Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

Re: Re: Detecting transpositions

by Cine (Friar)
on Aug 06, 2003 at 16:39 UTC ( #281478=note: print w/replies, xml ) Need Help??


in reply to Re: Detecting transpositions
in thread Detecting transpositions

So here it is with bonus, just a little longer... And now, its just a little faster than yours. Except on large identical strings where it is 3 times faster because of the first line. Without it the regexp would perform very slow.
sub comp { return -1 if $_[0] eq $_[1]; local $_ = $_[0] ^ $_[1]; /^([\x00]*)([^\x00])\2[\x00]*$/; $1 ? length$1 : -1; }


T I M T O W T D I

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://281478]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (3)
As of 2022-08-17 01:08 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?