Real Vim ninjas count every keystroke - do you?

Pick a challenge, fire up Vim, and show us what you got.

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$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 592e0f555b60ba0009000001

Stairstep digits

Remove the evens. Double the odds.

Start file
123456789
End file
1133557799

View Diff

A trick a golfer should know, but I don't think
many of you do. This challenge will fix that.

Solutions by @prstad:

Unlock 2 remaining solutions by signing in and submitting your own entry
Created by: @udioica

112 active golfers, 237 entries

Solutions by @prstad:
9
#10 - Stanislav / @prstad

06/05/2017 at 06:00AM

13
#>67 - Stanislav / @prstad

06/05/2017 at 05:58AM