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 @Sakigw:

Unlock 8 remaining solutions by signing in and submitting your own entry
Created by: @udioica

116 active golfers, 245 entries

Solutions by @Sakigw:
9
#1 - Saki Gw / @Sakigw

05/31/2017 at 12:22PM

12
#>45 - Saki Gw / @Sakigw

05/31/2017 at 09:57AM

13
#>50 - Saki Gw / @Sakigw

05/31/2017 at 07:46AM

15
#>110 - Saki Gw / @Sakigw

05/31/2017 at 08:40AM

15
#>110 - Saki Gw / @Sakigw

05/31/2017 at 11:52AM

16
#>111 - Saki Gw / @Sakigw

05/31/2017 at 07:34AM

16
#>111 - Saki Gw / @Sakigw

05/31/2017 at 08:38AM

17
#>111 - Saki Gw / @Sakigw

05/31/2017 at 11:52AM