Data commit

Task/Middle-three-digits/PowerShell/middle-three-digits.psh

@@ -0,0 +1,24 @@
+function middle3($inp){
+
+	$str = [Math]::abs($inp)
+
+	$leng = "$str".length
+
+	if ($leng -lt 3){
+		Write-host $inp":	[ERROR] too short."
+		Return
+	}
+	if (($leng % 2) -eq 0){
+		Write-host $inp":	[ERROR] even number of digits."
+	} else {
+		$trimmer = ($leng - 3) / 2
+		$ans = "$str".subString($trimmer,3)
+
+		Write-host $inp":	$ans"
+	}
+	Return
+}
+
+$sample = 123, 12345, 1234567, 987654321, 10001, -10001, -123, -100, 100, -12345, 1, 2, -1, -10, 2002, -2002, 0
+
+foreach ($x in $sample){middle3 $x}