2 files changed, 12 insertions, 8 deletions
diff --git a/challenge-117/perlboy1967/perl/ch-1.pl b/challenge-117/perlboy1967/perl/ch-1.pl
index 0252ba108a..b268b229c6 100755
--- a/challenge-117/perlboy1967/perl/ch-1.pl
+++ b/challenge-117/perlboy1967/perl/ch-1.pl
@@ -11,14 +11,18 @@ use v5.16;
 use strict;
 use warnings;
 
-use File::Slurp;
+use File::Basename qw(dirname);
+use File::Slurp qw(read_file);
 use List::MoreUtils qw(slide);
 
-printf "Missing row number(s) of file '%s' is/are '%s'\n", $ARGV[0], join(',',missingRows($ARGV[0]));
+my $input = $ARGV[0] // sprintf('%s/input.txt',dirname($0));
+
+printf "Missing row number(s) of file '%s' is/are '%s'\n", 
+       $input, join(',',missingRows($input));
 
 
 sub missingRows {
   my ($f) = @_;
 
-  return grep /\d/,slide{($a+1..$b-1)if($b-$a>1)}sort{$a<=>$b}map{chomp;s/^(\d+).*/$1/;$_}read_file($f);
+  return grep /\d/,slide{($a+1..$b-1)if($b-$a>1)}sort{$a<=>$b}map{/^(\d+).*/;$_=$1}read_file($f);
 }
diff --git a/challenge-117/perlboy1967/perl/ch-2.pl b/challenge-117/perlboy1967/perl/ch-2.pl
index 19a3b62f61..a6b0a6f00f 100755
--- a/challenge-117/perlboy1967/perl/ch-2.pl
+++ b/challenge-117/perlboy1967/perl/ch-2.pl
@@ -11,11 +11,8 @@ use v5.16;
 use strict;
 use warnings;
 
-use List::Util qw(sum);
-
 use Test::More;
 use Test::Deep;
-use Data::Printer;
 
 # Prototype(s)
 sub findPossiblePaths($);
@@ -29,14 +26,17 @@ my %tests = (
 );
 
 foreach my $test (sort keys %tests) {
-  cmp_deeply (findPossiblePaths($test),$tests{$test},"findPossiblePaths($test)");
+  cmp_deeply(findPossiblePaths($test),
+             $tests{$test},
+             "findPossiblePaths($test)");
 }
 
 done_testing;
 
 print "Now some bigger challenges...\n";
 for my $size (4 .. 10) {
-  printf "findPossiblePaths($size) = %d paths\n", scalar @{findPossiblePaths($size)};
+  printf "findPossiblePaths($size) = %d paths\n", 
+         scalar @{findPossiblePaths($size)};
 }