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 5fa95fbdd285680008e41e4b

swap number pairs

Swap the numbers in a bunch of 2-element arrays.

Start file

[2, 1], [5, 4]
[6, 3]
[7, 4]
[8, 2], [12, 11]

End file

[1, 2], [4, 5]
[3, 6]
[4, 7]
[2, 8], [11, 12]

View Diff

1,4c1,4
< [2, 1], [5, 4]
< [6, 3]
< [7, 4]
< [8, 2], [12, 11]
---
> [1, 2], [4, 5]
> [3, 6]
> [4, 7]
> [2, 8], [11, 12]

Solutions by @LkzWindy:

Created by: @wedesoft Tweet

370 active golfers, 2011 entries

Solutions by @LkzWindy:

16

#9 - windy / @LkzWindy

12/04/2020 at 08:20AM

17

#>75 - windy / @LkzWindy

12/04/2020 at 08:18AM

18

#>123 - windy / @LkzWindy

12/04/2020 at 08:16AM

19

#>131 - windy / @LkzWindy

12/04/2020 at 08:14AM

22

#>149 - windy / @LkzWindy

12/04/2020 at 08:11AM

24

#>173 - windy / @LkzWindy

12/04/2020 at 08:05AM

25

#>179 - windy / @LkzWindy

11/28/2020 at 02:51PM

26

#>187 - windy / @LkzWindy

11/28/2020 at 02:42PM

27

#>199 - windy / @LkzWindy

11/28/2020 at 02:30PM

28

#>212 - windy / @LkzWindy

11/28/2020 at 05:11AM

32

#>249 - windy / @LkzWindy

11/28/2020 at 03:52AM

32

#>249 - windy / @LkzWindy

11/28/2020 at 04:40AM

33

#>267 - windy / @LkzWindy

11/28/2020 at 03:32AM

34

#>271 - windy / @LkzWindy

11/28/2020 at 03:22AM

39

#>305 - windy / @LkzWindy

11/28/2020 at 02:50AM

49

#>333 - windy / @LkzWindy

11/28/2020 at 02:44AM