Merge pull request #10799 from wlmb/challenges

Solve PWC286

3 files changed, 31 insertions, 0 deletions

diff --git a/challenge-286/wlmb/blog.txt b/challenge-286/wlmb/blog.txt
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+++ b/challenge-286/wlmb/blog.txt
@@ -0,0 +1 @@
+https://wlmb.github.io/2024/09/08/PWC286/
diff --git a/challenge-286/wlmb/perl/ch-1.pl b/challenge-286/wlmb/perl/ch-1.pl
new file mode 100755
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+++ b/challenge-286/wlmb/perl/ch-1.pl
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+#!/usr/bin/env perl
+# Perl weekly challenge 286
+# Task 1:  Self Spammer
+#
+# See https://wlmb.github.io/2024/09/08/PWC286/#task-1-self-spammer
+use v5.36;
+my @words = qw( @words = qw( ) say $words [ rand( 0+@words ) ] ; );
+say $words [ rand( 0+@words ) ] ;
diff --git a/challenge-286/wlmb/perl/ch-2.pl b/challenge-286/wlmb/perl/ch-2.pl
new file mode 100755
index 0000000000..08163d0a8a
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+++ b/challenge-286/wlmb/perl/ch-2.pl
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+#!/usr/bin/env perl
+# Perl weekly challenge 286
+# Task 2:  Order Game
+#
+# See https://wlmb.github.io/2024/09/08/PWC286/#task-2-order-game
+use v5.36;
+use List::Util qw(min max);
+use experimental qw(for_list);
+die <<~"FIN" unless @ARGV and ((@ARGV&(@ARGV-1))==0); #finite power of 2
+    Usage: $0 N1 N2...Nm
+    where m is a power of two to choose min max of consecutive pairs
+    and iterate until surviving element is found
+    FIN
+my @next=@ARGV;
+while(@next>2){
+    my @minmax;
+    for my($p,$q,$r,$s)(@next){
+	push @minmax, min($p,$q),max($r,$s);
+    }
+    @next=@minmax;
+}
+say "@ARGV -> ",min(@next)