Initial implementation

2 files changed, 79 insertions, 0 deletions

diff --git a/challenge-262/lance-wicks/perl/lib/MPN.pm b/challenge-262/lance-wicks/perl/lib/MPN.pm
new file mode 100644
index 0000000000..9a2190486b
--- /dev/null
+++ b/challenge-262/lance-wicks/perl/lib/MPN.pm
@@ -0,0 +1,41 @@
+package MPN;
+
+
+sub max_pos_or_neg {
+    my $self = shift;
+    my @ints = @_;
+
+    my $positives = $self->positives(@ints); 
+    my $negatives = $self->negatives(@ints); 
+
+    if ($positives > $negatives) { return $positives }
+    if ($positives < $negatives) { return $negatives }
+    return 0;
+
+}
+
+sub positives {
+    my $self = shift;
+    my @ints = @_;
+    
+    my $count = 0;
+    for my $i (@ints) {
+        $count++ if $i > 0;
+    }
+
+    return $count;
+}
+
+sub negatives {
+    my $self = shift;
+    my @ints = @_;
+    
+    my $count = 0;
+    for my $i (@ints) {
+        $count++ if $i < 0;
+    }
+
+    return $count;
+}
+
+1;
\ No newline at end of file
diff --git a/challenge-262/lance-wicks/perl/t/mpn.t b/challenge-262/lance-wicks/perl/t/mpn.t
new file mode 100644
index 0000000000..4cda02cc02
--- /dev/null
+++ b/challenge-262/lance-wicks/perl/t/mpn.t
@@ -0,0 +1,38 @@
+use Test2::V0 -target => 'MPN';
+
+subtest "Example 1" => sub {
+    my @ints = (-3, 1, 2, -1, 3, -2, 4);
+    is $CLASS->positives(@ints), 4;
+    is $CLASS->negatives(@ints), 3;
+    is $CLASS->max_pos_or_neg(@ints), 4;
+};
+
+subtest "Example 2" => sub {
+    my @ints = (-1, -2, -3, 1);
+    is $CLASS->positives(@ints), 1;
+    is $CLASS->negatives(@ints), 3;
+    is $CLASS->max_pos_or_neg(@ints), 3;
+};
+
+subtest "Example 3" => sub {
+    my @ints = (1, 2);
+    is $CLASS->positives(@ints), 2;
+    is $CLASS->negatives(@ints), 0;
+    is $CLASS->max_pos_or_neg(@ints), 2;
+};
+
+subtest "Example 3" => sub {
+    my @ints = (1, 2);
+    is $CLASS->positives(@ints), 2;
+    is $CLASS->negatives(@ints), 0;
+    is $CLASS->max_pos_or_neg(@ints), 2;
+};
+
+subtest "Zero is neither positive or negative" => sub {
+    my @ints = (-0,+0,0);
+    is $CLASS->positives(@ints), 0;
+    is $CLASS->negatives(@ints), 0;
+    is $CLASS->max_pos_or_neg(@ints), 0;
+};
+
+done_testing;
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