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 9v0063d76854000000000249

Paste a column after a column

This task is very common while using multi-cursor. What is the elegant vim way ?

Start file
Names
Donald Knuth
Sebastian Thrun
Peter Norvig
Satoshi Nakamoto
Age
100
50
60
45
End file
Names,Age
Donald Knuth,100
Sebastian Thrun,50
Peter Norvig,60
Satoshi Nakamoto,45

View Diff

1,10c1,5
< Names
< Donald Knuth
< Sebastian Thrun
< Peter Norvig
< Satoshi Nakamoto
< Age
< 100
< 50
< 60
< 45
---
> Names,Age
> Donald Knuth,100
> Sebastian Thrun,50
> Peter Norvig,60
> Satoshi Nakamoto,45

Solutions by @zulolosi:

Unlock 6 remaining solutions by signing in and submitting your own entry
Created by: @__ngtrongkha

553 active golfers, 2537 entries

Solutions by @zulolosi:
16
#161 - Petro Тrouq / @zulolosi

07/04/2023 at 01:55AM

17
#>207 - Petro Тrouq / @zulolosi

07/04/2023 at 01:34AM

18
#>251 - Petro Тrouq / @zulolosi

07/04/2023 at 01:26AM

19
#>280 - Petro Тrouq / @zulolosi

07/04/2023 at 01:13AM

21
#>320 - Petro Тrouq / @zulolosi

07/04/2023 at 12:52AM

30
#>410 - Petro Тrouq / @zulolosi

07/02/2023 at 12:23PM