Sample .vimrc to solve one of the #vimgolf challenges

.vimrc

:set compatible
let @y=':g/./|s/{/(/|s/}/)/|s/\[\S$/{/|s/^]/}/|s/(\S$/{/|s/)\S$/}/^M'
let @z=':2g/./|s/(/[/|s/)/]/^M'

usage.txt

To solve this challenge:  http://vimgolf.com/challenges/4d1a522ea860b7447200010b

Use the above .vimrc and then type: @y@zZZ

Technically, you don't need two macros, but any submission with five 
or less characters is falsely accused of "cheating".

"cheating" to me means tricks like pasting from the clipboard the final 
answer. When you are using purely native functionality in the app which 
you are challenged to knowing how to use well, then that's far from 
cheating, IMHO.