def rot13(secret_messages)
# your code here
# using the ord method in ruby for determine the char ASCII number
secret_messages.map do |x|
if x.ord >= "A".ord && x.ord <= "M".ord then
(x.ord+13).chr
elsif x.ord >= "N".ord && x.ord <= "Z".ord then
(x.ord-13).chr
elsif x.ord >= "a".ord && x.ord <= "m".ord then
(x.ord+13).chr
elsif x.ord >= "n".ord && x.ord <= "z".ord then
(x.ord-13).chr
else
x
end
end
end
answer = rot13("Why did the chicken cross the road?".chars)
puts answer.join()
answer = rot13("Gb trg gb gur bgure fvqr!".chars)
puts answer.join()
# using the .tr method of ruby
def rot13(secret_messages)
secret_messages.map { |c| c.tr("a-z", "n-za-m") }
end
answer = rot13("Why did the chicken cross the road?".chars)
puts answer.join()
answer = rot13("Gb trg gb gur bgure fvqr!".chars)
puts answer.join()
