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-rw-r--r--challenge-059/e-choroba/blog.txt1
-rwxr-xr-xchallenge-059/e-choroba/perl/ch-2.pl3
2 files changed, 2 insertions, 2 deletions
diff --git a/challenge-059/e-choroba/blog.txt b/challenge-059/e-choroba/blog.txt
new file mode 100644
index 0000000000..7692d6072b
--- /dev/null
+++ b/challenge-059/e-choroba/blog.txt
@@ -0,0 +1 @@
+http://blogs.perl.org/users/e_choroba/2020/05/perl-weekly-challenge-059-linked-list-and-bit-sum.html
diff --git a/challenge-059/e-choroba/perl/ch-2.pl b/challenge-059/e-choroba/perl/ch-2.pl
index f9cde1626c..5a8e182b01 100755
--- a/challenge-059/e-choroba/perl/ch-2.pl
+++ b/challenge-059/e-choroba/perl/ch-2.pl
@@ -4,8 +4,7 @@ use strict;
sub diff_bits {
my ($x, $y) = @_;
- my ($bx, $by) = map { pack 'N', $_ } $x, $y;
- return unpack '%32b*', $bx ^ $by
+ return unpack '%32b*', pack 'N', $x ^ $y
}
sub chain_diff_bits {