RosettaCodeData/Task/Longest-string-challenge/PowerShell/longest-string-challenge-2.psh

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@'
a
bb
ccc
ddd
ee
f
ggg
'@ -split "`r`n" |
Group-Object -Property Length |
Sort-Object -Property Name -Descending |
Select-Object -Property Count, @{Name="Length"; Expression={[int]$_.Name}}, Group -First 1