This insert-mode map is fairly easy. It will save a lot of keystrokes for opening and closing braces when programming. It works best with cindent on (:set cindent) since vim will automatically indent to the right tabstop. I mapped it to insert-mode Ctrl-F.

Example:

int main() Ctrl-F

will produce:

int main() {
    |
}

insert the following in your vimrc file

" Opening and closing braces
imap <C-F> {<CR>}<C-O>O

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