Google Code-in

The idea behind this task would be to give an easy-to-understand/non-technical explanation of "Common Subexpression Elimination" code optimization technique.

This explanation might be added to the rco's documentation page. A new topic named "Idea" must be added before the "Background" topic. In order to add it, the rco project must be forked, and the file https://github.com/jcrodriguez1989/rco/blob/master/vignettes/opt-common-subexpr.Rmd modified. This file is an R markdown file, it is recommended to install RStudio to easily compile this file.

Create a pull request to the repository with your work, and provide the pull request link as a comment to the task.