From d885fae13739fccfab21ca92add4cd2641a54e28 Mon Sep 17 00:00:00 2001 From: Simon Proctor Date: Fri, 5 Jul 2019 09:43:37 +0100 Subject: Strong and week primes --- challenge-015/simon-proctor/perl6/ch-1.p6 | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 challenge-015/simon-proctor/perl6/ch-1.p6 diff --git a/challenge-015/simon-proctor/perl6/ch-1.p6 b/challenge-015/simon-proctor/perl6/ch-1.p6 new file mode 100644 index 0000000000..277e85522e --- /dev/null +++ b/challenge-015/simon-proctor/perl6/ch-1.p6 @@ -0,0 +1,15 @@ +#!/usr/bin/env perl6 +use v6; + +#| Print the first x strong and weak primes +sub MAIN( + UInt $x #= Number of primes to print +) { + my @primes = (1..*).grep( *.is-prime ); + + my @strong = (1..*).grep( { @primes[$_] > (@primes[$_-1] + @primes[$_+1]) / 2 } ).map( { @primes[$_] } ); + my @weak = (1..*).grep( { @primes[$_] < ( @primes[$_-1] + @primes[$_+1] ) / 2 } ).map( { @primes[$_] } ); + + say "Strong {@strong[^$x].join(", ")}"; + say "Weak {@weak[^$x].join(", ")}"; +} \ No newline at end of file -- cgit