who can alex date?

Big ups to Alex on this fun exercise. It starts to show you the vast difference between a novice and a professional.

So this guy spits out some code at me:

and it works! Okay, I'm kind of in awe. I threw in a bunch of numbers to test it - even some creepy numbers! Because we all want to know who 97-year-olds can date.


1.9.3-p194 :001 > load "alexdating.rb"
 => true
1.9.3-p194 :002 > ideal_age(33)
 => 23
1.9.3-p194 :003 > ideal_age(43)
 => 28
1.9.3-p194 :004 > ideal_age(97)
 => 55
1.9.3-p194 :005 > ideal_age(4)
 => 9