From d104e3d8920d27bad28f085c321509ab130e3663 Mon Sep 17 00:00:00 2001
From: KjetilS <kjetilskotheim@gmail.com>
Date: Fri, 7 Nov 2025 17:01:07 +0100
Subject: https://theweeklychallenge.org/blog/perl-weekly-challenge-346/

---
 challenge-346/kjetillll/perl/ch-1.pl | 64 ++++++++++++++++++++++++++++++++++++
 challenge-346/kjetillll/perl/ch-2.pl | 17 ++++++++++
 2 files changed, 81 insertions(+)
 create mode 100644 challenge-346/kjetillll/perl/ch-1.pl
 create mode 100644 challenge-346/kjetillll/perl/ch-2.pl

diff --git a/challenge-346/kjetillll/perl/ch-1.pl b/challenge-346/kjetillll/perl/ch-1.pl
new file mode 100644
index 0000000000..1aab154ad5
--- /dev/null
+++ b/challenge-346/kjetillll/perl/ch-1.pl
@@ -0,0 +1,64 @@
+sub f {
+    my($s, $max_so_far) = (@_, 0);
+    $s =~ s/ ( \( (?1)* \) )+ //x
+    ? f( $s, length($&) > $max_so_far ? length($&) : $max_so_far )
+    : $max_so_far
+}
+
+print f( $$_[0] ) == $$_[1] ? "ok\n" : "error\n" for map [ /\S+/g ], split /\n/, <<'';
+(()())         6
+)()())         4
+((()))()(((()  8
+))))((()(      2
+()(()          2
+()()(()()()    6
+)))))))))))))))))))))))))))))) 0
+))()))()(()((((((()((()(()(((( 2
+)())))())))((((((())(((((())(( 4
+((()((())(()()(((((()(())(()() 6
+))))((()()))))()()(()(()(((()( 8
+()())))((((()))))))))((()))((( 10
+)()((((()))()(()((()((()))(()) 12
+)(())((())))((((())((()()()))( 14
+((()(())()()))())(((()((())))) 16
+))()))(()(((()))()(()()))((()) 18
+((()(()()(()(()()()(((())()))) 20
+((()))((()()()((())((()))()))( 22
+()(((())))((()(())()))())(())) 24
+)((((())())((())((((()())))))( 26
+(()()()(())((())(()())()))())( 28
+(()()(((()())(((()))))(())())) 30
+)))())()))(()(()((((()(((()((((((((((((((((((((((((((()((((()((((()( 2
+))))(()))))()))())()))(()()(((((((()(((((())((((())((()((())(()(()(( 4
+)()())(())())((()))))(((()())(((())(((((((((((())(()()((()(())(()((( 6
+)()))()()))()())))(()()(((()(()(()((())(((()()()(()((()(()(())()(()( 8
+))()()))))()())))()())))(())()()())))(())(())))))())))())()(()(((()) 10
+)))()())(()()))))(())(()))((())())()())((()()()(((((())())(()()(((() 12
+())((())()))))))))()))()))((()))((()))()((())()()((((()))((((((())(( 14
+)())(()))))))()(((()))())))(())())((()((()))))()())))(()(()))))(()(( 16
+(())))(()())((())((((()))(()()((((()(())))(((()(((())((()()())(()))( 18
+))((()()(((()))))(()(((()(()))(())(()()(()((((())))(()())()()()((((( 20
+))(()()))))((()((((()))))())(())))()()((())((()(())(()(())((()()()(( 22
+)()())())(())))))(()()((())((()())))))((()(()((())((()(())())()()))( 24
+()))(()()())))(())(()(()(()(()))())((((()()(())()((()))(()()(()))((( 26
+))))()))())())()()()(((((())())))()()())()((((((((()(()(((()(((((((( 28
+()((((()((()))())(())(((((((()(()(())(((())()))))())))(((()))((()()( 30
+)()(((((()))((()(()()))(())((()(((()()()(()))())())(()()()))((()()() 32
+((())))()))(()(((()((()))(())())))((())))(())))(()())((())(())(()()( 34
+((()())(()((())))))((((())((())))(((((()))()()))())(()))((()(((((()) 36
+)()((()()))()(((()((()())())((()))))()))))))()(()()(())()))))()))()( 38
+(()()((())))((()())()((((()))(()))())())))()(()()(())))()((()()(()(( 40
+)((())()()())()(()()(()()(()(())((()()()(())((()))())(()(()))((()))) 42
+)(())(()))((())()())()((())()()(((()((())()())()(())())((())()))())( 44
+)()(()))()))))))))())(()(((()((()())()))(((()))()()()(()))(()()))()) 46
+)(())())))()()((((()()(((((()()(())()))))))())()))((()))()))))(())(( 48
+)()))())(()(())(()()((())()()()(()()())())(())())())(())())))((())() 50
+(()))()((()()(()((()()()))()())((()))((())()(())))()(())))))((((()() 52
+))(()))())())((()(())(()()())((())()()))()((()(()))())(()())((())()) 54
+(((())(())((((())(()(((()(())))))(())))())()())(()()))())((()())(()( 56
+(((()()())()(((())((()()()((()())))((()(()))))))()()))()()))()())))( 58
+()((((()()(((((())())())))())())(())()(((())(((()))))((())))()()((() 60
+(())(((((())())()())((()(())((((())()())()())))((())(()(())())()())) 62
+))((((())())(()())(()())(()()()(()((())))(()))(()()(())(()))))(())(( 64
+)(()(()()(()))((()((())()(((()(()))))((((())))))())(((())(()())))))( 66
+(((())))(()(()())(()(())))(((((((())()())))()(((()(()())()))))()))() 68
diff --git a/challenge-346/kjetillll/perl/ch-2.pl b/challenge-346/kjetillll/perl/ch-2.pl
new file mode 100644
index 0000000000..ecec17007c
--- /dev/null
+++ b/challenge-346/kjetillll/perl/ch-2.pl
@@ -0,0 +1,17 @@
+sub f {
+    my($str, $target) = @_;
+    grep !/0\d/ && eval == $target,
+    map $str =~ s{ \d\B }{ [ $& . substr(' +-*', $_ % 4,1),  $_ >>= 2 ]->[0] }gxer =~ s/ //gr,
+    0   ..   4 ** length($str) / 4  -  1
+}
+    
+use Test::More;
+is_deeply [ sort( f( @$_{'str','target'} ) ) ],
+          [ sort( @{ @$_{'output'} }       ) ]
+for {str => "123",  target => 6,  output => ["1*2*3", "1+2+3"] },
+    {str => "105",  target => 5,  output => ["1*0+5", "10-5"] },
+    {str => "232",  target => 8,  output => ["2*3+2", "2+3*2"] },
+    {str => "1234", target => 10, output => ["1*2*3+4", "1+2+3+4"] },
+    {str => "1001", target => 2,  output => ["1+0*0+1", "1+0+0+1", "1+0-0+1", "1-0*0+1", "1-0+0+1", "1-0-0+1"] };
+done_testing;
+
-- 
cgit 


From 16dc4478f22c5a77c42c74891730e885c920cb82 Mon Sep 17 00:00:00 2001
From: KjetilS <kjetilskotheim@gmail.com>
Date: Fri, 7 Nov 2025 17:38:55 +0100
Subject: https://theweeklychallenge.org/blog/perl-weekly-challenge-346/

---
 challenge-346/kjetillll/perl/ch-2.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/challenge-346/kjetillll/perl/ch-2.pl b/challenge-346/kjetillll/perl/ch-2.pl
index ecec17007c..eb9b945f1d 100644
--- a/challenge-346/kjetillll/perl/ch-2.pl
+++ b/challenge-346/kjetillll/perl/ch-2.pl
@@ -1,7 +1,7 @@
 sub f {
     my($str, $target) = @_;
     grep !/0\d/ && eval == $target,
-    map $str =~ s{ \d\B }{ [ $& . substr(' +-*', $_ % 4,1),  $_ >>= 2 ]->[0] }gxer =~ s/ //gr,
+    map $str =~ s{ \d\B }{ [ $& . ['','+','-','*']->[$_ % 4],  $_ >>= 2 ]->[0] }gxer,
     0   ..   4 ** length($str) / 4  -  1
 }
     
-- 
cgit