Merge pull request #12077 from PerlMonk-Athanasius/branch-for-challenge-322

Perl & Raku solutions to Tasks 1 & 2 for Week 322

4 files changed, 637 insertions, 0 deletions

diff --git a/challenge-322/athanasius/perl/ch-1.pl b/challenge-322/athanasius/perl/ch-1.pl
new file mode 100644
index 0000000000..1762d7700b
--- /dev/null
+++ b/challenge-322/athanasius/perl/ch-1.pl
@@ -0,0 +1,164 @@
+#!perl
+
+################################################################################
+=comment
+
+Perl Weekly Challenge 322
+=========================
+
+TASK #1
+-------
+*String Format*
+
+Submitted by: Mohammad Sajid Anwar
+
+You are given a string and a positive integer.
+
+Write a script to format the string, removing any dashes, in groups of size
+given by the integer. The first group can be smaller than the integer but should
+have at least one character. Groups should be separated by dashes.
+
+Example 1
+
+  Input: $str = "ABC-D-E-F", $i = 3
+  Output: "ABC-DEF"
+
+Example 2
+
+  Input: $str = "A-BC-D-E", $i = 2
+  Output: "A-BC-DE"
+
+Example 3
+
+  Input: $str = "-A-B-CD-E", $i = 4
+  Output: "A-BCDE"
+
+=cut
+################################################################################
+
+#--------------------------------------#
+# Copyright © 2025 PerlMonk Athanasius #
+#--------------------------------------#
+
+#===============================================================================
+=comment
+
+Interface
+---------
+1. If no command-line arguments are given, the test suite is run. Otherwise:
+2. A string, and a positive (non-zero) integer, are entered on the command-line.
+
+=cut
+#===============================================================================
+
+use v5.32;         # Enables strictures
+use warnings;
+use Const::Fast;
+use Regexp::Common qw( number );
+use Test::More;
+
+const my $USAGE => <<END;
+Usage:
+  perl $0 <str> <i>
+  perl $0
+
+    <str>    A string
+    <i>      A positive (non-zero) integer
+END
+
+#-------------------------------------------------------------------------------
+BEGIN
+#-------------------------------------------------------------------------------
+{
+    $| = 1;
+    print "\nChallenge 322, Task #1: String Format (Perl)\n\n";
+}
+
+#===============================================================================
+MAIN:
+#===============================================================================
+{
+    my $argc = scalar @ARGV;
+
+    if    ($argc == 0)
+    {
+        run_tests();
+    }
+    elsif ($argc == 2)
+    {
+        my ($str, $i) = @ARGV;
+
+        $i =~ / ^ $RE{num}{int} $ /x
+               or error( qq["$i" is not a valid integer] );
+
+        $i > 0 or error( "$i is not positive" );
+
+        print qq[Input:  \$str = "$str", \$i = $i\n];
+
+        my $grouped = format_string( $str, $i );
+
+        print qq[Output: "$grouped"\n];
+    }
+    else
+    {
+        error( "Expected 0 or 2 command-line arguments, found $argc" );
+    }
+}
+
+#-------------------------------------------------------------------------------
+sub format_string
+#-------------------------------------------------------------------------------
+{
+    my ($str, $i) = @_;
+    my  $bare     = $str =~ s/ \- //grx;
+    my  @groups;
+
+    while ($bare =~ s/ ( .{1,$i} ) $ //x)
+    {
+        unshift @groups, $1;
+    }
+
+    return join '-', @groups;
+}
+
+#-------------------------------------------------------------------------------
+sub run_tests
+#-------------------------------------------------------------------------------
+{
+    print "Running the test suite\n";
+
+    while (my $line = <DATA>)
+    {
+        chomp $line;
+
+        my  ($test_name, $str, $i, $expected) = split / \| /x, $line;
+
+        for ($test_name, $str, $i, $expected)
+        {
+            s/ ^ \s+   //x;
+            s/   \s+ $ //x;
+        }
+
+        my $grouped = format_string( $str, $i );
+
+        is $grouped, $expected, $test_name;
+    }
+
+    done_testing;
+}
+
+#-------------------------------------------------------------------------------
+sub error
+#-------------------------------------------------------------------------------
+{
+    my ($message) = @_;
+
+    die "ERROR: $message\n$USAGE";
+}
+
+################################################################################
+
+__DATA__
+Example 1|ABC-D-E-F|3|ABC-DEF
+Example 2|A-BC-D-E |2|A-BC-DE
+Example 3|-A-B-CD-E|4|A-BCDE
diff --git a/challenge-322/athanasius/perl/ch-2.pl b/challenge-322/athanasius/perl/ch-2.pl
new file mode 100644
index 0000000000..b3d5cc38d4
--- /dev/null
+++ b/challenge-322/athanasius/perl/ch-2.pl
@@ -0,0 +1,165 @@
+#!perl
+
+################################################################################
+=comment
+
+Perl Weekly Challenge 322
+=========================
+
+TASK #2
+-------
+*Rank Array*
+
+Submitted by: Mohammad Sajid Anwar
+
+You are given an array of integers.
+
+Write a script to return an array of the ranks of each element: the lowest value
+has rank 1, next lowest rank 2, etc. If two elements are the same then they
+share the same rank.
+
+Example 1
+
+  Input: @ints = (55, 22, 44, 33)
+  Output: (4, 1, 3, 2)
+
+Example 2
+
+  Input: @ints = (10, 10, 10)
+  Output: (1, 1, 1)
+
+Example 3
+
+  Input: @ints = (5, 1, 1, 4, 3)
+  Output: (4, 1, 1, 3, 2)
+
+=cut
+################################################################################
+
+#--------------------------------------#
+# Copyright © 2025 PerlMonk Athanasius #
+#--------------------------------------#
+
+#===============================================================================
+=comment
+
+Interface
+---------
+1. If no command-line arguments are given, the test suite is run. Otherwise:
+2. A non-empty list of integers is entered on the command-line.
+
+=cut
+#===============================================================================
+
+use v5.32;         # Enables strictures
+use warnings;
+use Const::Fast;
+use List::Util     qw( uniqint );
+use Regexp::Common qw( number );
+use Test::More;
+
+const my $USAGE => <<END;
+Usage:
+  perl $0 [<ints> ...]
+  perl $0
+
+    [<ints> ...]    A non-empty list of integers
+END
+
+#-------------------------------------------------------------------------------
+BEGIN
+#-------------------------------------------------------------------------------
+{
+    $| = 1;
+    print "\nChallenge 322, Task #2: Rank Array (Perl)\n\n";
+}
+
+#===============================================================================
+MAIN:
+#===============================================================================
+{
+    if (scalar @ARGV == 0)
+    {
+        run_tests();
+    }
+    else
+    {
+        my @ints = @ARGV;
+
+        / ^ $RE{num}{int} $ /x or error( qq["$_" is not a valid integer] )
+            for @ints;
+
+        printf "Input:  \@ints = (%s)\n", join ', ', @ints;
+
+        my $ranks = find_ranks( \@ints );
+
+        printf "Output: (%s)\n",          join ', ', @$ranks;
+    }
+}
+
+#-------------------------------------------------------------------------------
+sub find_ranks
+#-------------------------------------------------------------------------------
+{
+    my ($ints)  = @_;
+    my  @sorted = uniqint sort { $a <=> $b } @$ints;
+    my  %rank;
+
+    for my $i (0 .. $#sorted)
+    {
+        $rank{ $sorted[ $i ] } = $i + 1;
+    }
+
+    my @ranks;
+
+    for my $i (0 .. $#$ints)
+    {
+        push @ranks, $rank{ $ints->[ $i ] };
+    }
+
+    return \@ranks;
+}
+
+#-------------------------------------------------------------------------------
+sub run_tests
+#-------------------------------------------------------------------------------
+{
+    print "Running the test suite\n";
+
+    while (my $line = <DATA>)
+    {
+        chomp $line;
+
+        my  ($test_name, $ints_str, $expected_str) = split / \| /x, $line;
+
+        for ($test_name, $ints_str, $expected_str)
+        {
+            s/ ^ \s+   //x;
+            s/   \s+ $ //x;
+        }
+
+        my @ints     = split / \s+ /x, $ints_str;
+        my $ranks    = find_ranks( \@ints );
+        my @expected = split / \s+ /x, $expected_str;
+
+        is_deeply $ranks, \@expected, $test_name;
+    }
+
+    done_testing;
+}
+
+#-------------------------------------------------------------------------------
+sub error
+#-------------------------------------------------------------------------------
+{
+    my ($message) = @_;
+
+    die "ERROR: $message\n$USAGE";
+}
+
+################################################################################
+
+__DATA__
+Example 1|55 22 44 33  |4 1 3 2
+Example 2|10 10 10     |1 1 1
+Example 3| 5  1  1  4 3|4 1 1 3 2
diff --git a/challenge-322/athanasius/raku/ch-1.raku b/challenge-322/athanasius/raku/ch-1.raku
new file mode 100644
index 0000000000..bf6b70a776
--- /dev/null
+++ b/challenge-322/athanasius/raku/ch-1.raku
@@ -0,0 +1,150 @@
+use v6d;
+
+################################################################################
+=begin comment
+
+Perl Weekly Challenge 322
+=========================
+
+TASK #1
+-------
+*String Format*
+
+Submitted by: Mohammad Sajid Anwar
+
+You are given a string and a positive integer.
+
+Write a script to format the string, removing any dashes, in groups of size
+given by the integer. The first group can be smaller than the integer but should
+have at least one character. Groups should be separated by dashes.
+
+Example 1
+
+  Input: $str = "ABC-D-E-F", $i = 3
+  Output: "ABC-DEF"
+
+Example 2
+
+  Input: $str = "A-BC-D-E", $i = 2
+  Output: "A-BC-DE"
+
+Example 3
+
+  Input: $str = "-A-B-CD-E", $i = 4
+  Output: "A-BCDE"
+
+=end comment
+################################################################################
+
+#--------------------------------------#
+# Copyright © 2025 PerlMonk Athanasius #
+#--------------------------------------#
+
+#===============================================================================
+=begin comment
+
+Interface
+---------
+1. If no command-line arguments are given, the test suite is run. Otherwise:
+2. A string, and a positive (non-zero) integer, are entered on the command-line.
+3. If the string begins with a hyphen, it must be preceded by "--" to indicate
+   that it is not a command-line flag.
+
+=end comment
+#===============================================================================
+
+use Test;
+
+subset Pos of Int where * > 0;
+
+#-------------------------------------------------------------------------------
+BEGIN
+#-------------------------------------------------------------------------------
+{
+    "\nChallenge 322, Task #1: String Format (Raku)\n".put;
+}
+
+#===============================================================================
+multi sub MAIN
+(
+    Str:D $str,                #= A string
+    Pos:D $i                   #= A positive (non-zero) integer
+)
+#===============================================================================
+{
+    qq[Input:  \$str = "$str", \$i = $i].put;
+
+    my $grouped = format-string( $str, $i );
+
+    qq[Output: "$grouped"].put;
+}
+
+#===============================================================================
+multi sub MAIN()                                  # No input: run the test suite
+#===============================================================================
+{
+    run-tests();
+}
+
+#-------------------------------------------------------------------------------
+sub format-string( Str:D $str, Pos:D $i --> Str:D )
+#-------------------------------------------------------------------------------
+{
+    my Str $bare = S:g/ \- // given $str;
+    my Str @groups;
+
+    while  $bare ~~ s/ (. ** {1 .. $i}) $ //
+    {
+        @groups.unshift: ~$0;
+    }
+
+    return @groups.join: '-';
+}
+
+#-------------------------------------------------------------------------------
+sub run-tests()
+#-------------------------------------------------------------------------------
+{
+    'Running the test suite'.put;
+
+    for test-data.lines -> Str $line
+    {
+        my Str ($test-name, $str, $i-str, $expected) = $line.split: / \| /;
+
+        for     $test-name, $str, $i-str, $expected
+        {
+            s/ ^ \s+   //;
+            s/   \s+ $ //;
+        }
+
+        my $grouped = format-string( $str, $i-str.Int );
+
+        is $grouped, $expected, $test-name;
+    }
+
+    done-testing;
+}
+
+#-------------------------------------------------------------------------------
+sub USAGE()
+#-------------------------------------------------------------------------------
+{
+    my Str $usage = $*USAGE;
+
+    $usage ~~ s:g/ ($*PROGRAM-NAME) /raku $0/;
+
+    $usage.put;
+}
+
+#-------------------------------------------------------------------------------
+sub test-data( --> Str:D )
+#-------------------------------------------------------------------------------
+{
+    return q:to/END/;
+        Example 1|ABC-D-E-F|3|ABC-DEF
+        Example 2|A-BC-D-E |2|A-BC-DE
+        Example 3|-A-B-CD-E|4|A-BCDE
+        END
+}
+
+################################################################################
diff --git a/challenge-322/athanasius/raku/ch-2.raku b/challenge-322/athanasius/raku/ch-2.raku
new file mode 100644
index 0000000000..2c94004a51
--- /dev/null
+++ b/challenge-322/athanasius/raku/ch-2.raku
@@ -0,0 +1,158 @@
+use v6d;
+
+################################################################################
+=begin comment
+
+Perl Weekly Challenge 322
+=========================
+
+TASK #2
+-------
+*Rank Array*
+
+Submitted by: Mohammad Sajid Anwar
+
+You are given an array of integers.
+
+Write a script to return an array of the ranks of each element: the lowest value
+has rank 1, next lowest rank 2, etc. If two elements are the same then they
+share the same rank.
+
+Example 1
+
+  Input: @ints = (55, 22, 44, 33)
+  Output: (4, 1, 3, 2)
+
+Example 2
+
+  Input: @ints = (10, 10, 10)
+  Output: (1, 1, 1)
+
+Example 3
+
+  Input: @ints = (5, 1, 1, 4, 3)
+  Output: (4, 1, 1, 3, 2)
+
+=end comment
+################################################################################
+
+#--------------------------------------#
+# Copyright © 2025 PerlMonk Athanasius #
+#--------------------------------------#
+
+#===============================================================================
+=begin comment
+
+Interface
+---------
+1. If no command-line arguments are given, the test suite is run. Otherwise:
+2. A non-empty list of integers is entered on the command-line.
+3. If the first list element is negative, it must preceded by "--" to indicate
+   that it is not a command-line flag.
+
+=end comment
+#===============================================================================
+
+use Test;
+
+#-------------------------------------------------------------------------------
+BEGIN
+#-------------------------------------------------------------------------------
+{
+    "\nChallenge 322, Task #2: Rank Array (Raku)\n".put;
+}
+
+#===============================================================================
+multi sub MAIN
+(
+    #| A non-empty list of integers
+
+    *@ints where { .elems > 0 && .all ~~ Int:D }
+)
+#===============================================================================
+{
+    "Input:  \@ints = (%s)\n".printf: @ints\.join: ', ';
+
+    my UInt @ranks = find-ranks( @ints );
+
+    "Output: (%s)\n".printf: @ranks.join: ', ';
+}
+
+#===============================================================================
+multi sub MAIN()                                  # No input: run the test suite
+#===============================================================================
+{
+    run-tests();
+}
+
+#-------------------------------------------------------------------------------
+sub find-ranks( List:D[Int:D] $ints --> List:D[UInt:D] )
+#-------------------------------------------------------------------------------
+{
+    my Int  @sorted = $ints.sort.squish.map: { .Int };
+    my UInt %rank{Int};
+
+    for 0 .. @sorted.end -> UInt $i
+    {
+        %rank{ @sorted[ $i ] } = $i + 1;
+    }
+
+    my UInt @ranks;
+
+    for 0 .. $ints.end -> UInt $i
+    {
+        @ranks.push: %rank{ +$ints[ $i ] };
+    }
+
+    return @ranks;
+}
+
+#-------------------------------------------------------------------------------
+sub run-tests()
+#-------------------------------------------------------------------------------
+{
+    'Running the test suite'.put;
+
+    for test-data.lines -> Str $line
+    {
+        my Str ($test-name, $int-str, $exp-str) = $line.split: / \| /;
+
+        for     $test-name, $int-str, $exp-str
+        {
+            s/ ^ \s+   //;
+            s/   \s+ $ //;
+        }
+
+        my Int  @ints    = $int-str.split( / \s+ /, :skip-empty ).map: { .Int };
+        my UInt @ranks   = find-ranks( @ints );
+        my UInt @expectd = $exp-str.split( / \s+ /, :skip-empty ).map: { .Int };
+
+        is-deeply @ranks, @expectd, $test-name;
+    }
+
+    done-testing;
+}
+
+#-------------------------------------------------------------------------------
+sub USAGE()
+#-------------------------------------------------------------------------------
+{
+    my Str $usage = $*USAGE;
+
+    $usage ~~ s:g/ ($*PROGRAM-NAME) /raku $0/;
+
+    $usage.put;
+}
+
+#-------------------------------------------------------------------------------
+sub test-data( --> Str:D )
+#-------------------------------------------------------------------------------
+{
+    return q:to/END/;
+        Example 1|55 22 44 33  |4 1 3 2
+        Example 2|10 10 10     |1 1 1
+        Example 3| 5  1  1  4 3|4 1 1 3 2
+        END
+}
+
+################################################################################