PWC 346

Task1 Raku done

2 files changed, 35 insertions, 0 deletions

diff --git a/challenge-346/luca-ferrari/blog-1.txt b/challenge-346/luca-ferrari/blog-1.txt
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+++ b/challenge-346/luca-ferrari/blog-1.txt
@@ -0,0 +1 @@
+https://fluca1978.github.io/2025/11/06/PerlWeeklyChallenge346.html#task1
diff --git a/challenge-346/luca-ferrari/raku/ch-1.raku b/challenge-346/luca-ferrari/raku/ch-1.raku
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+++ b/challenge-346/luca-ferrari/raku/ch-1.raku
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+#!raku
+
+#
+# Perl Weekly Challenge 346
+# Task 1
+#
+# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-346>
+#
+
+sub MAIN( Str $string ) {
+    my @chars = $string.comb;
+    my %positions;
+    my $level = 0;
+    for 0 ..^ @chars.elems {
+	if ( @chars[ $_ ] ~~ '(' ) {
+	    %positions{ $level }<start> = $_;
+	    $level++;
+	}
+	elsif ( @chars[ $_ ] ~~ ')' ) {
+	    $level--;
+	    %positions{ $level }<end> = $_;
+
+	}
+    }
+
+    # now get the max pair
+    my $max-length = 0;
+    for %positions.keys {
+	my $current = %positions{ $_ }<end> - %positions{ $_ }<start>;
+	$max-length = $current if ( $current > $max-length );
+    }
+
+    $max-length.say;
+}