Sync

Task/Happy-numbers/PowerShell/happy-numbers-1.psh

@@ -6,7 +6,6 @@ function happy([int] $n) {
         while( $hist[$sum] -eq $null ) {
             if($sum -eq 1) {
                 $a+=$i
-                $i
             }
             $hist[$sum]=$sum
             $sum2=0
@@ -17,4 +16,5 @@ function happy([int] $n) {
             $sum=$sum2
         }
     }
+    $a -join ','
 }

Task/Happy-numbers/PowerShell/happy-numbers-2.psh

@@ -1,18 +1,2 @@
-function happy([int] $n) {
-    1..$n | ForEach-Object {
-        $sum=$_
-        $hist=@{}
-        while( $hist[$sum] -eq $null ) {
-            if($sum -eq 1) {
-                $_
-            }
-            $hist[$sum]=$sum
-            $sum2=0
-            foreach($j in $sum.ToString().ToCharArray()) {
-                $k=([int]$j)-0x30
-                $sum2+=$k*$k
-            }
-            $sum=$sum2
-        }
-    }
-}
+happy(8)
+7,10,13,19,23,28,31,32