Merge pull request #2831 from drbaggy/master

First pass at ch 88

2 files changed, 44 insertions, 0 deletions

diff --git a/challenge-088/james-smith/perl/ch-1.pl b/challenge-088/james-smith/perl/ch-1.pl
new file mode 100644
index 0000000000..117fff074d
--- /dev/null
+++ b/challenge-088/james-smith/perl/ch-1.pl
@@ -0,0 +1,19 @@
+#!/usr/local/bin/perl
+
+use strict;
+
+use warnings;
+use feature qw(say);
+use Test::More;
+
+is( "@{[ prod_list( qw(5 2 1 4 3) ) ]}", '24 60 120 30 40' );
+is( "@{[ prod_list( qw(2 1 4 3) ) ]}", '12 24 6 8' );
+
+done_testing();
+
+sub prod_list {
+  my $N = 1;
+  $N *= $_ foreach @_;
+  return map { $N/$_} @_;
+}
+
diff --git a/challenge-088/james-smith/perl/ch-2.pl b/challenge-088/james-smith/perl/ch-2.pl
new file mode 100644
index 0000000000..3ea3d71715
--- /dev/null
+++ b/challenge-088/james-smith/perl/ch-2.pl
@@ -0,0 +1,25 @@
+#!/usr/local/bin/perl
+
+use strict;
+
+use warnings;
+use feature qw(say);
+use Test::More;
+
+is( "@{ spiral_matrix([1,2,3],[4,5,6],[7,8,9]) }", '1 2 3 6 9 8 7 4 5' );
+is( "@{ spiral_matrix([1,2,3,4],[5,6,7,8],[9,10,11,12],[13,14,15,16]) }", '1 2 3 4 8 12 16 15 14 13 9 5 6 7 11 10' );
+
+done_testing();
+
+sub spiral_matrix {
+  my @rows = @_;
+  my @res;
+  while(@rows) {
+    push @res, @{shift @rows};
+    push @res, pop @{$_}              foreach grep { @{$_} } @rows;
+    push @res, reverse @{ pop @rows } if @rows; ## Make sure we have data!
+    push @res, shift @{$_}            foreach grep { @{$_} } reverse @rows;
+  }
+  return \@res;
+}
+