add 01

day01/day01.ps1

@@ -0,0 +1,26 @@
+param(
+    [parameter(mandatory=$true)]
+    $path
+)
+
+$nums = gc $path | % { [int]$_ }
+
+echo "First question:"
+$last = $nums[0]
+$nums[1..($nums.count)] | % {
+    if ($last -lt $_) { 
+        $_
+    }
+    $last = $_
+} | measure-object | % Count
+
+echo "Second question:"
+
+$last = $nums[0] + $nums[1] + $nums[2]
+1..($nums.count-3) | % {
+    $x = $nums[$_] + $nums[$_+1] + $nums[$_+2]
+    if ($last -lt $x) {
+        $x
+    }
+    $last = $x
+} | measure-object | % count

day01/test.txt

@@ -0,0 +1,10 @@
+199
+200
+208
+210
+200
+207
+240
+269
+260
+263