Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

Re^3: x objects in y containers where all objects are used

by ikegami (Patriarch)
on Nov 07, 2009 at 23:23 UTC ( [id://805693]=note: print w/replies, xml ) Need Help??


in reply to Re^2: x objects in y containers where all objects are used
in thread x objects in y containers where all objects are used

The OP specifically said he didn't want the count. The count is easy to get without even using recursion. It's a simple Combination: 
C($num_objects-1, $num_containers-1)
= C(4, 2)
= 4! / (4-2)! / 2!
= (4*3) / (2*1)
= 6

[download]

In Section Seekers of Perl Wisdom

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?

www.com | www.net | www.org
Node Status?
node history
Node Type: note [id://805693]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? • Last hour • Other CB clients
Other Users?
Others having an uproarious good time at the Monastery: (2)
As of 2024-04-26 01:31 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found