Data update

Task/Knuth-shuffle/PowerShell/knuth-shuffle-1.ps1

@@ -0,0 +1,2 @@
+$A = 1, 2, 3, 4, 5
+Get-Random $A -Count $A.Count

Task/Knuth-shuffle/PowerShell/knuth-shuffle-2.ps1

@@ -0,0 +1,9 @@
+function shuffle ($a) {
+    $c = $a.Clone()  # make copy to avoid clobbering $a
+    1..($c.Length - 1) | ForEach-Object {
+        $i = Get-Random -Minimum $_ -Maximum $c.Length
+        $c[$_-1],$c[$i] = $c[$i],$c[$_-1]
+        $c[$_-1]  # return newly-shuffled value
+    }
+    $c[-1]  # last value
+}