Is there a way to include an algorithm from external file?

Question

I mean: when I put some code in my docs I can include it whitout writing all code in main document.

Is there a similar thing for algorithm?

Answer 1

Depending on the kind of result expected, there are two solutions:

Input

Using \input(my_file.tex) allows you to append the content of my_file.tex to your main TeX file. You can nest \input comands inside files you call from your main document.

Include

Using \include(my_file.tex) has the same use but forces a page break and doesn't allow nested \include. However, you can still \input a file inside the document you want to \include.

Note that both commands can be used for any type of LaTeX resource, not only for algorithms. See here for further explanation.