Challenge 149 Task 1 Perl solution without using the Fib library

1 files changed, 50 insertions, 0 deletions

diff --git a/challenge-149/lubos-kolouch/perl/ch-1_no_lib.pl b/challenge-149/lubos-kolouch/perl/ch-1_no_lib.pl
new file mode 100644
index 0000000000..3163c58105
--- /dev/null
+++ b/challenge-149/lubos-kolouch/perl/ch-1_no_lib.pl
@@ -0,0 +1,50 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use List::Util qw/sum/;
+
+my @fibs;
+my %fib_hash;
+
+$fibs[0] = 0;
+$fibs[1] = 1;
+$fib_hash{0} = 1;
+$fib_hash{1} = 1;
+
+sub gen_more_fibs {
+    my $limit = shift;
+
+    while ($fibs[-1] < $limit) {
+        my $new_fib =$fibs[-1] + $fibs[-2];
+        push @fibs,  $new_fib;
+        $fib_hash{$new_fib} = 1;
+    }
+
+}
+
+sub get_numbers {
+    my $what = shift;
+
+    my $count = 0;
+    my $pos = 0;
+
+    my @output;
+
+    while($count < $what) {
+        gen_more_fibs($pos);
+        if ($fib_hash{sum(split //, $pos)}) {
+            push @output, $pos;
+            $count++;
+        }
+        $pos++;
+
+    }
+    
+    return \@output;
+}
+
+use Test::More;
+
+is_deeply(get_numbers(20), [0, 1, 2, 3, 5, 8, 10, 11, 12, 14, 17, 20, 21, 23, 26, 30, 32, 35, 41, 44]);
+done_testing;