Added challenge 90 solution

1 files changed, 38 insertions, 0 deletions

diff --git a/challenge-090/cristian-heredia/perl/ch-2.pl b/challenge-090/cristian-heredia/perl/ch-2.pl
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+++ b/challenge-090/cristian-heredia/perl/ch-2.pl
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+=begin
+
+    TASK #2 › Ethiopian Multiplication
+    Submitted by: Mohammad S Anwar
+    You are given two positive numbers $A and $B.
+    
+    Write a script to demonstrate Ethiopian Multiplication using the given numbers.
+
+=end
+=cut
+
+use strict;
+use warnings;
+
+#variables:
+my $A = 14;
+my $B = 12;
+my $result = 0;
+print "The result for $A * $B is: ";
+calculation();
+
+sub calculation {
+    checkOdd($A);
+    while ($A != 1) {
+        use integer;
+        $A = $A/2;
+        $B = $B*2;
+        checkOdd($A);
+    }
+    print "$result\n";
+}
+
+sub checkOdd {
+    my $number = shift;
+    if ($number%2) {
+        $result = $result + $B;
+    }
+}
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