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-rw-r--r--challenge-262/jo-37/blog.txt1
-rwxr-xr-xchallenge-262/jo-37/perl/ch-1.pl55
-rwxr-xr-xchallenge-262/jo-37/perl/ch-2.pl62
3 files changed, 118 insertions, 0 deletions
diff --git a/challenge-262/jo-37/blog.txt b/challenge-262/jo-37/blog.txt
new file mode 100644
index 0000000000..a343be35a4
--- /dev/null
+++ b/challenge-262/jo-37/blog.txt
@@ -0,0 +1 @@
+https://github.sommrey.de/the-bears-den/2024/03/28/ch-262.html
diff --git a/challenge-262/jo-37/perl/ch-1.pl b/challenge-262/jo-37/perl/ch-1.pl
new file mode 100755
index 0000000000..bff884ad9f
--- /dev/null
+++ b/challenge-262/jo-37/perl/ch-1.pl
@@ -0,0 +1,55 @@
+#!/usr/bin/perl -s
+
+use v5.24;
+use Test2::V0;
+use List::Util qw(max reduce);
+
+our ($tests, $examples);
+
+run_tests() if $tests || $examples; # does not return
+
+die <<EOS unless @ARGV;
+usage: $0 [-examples] [-tests] [--] [N...]
+
+-examples
+ run the examples from the challenge
+
+-tests
+ run some tests
+
+N...
+ list of numbers
+
+EOS
+
+
+### Input and Output
+
+say mpn(@ARGV);
+
+
+### Implementation
+
+sub mpn {
+ max +(reduce {$a->[1 + ($b <=> 0)]++; $a} [0,0,0], @_)->@[0,2];
+}
+
+
+### Examples and tests
+
+sub run_tests {
+ SKIP: {
+ skip "examples" unless $examples;
+
+ is mpn(-3, 1, 2, -1, 3, -2, 4), 4, 'example 1';
+ is mpn(-1, -2, -3, 1), 3, 'example 2';
+ is mpn(1,2), 2, 'example 3';
+ }
+
+ SKIP: {
+ skip "tests" unless $tests;
+ }
+
+ done_testing;
+ exit;
+}
diff --git a/challenge-262/jo-37/perl/ch-2.pl b/challenge-262/jo-37/perl/ch-2.pl
new file mode 100755
index 0000000000..bae511c438
--- /dev/null
+++ b/challenge-262/jo-37/perl/ch-2.pl
@@ -0,0 +1,62 @@
+#!/usr/bin/perl -s
+
+use v5.24;
+use Test2::V0 '!float';
+use PDL;
+
+our ($tests, $examples);
+
+run_tests() if $tests || $examples; # does not return
+
+die <<EOS unless @ARGV > 1;
+usage: $0 [-examples] [-tests] [K I...]
+
+-examples
+ run the examples from the challenge
+
+-tests
+ run some tests
+
+K
+ (positive) integer
+
+I...
+ list of integers
+
+EOS
+
+
+### Input and Output
+
+say ced(@ARGV);
+
+
+### Implementation
+
+sub ced {
+ my $k = shift;
+ my $ints = long @_;
+ my $i = sequence($ints);
+ my $j = $i->dummy(0);
+
+ which(($j > $i) & ($ints->dummy(0) == $ints) & ! ($i * $j % $k))->nelem;
+}
+
+
+### Examples and tests
+
+sub run_tests {
+ SKIP: {
+ skip "examples" unless $examples;
+
+ is ced(2 ,=> 3,1,2,2,2,1,3), 4, 'example 1';
+ is ced(1,2,3), 0, 'example 2';
+ }
+
+ SKIP: {
+ skip "tests" unless $tests;
+ }
+
+ done_testing;
+ exit;
+}