Merge pull request #4088 from mimosinnet/branch-for-challenge-112

Solutions for challenge 112

2 files changed, 81 insertions, 0 deletions

diff --git a/challenge-112/mimosinnet/raku/ch-1.raku b/challenge-112/mimosinnet/raku/ch-1.raku
new file mode 100644
index 0000000000..3c368f87bc
--- /dev/null
+++ b/challenge-112/mimosinnet/raku/ch-1.raku
@@ -0,0 +1,34 @@
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-112/
+
+sub challenge( Str $path ) {
+  return   IO::Spec::Unix.canonpath($path, :parent);
+}
+
+multi sub MAIN( Str $path ) {
+  say 'Input:  "',$path,'"';
+  say 'Output: "',challenge($path),"\"\n";
+}
+
+multi sub MAIN( 'challenge' ) {
+  my @challenge = < /a /a/b//c/ /a/b/c/../.. >;
+
+  for @challenge -> $a {
+    MAIN($a);
+  }
+}
+
+multi sub MAIN( 'test' )  is hidden-from-USAGE {
+  use Test;
+
+  my @test = (
+    </a           /a>,
+    </a/b//c/     /a/b/c>,
+    </a/b/c/../.. /a>
+  );
+
+  for @test -> ($a, $b) {
+    is challenge($a), $b;
+  }
+
+  done-testing;
+}
diff --git a/challenge-112/mimosinnet/raku/ch-2.raku b/challenge-112/mimosinnet/raku/ch-2.raku
new file mode 100644
index 0000000000..23e94990a9
--- /dev/null
+++ b/challenge-112/mimosinnet/raku/ch-2.raku
@@ -0,0 +1,47 @@
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-112/
+
+sub challenge( $top ) {
+  my $steps = 1 x $top;
+  my $number_steps = 1;
+  while $steps ~~ /11/ {
+    $steps = $steps.subst('11','2');
+    $number_steps += $steps.split('', :skip-empty).permutations.unique(:with(&[eqv])).elems;
+  }
+  return $number_steps;
+}
+
+sub write_steps( $top ) {
+  my $steps = 1 x $top;
+  my @options;
+  @options.push: $steps.split('', :skip-empty);
+  while $steps ~~ /11/ {
+    $steps = $steps.subst('11','2');
+    @options.append: $steps.split('', :skip-empty).permutations.unique(:with(&[eqv]));
+  }
+  return @options;
+}
+
+multi sub MAIN( $top ) {
+  say "\nInput: \$n = ",$top;
+  say 'Output:     ',challenge($top);
+  my $i;
+  for write_steps($top) -> @steps {
+    say '    Option ',++$i,': ',@steps.join('').subst('1','1 step  + ', :g).subst('2','2 steps + ', :g).chop(3);
+  }
+}
+
+multi sub MAIN( 'challenge' ) {
+  MAIN(3);
+  MAIN(4);
+}
+
+multi sub MAIN( 'test' )  is hidden-from-USAGE {
+  use Test;
+
+  is challenge(3),3;
+  is challenge(4),5;
+  is challenge(10),89;
+
+  done-testing;
+
+}