Codeforces is a site where there are algorithmic problems.
They can be solved in competition or whenever.

I solve all theses problems in Java, but the language is not imposed.

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I use Competitive-dl to download the subject into pdf.

I use TTR PDF To JPG3 to convert each pdf.

I have implemented readmeMaker.jar to automatically create readme files. (source code)

You can directly launch it or you can use the command :

java -jar readmeMaker.jar

It will show the list of the readme files created.

If you want to overwrite them, use the command :

java -jar readmeMaker.jar -f