diff options
| -rwxr-xr-x | challenge-333/jo-37/perl/ch-2.pl | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/challenge-333/jo-37/perl/ch-2.pl b/challenge-333/jo-37/perl/ch-2.pl new file mode 100755 index 0000000000..6f1fbf30ac --- /dev/null +++ b/challenge-333/jo-37/perl/ch-2.pl @@ -0,0 +1,91 @@ +#!/usr/bin/perl + +use v5.26; +use Test2::V0 -no_srand; +use Test2::Tools::Subtest 'subtest_streamed'; +use Getopt::Long; +use experimental 'signatures'; + + +### Options and Arguments + +my ($tests, $examples, $verbose); +GetOptions( + 'examples!' => \$examples, + 'tests!' => \$tests, + 'verbose!' => \$verbose, +) or usage(); + +run_tests($examples, $tests); # tests do not return + +usage() unless @ARGV; + +sub usage { + die <<~EOS; + $0 - duplicate zeros + + usage: $0 [-examples] [-tests] [N...] + + -examples + run the examples from the challenge + + -tests + run some tests + + N... + list of numbers + + EOS +} + + +### Input and Output + +say "(@{[duplicate_zeros(@ARGV)]})"; + + +### Implementation +# +# For details see: +# https://github.sommrey.de/the-bears-den/2025/08/08/ch-333.html#task-2 + + +sub duplicate_zeros { + (map {($_) x (!$_ + 1)} @_)[0 .. $#_]; +} + + +### Examples and Tests + +sub run_tests ($examples, $tests) { + return unless $examples || $tests; + + state sub run_example ($args, $expected, $name) { + my @result = duplicate_zeros(@$args); + is \@result, $expected, + "$name: (@$args) -> (@$expected)"; + } + + plan 2; + + $examples ? subtest_streamed(examples => sub { + my @examples = ( + [[1, 0, 2, 3, 0, 4, 5, 0], [1, 0, 0, 2, 3, 0, 0, 4], 'example 1'], + [[1, 2, 3], [1, 2, 3], 'example 2'], + [[1, 2, 3, 0], [1, 2, 3, 0], 'example 3'], + [[0, 0, 1, 2], [0, 0, 0, 0], 'example 4'], + [[1, 2, 0, 3, 4], [1, 2, 0, 0, 3], 'example 5'], + ); + plan scalar @examples; + for (@examples) { + run_example @$_; + } + }) : pass 'skip examples'; + + $tests ? subtest_streamed(tests => sub { + plan 1; + pass 'no tests'; + }) : pass 'skip tests'; + + exit; +} |