Merge pull request #9761 from boblied/w260

Week 260 solutions from Bob Lied

3 files changed, 124 insertions, 3 deletions

diff --git a/challenge-260/bob-lied/README b/challenge-260/bob-lied/README
index 0353728dfd..4ba7ab0b4f 100644
--- a/challenge-260/bob-lied/README
+++ b/challenge-260/bob-lied/README
@@ -1,4 +1,4 @@
-Solutions to weekly challenge 259 by Bob Lied
+Solutions to weekly challenge 260 by Bob Lied
 
-https://perlweeklychallenge.org/blog/perl-weekly-challenge-259/
-https://github.com/boblied/perlweeklychallenge-club/tree/master/challenge-259/bob-lied
+https://perlweeklychallenge.org/blog/perl-weekly-challenge-260/
+https://github.com/boblied/perlweeklychallenge-club/tree/master/challenge-260/bob-lied
diff --git a/challenge-260/bob-lied/perl/ch-1.pl b/challenge-260/bob-lied/perl/ch-1.pl
new file mode 100644
index 0000000000..ae96d1a815
--- /dev/null
+++ b/challenge-260/bob-lied/perl/ch-1.pl
@@ -0,0 +1,56 @@
+#!/usr/bin/env perl
+# vim:set ts=4 sw=4 sts=4 et ai wm=0 nu:
+#=============================================================================
+# Copyright (c) 2024, Bob Lied
+#=============================================================================
+#  
+# ch-1.pl Perl Weekly Challenge 260 Task 1 Unique Occurrences
+#=============================================================================
+# You are given an array of integers, @ints.
+# Write a script to return 1 if the number of occurrences of each value
+# in the given array is unique or 0 otherwise.
+# Example 1 Input: @ints = (1,2,2,1,1,3)
+#           Output: 1
+#   The number 1 occurred 3 times.
+#   The number 2 occurred 2 times.
+#   The number 3 occurred 1 time.
+#   All occurrences are unique, therefore the output is 1.
+# Example 2 Input: @ints = (1,2,3)
+#           Output: 0
+# Example 3 Input: @ints = (-2,0,1,-2,1,1,0,1,-2,9)
+#           Output: 1
+#=============================================================================
+
+use v5.38;
+
+use builtin qw/true false/; no warnings "experimental::builtin";
+
+use Getopt::Long;
+my $Verbose = 0;
+my $DoTest  = 0;
+
+GetOptions("test" => \$DoTest, "verbose" => \$Verbose);
+exit(!runTest()) if $DoTest;
+
+say uniqOcc(@ARGV);
+
+sub uniqOcc(@ints)
+{
+    use List::MoreUtils qw/frequency all/;
+
+    my %intFrequency = frequency(@ints);
+    my %occurFreq = frequency( values %intFrequency );
+
+    return ( all { $_ == 1 } values %occurFreq ) ? 1 : 0;
+}
+
+sub runTest
+{
+    use Test2::V0;
+
+    is( uniqOcc(1,2,2,1,1,3),            1, "Example 1");
+    is( uniqOcc(1,2,3)      ,            0, "Example 2");
+    is( uniqOcc(-2,0,1,-2,1,1,0,1,-2,9), 1, "Example 3");
+
+    done_testing;
+}
diff --git a/challenge-260/bob-lied/perl/ch-2.pl b/challenge-260/bob-lied/perl/ch-2.pl
new file mode 100644
index 0000000000..37a7a8d921
--- /dev/null
+++ b/challenge-260/bob-lied/perl/ch-2.pl
@@ -0,0 +1,65 @@
+#!/usr/bin/env perl
+# vim:set ts=4 sw=4 sts=4 et ai wm=0 nu:
+#=============================================================================
+# Copyright (c) 2024, Bob Lied
+#=============================================================================
+# ch-2.pl Perl Weekly Challenge 260 Task 2 Dictionary Rank
+#=============================================================================
+# You are given a word, $word.
+# Write a script to compute the dictionary rank of the given word.
+# Example 1 Input: $word = 'CAT'
+#           Output: 3
+#   All possible combinations of the letters:
+#   CAT, CTA, ATC, TCA, ACT, TAC
+#   Arrange them in alphabetical order:
+#   ACT, ATC, CAT, CTA, TAC, TCA
+#   CAT is the 3rd in the list.
+#   Therefore the dictionary rank of CAT is 3.
+#
+# Example 2 Input: $word = 'GOOGLE'
+#           Output: 88
+# Example 3 Input: $word = 'SECRET'
+#           Output: 255
+#=============================================================================
+
+use v5.38;
+
+use builtin qw/true false/; no warnings "experimental::builtin";
+
+use Getopt::Long;
+my $Verbose = 0;
+my $DoTest  = 0;
+
+GetOptions("test" => \$DoTest, "verbose" => \$Verbose);
+exit(!runTest()) if $DoTest;
+
+say dictOrder($_) for @ARGV;
+
+sub dictOrder($word)
+{
+    use List::Permutor;
+
+    my $perm = List::Permutor->new( sort { $a cmp $b } split(//, $word) );
+    my $place = 0;
+    my %seen; # Skip duplicate letters
+    while ( my $p = join("", $perm->next()) )
+    {
+        next if $seen{$p};
+        $place++;
+        say "$place $p" if $Verbose;
+        last if $p eq $word;
+        $seen{$p} = true;
+    }
+    return $place;
+}
+
+sub runTest
+{
+    use Test2::V0;
+
+    is( dictOrder("CAT"),      3, "Example 1");
+    is( dictOrder("GOOGLE"),  88, "Example 2");
+    is( dictOrder("SECRET"), 255, "Example 3");
+
+    done_testing;
+}