Fixed error in 085/2

Thanks to Colin Crain.

1 files changed, 6 insertions, 4 deletions

diff --git a/challenge-085/e-choroba/perl/ch-2.pl b/challenge-085/e-choroba/perl/ch-2.pl
index ee64b64f1c..3d16b4f68d 100755
--- a/challenge-085/e-choroba/perl/ch-2.pl
+++ b/challenge-085/e-choroba/perl/ch-2.pl
@@ -7,17 +7,19 @@ sub power_of_two_integers {
     for my $d (2 .. sqrt $n) {
         next unless $n % $d == 0;
 
-        $n /= $d while $n % $d == 0;
-        last
+        my $m = $n;
+        $m /= $d while $m % $d == 0;
+        return 1 if $m == 1;
     }
-    return $n == 1 ? 1 : 0
+    return 0
 }
 
-use Test::More tests => 6;
+use Test::More tests => 7;
 is power_of_two_integers(8),   1, 'Example 1';
 is power_of_two_integers(15),  0, 'Example 2';
 is power_of_two_integers(125), 1, 'Example 3';
 
+is power_of_two_integers(36), 1, 'Collin';
 is power_of_two_integers(43), 0, 'Prime';
 is power_of_two_integers(987654323), 0, 'Large prime';
 is power_of_two_integers(51185893014090757), 1, 'Large PoTI';