong login method.

For example, you used GitHub to log in and paid, but now you use Google to log in. This creates a new account, so your order is not there.

How to solve: Try logging in with other methods to recover your order. If you still can’t find it, please email me for help.

On the User Profile page, you can bind more than one login method for convenience.

After subscribing, why can’t I see unlocked solutions in the plugin?

You need to refresh the plugin data to unlock solutions. See the Chrome Plugin Guide, vscode Plugin Guide, or JetBrains Plugin Guide for step-by-step instructions.

Because of network settings, only overseas IPs can use GitHub or Google login.

If you use a proxy, make sure your proxy is set to “global mode”, so labuladong.online is using the proxy. Then refresh the page a few times, and you should be able to log in with GitHub or Google.

On the User Profile page, you can bind more than one way to log in.

Page is stuck or not loading?

Usually this is a network problem. If the site has updated resources but your browser or the CDN cached old files, some pages might not open.

Solution: Try clearing your browser cache and refresh the page. If this doesn’t help, use incognito mode, or try a different network to see if it’s a local problem.

If you are using a proxy, turn it off to visit the site, or remove “labuladong.online” from the sites going through the proxy.

Can’t find content in the top right search bar?

This is also usually a network issue. Try the solutions above.

Member content keeps loading but never shows?

This is also a network problem. Try the solutions above.

The visual panel is black?

This is also usually caused by a network problem and not loading the latest resources. Try the solutions above.

If you still can't solve the problem, please contact me.

Plugin Common Problems

Each plugin’s common problems and fixes are included in its own document. See Chrome Plugin Guide, vscode Plugin Guide, and JetBrains Plugin Guide.

Feedback by Email/WeChat

For payment, access, or site problems that stop you from using the site, you can contact me by email or WeChat. I will fix it as fast as possible:

Email: labuladong@foxmail.com
WeChat: Only for paying users. Go to Subscribe Page to add my WeChat or join the site’s WeChat group.

Please clearly describe your problem, and include screenshots and error info if possible. For payment or access issues, please also send your User ID and order number.

Feedback by Github Issue

For any bug or suggestion about the website or plugins, you can use GitHub Issues. This is open so others can see and help.

Visit this link to view existing Issues:

https://github.com/labuladong/fucking-algorithm/issues/

Click “New Issue” at the top of the list to start a new Issue.

When you open an Issue, note:

GitHub Issues are public. Do NOT post any private info, like user ID, order numbers, account or passwords, website token/cookie, etc.
Before making a new Issue, search to see if someone else has the same problem and if a solution is already posted.

Feedback by Comment

Every article on the site has a comment section at the bottom. For small problems such as typos or code bugs that are not urgent, you can leave a comment. I check and fix these regularly.