RosettaCodeData/Task/Longest-common-subsequence/PowerShell/longest-common-subsequence-4.psh

$list1

ID   X   Y
--   -   -
 1 101 201
 2 102 202
 3 103 203
 4 104 204
 5 105 205
 6 106 206
 7 107 207
 8 108 208
 9 109 209

$list2

ID   X   Y
--   -   -
 1 101 201
 3 103 203
 5 105 205
 7 107 207
 9 109 209

Get-Lcs -ReferenceObject $list1.ID -DifferenceObject $list2.ID