diff --git a/2015/17/1.pl b/2015/17/1.pl
new file mode 100644
index 0000000..0c4ff8d
--- /dev/null
+++ b/2015/17/1.pl
@@ -0,0 +1,25 @@
+use 5.20.0;
+
+use List::AllUtils qw/ sum min /;
+
+use experimental 'signatures';
+
+my @sizes = <>;
+use DDP; p @sizes;
+
+say number_fitting( 150, sum(@sizes), @sizes );
+
+sub number_fitting( $left, $max, @sizes ) {
+    return 0 if $max < $left;
+
+    return 0 if $left and not @sizes;
+
+    return 1 unless $left;
+
+    my $this = shift @sizes;
+
+    return sum map { 
+        number_fitting( $left - $_ * $this, $max - $this, @sizes );
+    } 0..min 1, ($left / $this);
+
+}
diff --git a/2015/17/2.pl b/2015/17/2.pl
new file mode 100644
index 0000000..5c5d3f2
--- /dev/null
+++ b/2015/17/2.pl
@@ -0,0 +1,31 @@
+use 5.20.0;
+
+use List::AllUtils qw/ sum min first /;
+
+use experimental 'signatures';
+
+my @sizes = <>;
+use DDP; p @sizes;
+
+say number_fitting( 150, sum(@sizes), 0, @sizes );
+
+my @nbr_containers;
+
+say first { $_ } @nbr_containers;
+
+
+
+sub number_fitting( $left, $max, $nbr, @sizes ) {
+    return 0 if $max < $left;
+
+    return 0 if $left and not @sizes;
+
+    return $nbr_containers[$nbr]++ unless $left;
+
+    my $this = shift @sizes;
+
+    return sum map { 
+        number_fitting( $left - $_ * $this, $max - $this, $nbr + $_, @sizes );
+    } 0..min 1, ($left / $this);
+
+}
diff --git a/2015/17/input.txt b/2015/17/input.txt
new file mode 100644
index 0000000..6b25a72
--- /dev/null
+++ b/2015/17/input.txt
@@ -0,0 +1,20 @@
+33
+14
+18
+20
+45
+35
+16
+35
+1
+13
+18
+13
+50
+44
+48
+6
+24
+41
+30
+42