Code Golf September 2016

September 2016 - Reversed Alphabet.md

September 2016 - Reversed Alphabet

Task

Reverse the alphabet so that abc => zyx and ABC => ZYX

Examples:

("code") => "xlwv" ("Golf") => "Tlou" ("1Avva8TT") => "1Zee8GG"

^You can assume that you will always recieved a valid string

About Code Golf Scotland

Language: PHP
Length: 76
Solution:
function r($x){$l=str_split($x);foreach($l as $i){echo chr(ord($i)+4^31);}}

Language: PHP (v5.4 — deprecated use of /e modifier)
Length: 73
Solution:

function r($w){return preg_replace('/[a-z]/ei','chr(ord(\\0)+4^31)',$w);}

or 50 characters without the function() wrapping:

preg_replace('/[a-z]/ei','chr(ord(\\0)+4^31)',$w);

Language: Python 2.7
Length: 51
Solution:

f=lambda s:`map(lambda x:chr(31^4+ord(x)),s)`[2::5]