From d88862c38829e35a41d41adde76d3855fa1ce921 Mon Sep 17 00:00:00 2001
From: Ruben Westerberg <drclaw@mac.com>
Date: Tue, 2 Jul 2019 14:52:49 +1000
Subject: Solutions to ch1. p5 and p6

---
 challenge-015/ruben-westerberg/perl5/ch-1.pl | 37 ++++++++++++++++++++++++++++
 challenge-015/ruben-westerberg/perl6/ch-1.p6 | 15 +++++++++++
 2 files changed, 52 insertions(+)
 create mode 100755 challenge-015/ruben-westerberg/perl5/ch-1.pl
 create mode 100755 challenge-015/ruben-westerberg/perl6/ch-1.p6

diff --git a/challenge-015/ruben-westerberg/perl5/ch-1.pl b/challenge-015/ruben-westerberg/perl5/ch-1.pl
new file mode 100755
index 0000000000..2367eb08e4
--- /dev/null
+++ b/challenge-015/ruben-westerberg/perl5/ch-1.pl
@@ -0,0 +1,37 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use List::Util qw<sum>;
+use v5.24;
+
+my (@week, @balanced, @strong); #Store the results here
+my @p=\(@week,@balanced,@strong); #Make indexable
+my @ps;	#Primes shift reg
+my $i=0;
+
+while ((@strong < 10) || (@week < 10) ){
+	push @ps, nextPrime(); 	#Push the next prime into the shift reg
+	next if $i++ <2;	#This line for priming buffer
+	push @{$p[($ps[1]<=>(sum(@ps[0,2])/2))+1]}, $ps[1];    #Do test
+	shift @ps; 		#Remove the oldest prime from shift reg
+}
+
+print "Week:   ",join(", ",@week[0..9]),"\n";
+print "Strong: ",join(", ",@strong[0..9]),"\n";
+
+
+sub nextPrime {
+        state $p=1;
+	$p+=1 until isPrime( $p);
+	$p++;
+}
+
+sub isPrime {
+	my $t=shift;
+	my $sum=0;
+	for (1..(int $t/2)) {
+		$sum++ if $t % $_ == 0;
+		last if $sum >1;
+	}
+	$sum==1;
+}
diff --git a/challenge-015/ruben-westerberg/perl6/ch-1.p6 b/challenge-015/ruben-westerberg/perl6/ch-1.p6
new file mode 100755
index 0000000000..6536812b30
--- /dev/null
+++ b/challenge-015/ruben-westerberg/perl6/ch-1.p6
@@ -0,0 +1,15 @@
+#!/usr/bin/env perl6
+
+my (@week,@balanced, @strong);
+my @p=(@week, @balanced, @strong);
+my @ps;
+my @primes=(2..*).grep: *.is-prime;
+my $i=0;
+while @week < 10 or @strong < 10 {
+	@ps.push: @primes[$i];
+	next if $i++ < 2;
+	@p[((@ps[1] <=> (sum(@ps[0,2])/2)).value+1)].push: @ps[1];
+	@ps.shift;
+}
+put "Week:   ",@week[^10].join: ", ";
+put "Strong: ",@strong[^10].join: ", ";
-- 
cgit