https://theweeklychallenge.org/blog/perl-weekly-challenge-273/

2 files changed, 39 insertions, 0 deletions

diff --git a/challenge-273/kjetillll/perl/ch-1.pl b/challenge-273/kjetillll/perl/ch-1.pl
new file mode 100644
index 0000000000..405468fd37
--- /dev/null
+++ b/challenge-273/kjetillll/perl/ch-1.pl
@@ -0,0 +1,21 @@
+use strict; use warnings; use Test::More tests=>6;
+
+sub percentage_of_char {
+  my( $str, $char ) = @_;
+  my $count = () = $str =~ /\Q$char/g;
+  int( 0.5  +  100 * $count / length $str );
+}
+
+my @tests = <<'' =~ /"(.*?)".*?"(.*?)".*?(\d+)/g;
+    Input: $str = "perl",      $char = "e" Output: 25
+    Input: $str = "java",      $char = "a" Output: 50
+    Input: $str = "python",    $char = "m" Output: 0
+    Input: $str = "ada",       $char = "a" Output: 67
+    Input: $str = "ballerina", $char = "l" Output: 22
+    Input: $str = "analitik",  $char = "k" Output: 13
+
+while( @tests ){
+    my( $str, $char, $output) = splice @tests, 0, 3;
+    my $p = percentage_of_char($str,$char);
+    is $p, $output, sprintf "test str: %15s   char: %s   want: %2d   got: %2d", $str, $char, $output, $p;
+}
diff --git a/challenge-273/kjetillll/perl/ch-2.pl b/challenge-273/kjetillll/perl/ch-2.pl
new file mode 100644
index 0000000000..7e0cb71e38
--- /dev/null
+++ b/challenge-273/kjetillll/perl/ch-2.pl
@@ -0,0 +1,18 @@
+use strict; use warnings; use Test::More tests=>4;
+
+sub b_after_a {
+    local $_ = shift;
+    s/^.*?b// and /b/ and !/a/
+}
+
+my @tests = <<'' =~ /"(.*?)".*?(true|false)/g;
+    Input: $str = "aabb"  Output: true
+    Input: $str = "abab"  Output: false
+    Input: $str = "aaa"   Output: false
+    Input: $str = "bbb"   Output: true
+
+while( @tests ){
+    my( $str, $output ) = splice @tests, 0, 2;
+    my $got = b_after_a( $str ) ? 'true' : 'false';
+    is $got, $output, "want: $output   got: $got";
+}