https://theweeklychallenge.org/blog/perl-weekly-challenge-348/

2 files changed, 48 insertions, 0 deletions

diff --git a/challenge-348/kjetillll/perl/ch-1.pl b/challenge-348/kjetillll/perl/ch-1.pl
new file mode 100644
index 0000000000..389d2b6dd5
--- /dev/null
+++ b/challenge-348/kjetillll/perl/ch-1.pl
@@ -0,0 +1,33 @@
+
+sub f { shift() =~ /^(.)(.*)(.)$/ ? f( $2, map /[aeiou]/i + shift(), $1, $3) : $_[0]>0 && shift() == shift() }
+
+sub f_verbose {  #same thing more verbose
+    use strict; use warnings;
+    my($str, $count_vowels_left, $count_vowels_right) = (@_,0,0);
+
+    if( $str =~ s/^(.)(.*)(.)$/$2/ ){
+	my($left_char, $middle_string, $right_char) = ($1,$2,$3);
+	return f_verbose( $middle_string,
+			  $count_vowels_left  + ( $left_char  =~ /[aeiou]/i ? 1 : 0 ),
+			  $count_vowels_right + ( $right_char =~ /[aeiou]/i ? 1 : 0 ) )
+    }
+    else {
+	return $count_vowels_left > 0   &&   $count_vowels_left == $count_vowels_right
+    }
+}
+
+use Test::More;
+
+ok f("textbook")     == 0;
+ok f("book")         == 1;
+ok f("AbCdEfGh")     == 1;
+ok f("rhythmmyth")   == 0;
+ok f("UmpireeAudio") == 0;
+
+ok f_verbose("textbook")     == 0;
+ok f_verbose("book")         == 1;
+ok f_verbose("AbCdEfGh")     == 1;
+ok f_verbose("rhythmmyth")   == 0;
+ok f_verbose("UmpireeAudio") == 0;
+
+done_testing;
diff --git a/challenge-348/kjetillll/perl/ch-2.pl b/challenge-348/kjetillll/perl/ch-2.pl
new file mode 100644
index 0000000000..434061308e
--- /dev/null
+++ b/challenge-348/kjetillll/perl/ch-2.pl
@@ -0,0 +1,15 @@
+sub f {
+    my($source, $target, $count) = map { /(\d+):(\d+)/ ? $1 * 60 + $2 : $_ } @_, 0;
+    $source > $target       ? f( $source, $target + 24 * 60, 0          ) :
+    $source <= $target - 60 ? f( $source, $target - 60,      $count + 1 ) :
+    $source <= $target - 15 ? f( $source, $target - 15,      $count + 1 ) :
+    $source <= $target -  5 ? f( $source, $target -  5,      $count + 1 ) :
+    $source <= $target -  1 ? f( $source, $target -  1,      $count + 1 ) :
+    $count
+}
+
+print f("02:30", "02:45") == 1 ? "ok\n" : "error\n";
+print f("11:55", "12:15") == 2 ? "ok\n" : "error\n";
+print f("09:00", "13:00") == 4 ? "ok\n" : "error\n";
+print f("23:45", "00:30") == 3 ? "ok\n" : "error\n";
+print f("14:20", "15:25") == 2 ? "ok\n" : "error\n";