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 51d6ddf4b0c5d6000200002e

Pairs of numbers

Line 1 represents x, line 2 y-data. Bring the corresponding pairs in the form "[x,y]\n"

Start file

0.173 0.499 0.764 0.938 1.000 0.927 0.527 0.000 -0.173 -0.499 -0.764 -0.938 -1.000 -0.927 -0.527 0.000
0.985 0.867 0.645 0.346 0.005 -0.376 -0.850 1.000 0.985 0.867 0.645 0.346 0.005 -0.376 -0.850 1.000

End file

[0.173, 0.985]
[0.499, 0.867]
[0.764, 0.645]
[0.938, 0.346]
[1.000, 0.005]
[0.927, -0.376]
[0.527, -0.850]
[0.000, 1.000]
[-0.173, 0.985]
[-0.499, 0.867]
[-0.764, 0.645]
[-0.938, 0.346]
[-1.000, 0.005]
[-0.927, -0.376]
[-0.527, -0.850]
[0.000, 1.000]

View Diff

1,2c1,16
< 0.173 0.499 0.764 0.938 1.000 0.927 0.527 0.000 -0.173 -0.499 -0.764 -0.938 -1.000 -0.927 -0.527 0.000
< 0.985 0.867 0.645 0.346 0.005 -0.376 -0.850 1.000 0.985 0.867 0.645 0.346 0.005 -0.376 -0.850 1.000
---
> [0.173, 0.985]
> [0.499, 0.867]
> [0.764, 0.645]
> [0.938, 0.346]
> [1.000, 0.005]
> [0.927, -0.376]
> [0.527, -0.850]
> [0.000, 1.000]
> [-0.173, 0.985]
> [-0.499, 0.867]
> [-0.764, 0.645]
> [-0.938, 0.346]
> [-1.000, 0.005]
> [-0.927, -0.376]
> [-0.527, -0.850]
> [0.000, 1.000]

Solutions by @Lory46845742:

Created by: @powertomato Tweet

133 active golfers, 360 entries

Solutions by @Lory46845742:

27

#33 - Lory / @Lory46845742

12/19/2019 at 03:36PM

30

#>44 - Lory / @Lory46845742

12/19/2019 at 03:34PM

31

#>47 - Lory / @Lory46845742

12/19/2019 at 03:33PM

32

#>49 - Lory / @Lory46845742

12/19/2019 at 03:32PM

33

#>56 - Lory / @Lory46845742

12/19/2019 at 03:36PM

34

#>58 - Lory / @Lory46845742

12/19/2019 at 03:28PM

35

#>64 - Lory / @Lory46845742

12/19/2019 at 03:27PM

36

#>69 - Lory / @Lory46845742

12/19/2019 at 03:13PM

36

#>69 - Lory / @Lory46845742

12/19/2019 at 03:15PM

37

#>73 - Lory / @Lory46845742

12/19/2019 at 02:55PM

42

#>93 - Lory / @Lory46845742

12/19/2019 at 02:53PM