Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask
 
PerlMonks  

Re: finding duplicate data

by gjb (Vicar)
on Jan 21, 2004 at 10:49 UTC ( #322835=note: print w/ replies, xml ) Need Help??


in reply to finding duplicate data

Sounds very much like homework, so I'll just give you a tip: a hash (e.g. %data) would come in handy. You can use the data (A(01), B(02), etc) as keys and the number of times you encounter the data as values.

$data{$line}++;
would do the trick.

As a final step, you iterate over the keys (the function keys is useful here) in the hash and print those keys that have values larger than 1.

Hope this helps, -gjb-


Comment on Re: finding duplicate data
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://322835]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (16)
As of 2015-05-26 16:52 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    In my home, the TV remote control is ...









    Results (508 votes), past polls