5 files changed, 119 insertions, 0 deletions
diff --git a/challenge-273/paulo-custodio/Makefile b/challenge-273/paulo-custodio/Makefile
new file mode 100644
index 0000000000..c3c762d746
--- /dev/null
+++ b/challenge-273/paulo-custodio/Makefile
@@ -0,0 +1,2 @@
+all:
+	perl ../../challenge-001/paulo-custodio/test.pl
diff --git a/challenge-273/paulo-custodio/perl/ch-1.pl b/challenge-273/paulo-custodio/perl/ch-1.pl
new file mode 100644
index 0000000000..c46e80c366
--- /dev/null
+++ b/challenge-273/paulo-custodio/perl/ch-1.pl
@@ -0,0 +1,39 @@
+#!/usr/bin/env perl
+
+# Challenge 273
+#
+# Task 1: Percentage of Character
+# Submitted by: Mohammad Sajid Anwar
+# You are given a string, $str and a character $char.
+#
+# Write a script to return the percentage, nearest whole, of given character in
+# the given string.
+#
+# Example 1
+# Input: $str = "perl", $char = "e"
+# Output: 25
+# Example 2
+# Input: $str = "java", $char = "a"
+# Output: 50
+# Example 3
+# Input: $str = "python", $char = "m"
+# Output: 0
+# Example 4
+# Input: $str = "ada", $char = "a"
+# Output: 67
+# Example 5
+# Input: $str = "ballerina", $char = "l"
+# Output: 22
+# Example 6
+# Input: $str = "analitik", $char = "k"
+# Output: 13
+
+use Modern::Perl;
+
+say percent_char(@ARGV);
+
+sub percent_char {
+    my($str, $ch) = @_;
+    my $percent = 100 * ($str =~ s/$ch/$ch/g) / length($str);
+    return int($percent+0.5);
+}
diff --git a/challenge-273/paulo-custodio/perl/ch-2.pl b/challenge-273/paulo-custodio/perl/ch-2.pl
new file mode 100644
index 0000000000..a21c7db279
--- /dev/null
+++ b/challenge-273/paulo-custodio/perl/ch-2.pl
@@ -0,0 +1,28 @@
+#!/usr/bin/env perl
+
+# Challenge 273
+#
+# Task 2: B After A
+# Submitted by: Mohammad Sajid Anwar
+# You are given a string, $str.
+#
+# Write a script to return true if there is at least one b, and no a appears
+# after the first b.
+#
+# Example 1
+# Input: $str = "aabb"
+# Output: true
+# Example 2
+# Input: $str = "abab"
+# Output: false
+# Example 3
+# Input: $str = "aaa"
+# Output: false
+# Example 4
+# Input: $str = "bbb"
+# Output: true
+
+use Modern::Perl;
+
+$_ = shift // "";
+say /b/ && !/^[^b]*b.*?a/ ? 'true' : 'false';
diff --git a/challenge-273/paulo-custodio/t/test-1.yaml b/challenge-273/paulo-custodio/t/test-1.yaml
new file mode 100644
index 0000000000..756e9f80b7
--- /dev/null
+++ b/challenge-273/paulo-custodio/t/test-1.yaml
@@ -0,0 +1,30 @@
+- setup:
+  cleanup:
+  args:     perl e
+  input:
+  output:   25
+- setup:
+  cleanup:
+  args:     java a
+  input:
+  output:   50
+- setup:
+  cleanup:
+  args:     python m
+  input:
+  output:   0
+- setup:
+  cleanup:
+  args:     ada a
+  input:
+  output:   67
+- setup:
+  cleanup:
+  args:     ballerina l
+  input:
+  output:   22
+- setup:
+  cleanup:
+  args:     analitik k
+  input:
+  output:   13
diff --git a/challenge-273/paulo-custodio/t/test-2.yaml b/challenge-273/paulo-custodio/t/test-2.yaml
new file mode 100644
index 0000000000..a114fccb37
--- /dev/null
+++ b/challenge-273/paulo-custodio/t/test-2.yaml
@@ -0,0 +1,20 @@
+- setup:
+  cleanup:
+  args:     aabb
+  input:
+  output:   true
+- setup:
+  cleanup:
+  args:     abab
+  input:
+  output:   false
+- setup:
+  cleanup:
+  args:     aaa
+  input:
+  output:   false
+- setup:
+  cleanup:
+  args:     bbb
+  input:
+  output:   true