https://mybinder.org/ Should I make a binder ? :) Or if there is a binder link, it's well hidden.

I just noticed that links in README are relative. They don't work in PyPI site repo page. (And the cool algorithms logo don't show up). Should we make them absolute links, or is there a better way?
Also, how do we update this current version to PyPI?
@danghai @keon What's our progress with Sphinx?

没错，我来杠自己写的文章【滑稽】

刚刚翻了一下Notepad++ - OI Wiki这个页面，发现GIF或许有碍阅读，一个GIF加载需要较长时间，对于网速慢的同学就是一场灾难

目前可以考虑在GIF之外再写一遍文字，但是GIF还是会占用加载时间；或者页面只保留文字，给一个GIF的链接；再不济只保留文字，删去GIF

欢迎投票:)

[![](https://api.gh-polls.

Add resources for R language - books, blogs, video lessons, etc.

We need to improve the comments explaining the main ideas / insights of the solution

Add the Divisor Sum property of Euler's Totient Function and an algorithm to calculate Totients from 1 to n in O(n ln(ln(n))) which can be really helpful especially in Competitive Programming.

I'll soon send a PR for this.

Sometimes it'd be useful for the judge to be able to send some log packets to the site, where they can be logged through Django's logger. This would enable certain messages to be filtered and logged to more visible places (e.g., Slack).

For example, if a judge fails to initialize a runtime, this should be reported to somewhere an admin can see, even if it's not a fatal error.

We're mixing snake_case, camelCase and UpperCamelCase. I think we should go with camelCase except where consistency with STL is desired (like defining a lower_bound method)

Do you think a more detailed README file describing each source code file in the "code" folder might be made available in the future?

When you run the database migrations as a user that differs from the webserver / FPM user, the var/cache/prod (or dev) directory will be owned by that user, since we use a Symfony shell command to migrate and load initial data.
If you then want to do anything in DOMjudge, it will crash.

We have multiple people run into this already, so we should probably fix it. Or at least add a clear not

Hi friends, since many of you are starting to contribute for Hacktoberfest.

To not disallow beginners to contribute to the project, this issue can be taken up by anyone starting to learn data structures and algorithms.

You need to start solving the problems in the Hackerrank's Tracks and add your solutions in the branch named trackname in a new f

As you can see here, half of download_history.py is not covered by unittests.
At least, I want to test DownloadHistory.get fucntion.

We can test this module by 3 steps.

• Clear utils.cache_dir / 'download-history.jsonl'.
• Execute oj d, or directly instanciate DownloadHistory and